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HBASE-15787 Change the flush related heuristics to work with offheap size 

configured (Ram)
This commit is contained in:
Ramkrishna 2016-12-15 22:49:52 +05:30
parent a2a7618d26
commit d1147eeb7e
14 changed files with 665 additions and 152 deletions
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12
hbase-server/src/main/java/org/apache/hadoop/hbase/io/util/MemorySizeUtil.java
View File

@ -157,9 +157,19 @@ public class MemorySizeUtil {
+ " Going with on heap global memstore size ('" + MEMSTORE_SIZE_KEY + "')");
}
}
return new Pair<Long, MemoryType>(getOnheapGlobalMemstoreSize(conf), MemoryType.HEAP);
}
/**
* Returns the onheap global memstore limit based on the config
* 'hbase.regionserver.global.memstore.size'.
* @param conf
* @return the onheap global memstore limt
*/
public static long getOnheapGlobalMemstoreSize(Configuration conf) {
long max = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage().getMax();
float globalMemStorePercent = getGlobalMemStoreHeapPercent(conf, true);
return new Pair<Long, MemoryType>((long) (max * globalMemStorePercent), MemoryType.HEAP);
return ((long) (max * globalMemStorePercent));
}
/**

23
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultHeapMemoryTuner.java
View File

@ -139,6 +139,10 @@ class DefaultHeapMemoryTuner implements HeapMemoryTuner {
}
StepDirection newTuneDirection = getTuneDirection(context);
long blockedFlushCount = context.getBlockedFlushCount();
long unblockedFlushCount = context.getUnblockedFlushCount();
long totalOnheapFlushCount = blockedFlushCount + unblockedFlushCount;
boolean offheapMemstore = context.isOffheapMemstore();
float newMemstoreSize;
float newBlockCacheSize;
@ -159,15 +163,28 @@ class DefaultHeapMemoryTuner implements HeapMemoryTuner {
&& decayingTunerStepSizeSum > 0)) {
// Current step is opposite of past tuner actions so decrease the step size to reach steady
// state.
if (!offheapMemstore && step != minimumStepSize) {
// we leave the step to be at minimumStepSize for offheap memstore
step = step / 2.00f;
}
}
if (step < minimumStepSize) {
// If step size is too small then we do nothing.
LOG.debug("Tuner step size is too low; we will not perform any tuning this time.");
step = 0.0f;
newTuneDirection = StepDirection.NEUTRAL;
}
// Increase / decrease the memstore / block cahce sizes depending on new tuner step.
// There are no flushes due to onheap pressure and
// we have an offheap memstore and we are in need of more block_cache size.
if (totalOnheapFlushCount == 0 && offheapMemstore
&& newTuneDirection == StepDirection.INCREASE_BLOCK_CACHE_SIZE) {
// we are sure that there are flushes only due to offheap pressure
// So don't do the memstore decrease equal to the step size. Instead do minimum stepSize
// decrease. But even if we have some flushes due to heap then it is better we tune
// the existing way.
step = minimumStepSize;
}
// Increase / decrease the memstore / block cache sizes depending on new tuner step.
// We don't want to exert immediate pressure on memstore. So, we decrease its size gracefully;
// we set a minimum bar in the middle of the total memstore size and the lower limit.
float minMemstoreSize = ((globalMemStoreLimitLowMarkPercent + 1) * curMemstoreSize) / 2.00f;
@ -342,8 +359,8 @@ class DefaultHeapMemoryTuner implements HeapMemoryTuner {
*/
private void addToRollingStats(TunerContext context) {
rollingStatsForCacheMisses.insertDataValue(context.getCacheMissCount());
rollingStatsForFlushes.insertDataValue(context.getBlockedFlushCount() +
context.getUnblockedFlushCount());
rollingStatsForFlushes
.insertDataValue(context.getBlockedFlushCount() + context.getUnblockedFlushCount());
rollingStatsForEvictions.insertDataValue(context.getEvictCount());
}

8
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
View File

@ -48,6 +48,7 @@ import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import javax.management.MalformedObjectNameException;
@ -574,7 +575,7 @@ public class HRegionServer extends HasThread implements
// or process owner as default super user.
Superusers.initialize(conf);
regionServerAccounting = new RegionServerAccounting();
regionServerAccounting = new RegionServerAccounting(conf);
cacheConfig = new CacheConfig(conf);
mobCacheConfig = new MobCacheConfig(conf);
uncaughtExceptionHandler = new UncaughtExceptionHandler() {
@ -1482,7 +1483,7 @@ public class HRegionServer extends HasThread implements
// it.
Pair<Long, MemoryType> pair = MemorySizeUtil.getGlobalMemstoreSize(conf);
long globalMemStoreSize = pair.getFirst();
boolean offheap = pair.getSecond() == MemoryType.NON_HEAP;
boolean offheap = this.regionServerAccounting.isOffheap();
// When off heap memstore in use, take full area for chunk pool.
float poolSizePercentage = offheap ? 1.0F
: conf.getFloat(MemStoreLAB.CHUNK_POOL_MAXSIZE_KEY, MemStoreLAB.POOL_MAX_SIZE_DEFAULT);
@ -3588,8 +3589,7 @@ public class HRegionServer extends HasThread implements
// return 0 during RS initialization
return 0.0;
}
return getRegionServerAccounting().getGlobalMemstoreSize() * 1.0
/ cacheFlusher.globalMemStoreLimitLowMark;
return getRegionServerAccounting().getFlushPressure();
}
@Override

31
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HeapMemoryManager.java
View File

@ -21,6 +21,7 @@ package org.apache.hadoop.hbase.regionserver;
import static org.apache.hadoop.hbase.HConstants.HFILE_BLOCK_CACHE_SIZE_KEY;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryType;
import java.lang.management.MemoryUsage;
import java.util.ArrayList;
import java.util.List;
@ -77,6 +78,7 @@ public class HeapMemoryManager {
private float heapOccupancyPercent;
private final ResizableBlockCache blockCache;
// TODO : remove this and mark regionServerAccounting as the observer directly
private final FlushRequester memStoreFlusher;
private final Server server;
private final RegionServerAccounting regionServerAccounting;
@ -240,6 +242,8 @@ public class HeapMemoryManager {
Class<? extends HeapMemoryTuner> tunerKlass = server.getConfiguration().getClass(
HBASE_RS_HEAP_MEMORY_TUNER_CLASS, DefaultHeapMemoryTuner.class, HeapMemoryTuner.class);
heapMemTuner = ReflectionUtils.newInstance(tunerKlass, server.getConfiguration());
tunerContext
.setOffheapMemstore(regionServerAccounting.isOffheap());
}
@Override
@ -298,10 +302,10 @@ public class HeapMemoryManager {
unblockedFlushCnt = unblockedFlushCount.getAndSet(0);
tunerContext.setUnblockedFlushCount(unblockedFlushCnt);
metricsHeapMemoryManager.updateUnblockedFlushCount(unblockedFlushCnt);
// TODO : add support for offheap metrics
tunerContext.setCurBlockCacheUsed((float) blockCache.getCurrentSize() / maxHeapSize);
metricsHeapMemoryManager.setCurBlockCacheSizeGauge(blockCache.getCurrentSize());
long globalMemstoreHeapSize = regionServerAccounting.getGlobalMemstoreSize()
+ regionServerAccounting.getGlobalMemstoreHeapOverhead();
long globalMemstoreHeapSize = regionServerAccounting.getGlobalMemstoreSize();
tunerContext.setCurMemStoreUsed((float) globalMemstoreHeapSize / maxHeapSize);
metricsHeapMemoryManager.setCurMemStoreSizeGauge(globalMemstoreHeapSize);
tunerContext.setCurBlockCacheSize(blockCachePercent);
@ -354,14 +358,20 @@ public class HeapMemoryManager {
metricsHeapMemoryManager.updateMemStoreDeltaSizeHistogram(memStoreDeltaSize);
metricsHeapMemoryManager.updateBlockCacheDeltaSizeHistogram(blockCacheDeltaSize);
long newBlockCacheSize = (long) (maxHeapSize * blockCacheSize);
// we could have got an increase or decrease in size for the offheap memstore
// also if the flush had happened due to heap overhead. In that case it is ok
// to adjust the onheap memstore limit configs
long newMemstoreSize = (long) (maxHeapSize * memstoreSize);
LOG.info("Setting block cache heap size to " + newBlockCacheSize
+ " and memstore heap size to " + newMemstoreSize);
blockCachePercent = blockCacheSize;
blockCache.setMaxSize(newBlockCacheSize);
globalMemStorePercent = memstoreSize;
// Internally sets it to RegionServerAccounting
// TODO : Set directly on RSAccounting??
memStoreFlusher.setGlobalMemstoreLimit(newMemstoreSize);
for (HeapMemoryTuneObserver observer : tuneObservers) {
// Risky.. If this newMemstoreSize decreases we reduce the count in offheap chunk pool
observer.onHeapMemoryTune(newMemstoreSize, newBlockCacheSize);
}
}
@ -376,14 +386,16 @@ public class HeapMemoryManager {
@Override
public void flushRequested(FlushType type, Region region) {
switch (type) {
case ABOVE_HIGHER_MARK:
case ABOVE_ONHEAP_HIGHER_MARK:
blockedFlushCount.incrementAndGet();
break;
case ABOVE_LOWER_MARK:
case ABOVE_ONHEAP_LOWER_MARK:
unblockedFlushCount.incrementAndGet();
break;
// Removed the counting of the offheap related flushes (after reviews). Will add later if
// needed
default:
// In case of normal flush don't do any action.
// In case of any other flush don't do any action.
break;
}
}
@ -403,6 +415,7 @@ public class HeapMemoryManager {
private float curMemStoreUsed;
private float curMemStoreSize;
private float curBlockCacheSize;
private boolean offheapMemstore;
public long getBlockedFlushCount() {
return blockedFlushCount;
@ -467,6 +480,14 @@ public class HeapMemoryManager {
public void setCurMemStoreUsed(float d) {
this.curMemStoreUsed = d;
}
public void setOffheapMemstore(boolean offheapMemstore) {
this.offheapMemstore = offheapMemstore;
}
public boolean isOffheapMemstore() {
return this.offheapMemstore;
}
}
/**

5
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreChunkPool.java
View File

@ -234,6 +234,11 @@ public class MemStoreChunkPool implements HeapMemoryTuneObserver {
@Override
public void onHeapMemoryTune(long newMemstoreSize, long newBlockCacheSize) {
// don't do any tuning in case of offheap memstore
if (this.offheap) {
LOG.warn("Not tuning the chunk pool as it is offheap");
return;
}
int newMaxCount = (int) (newMemstoreSize * poolSizePercentage / chunkSize);
if (newMaxCount != this.maxCount) {
// We need an adjustment in the chunks numbers

125
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.java
View File

@ -49,12 +49,10 @@ import org.apache.hadoop.hbase.DroppedSnapshotException;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.client.RegionReplicaUtil;
import org.apache.hadoop.hbase.io.util.MemorySizeUtil;
import org.apache.hadoop.hbase.regionserver.Region.FlushResult;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.HasThread;
import org.apache.hadoop.hbase.util.Pair;
import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil;
import org.apache.hadoop.hbase.util.Threads;
import org.apache.hadoop.ipc.RemoteException;
@ -90,10 +88,6 @@ class MemStoreFlusher implements FlushRequester {
private final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
private final Object blockSignal = new Object();
protected long globalMemStoreLimit;
protected float globalMemStoreLimitLowMarkPercent;
protected long globalMemStoreLimitLowMark;
private long blockingWaitTime;
private final LongAdder updatesBlockedMsHighWater = new LongAdder();
@ -111,32 +105,18 @@ class MemStoreFlusher implements FlushRequester {
this.server = server;
this.threadWakeFrequency =
conf.getLong(HConstants.THREAD_WAKE_FREQUENCY, 10 * 1000);
Pair<Long, MemoryType> pair = MemorySizeUtil.getGlobalMemstoreSize(conf);
this.globalMemStoreLimit = pair.getFirst();
boolean onheap = pair.getSecond() == MemoryType.HEAP;
// When off heap memstore in use we configure the global off heap space for memstore as bytes
// not as % of max memory size. In such case, the lower water mark should be specified using the
// key "hbase.regionserver.global.memstore.size.lower.limit" which says % of the global upper
// bound and defaults to 95%. In on heap case also specifying this way is ideal. But in the past
// we used to take lower bound also as the % of xmx (38% as default). For backward compatibility
// for this deprecated config,we will fall back to read that config when new one is missing.
// Only for on heap case, do this fallback mechanism. For off heap it makes no sense.
// TODO When to get rid of the deprecated config? ie
// "hbase.regionserver.global.memstore.lowerLimit". Can get rid of this boolean passing then.
this.globalMemStoreLimitLowMarkPercent = MemorySizeUtil.getGlobalMemStoreHeapLowerMark(conf,
onheap);
this.globalMemStoreLimitLowMark =
(long) (this.globalMemStoreLimit * this.globalMemStoreLimitLowMarkPercent);
this.blockingWaitTime = conf.getInt("hbase.hstore.blockingWaitTime",
90000);
int handlerCount = conf.getInt("hbase.hstore.flusher.count", 2);
this.flushHandlers = new FlushHandler[handlerCount];
LOG.info("globalMemStoreLimit="
+ TraditionalBinaryPrefix.long2String(this.globalMemStoreLimit, "", 1)
+ TraditionalBinaryPrefix
.long2String(this.server.getRegionServerAccounting().getGlobalMemstoreLimit(), "", 1)
+ ", globalMemStoreLimitLowMark="
+ TraditionalBinaryPrefix.long2String(this.globalMemStoreLimitLowMark, "", 1)
+ ", Offheap=" + !onheap);
+ TraditionalBinaryPrefix.long2String(
this.server.getRegionServerAccounting().getGlobalMemstoreLimitLowMark(), "", 1)
+ ", Offheap="
+ (this.server.getRegionServerAccounting().isOffheap()));
}
public LongAdder getUpdatesBlockedMsHighWater() {
@ -210,7 +190,7 @@ class MemStoreFlusher implements FlushRequester {
LOG.info("Refreshing storefiles of region " + bestRegionReplica
+ " due to global heap pressure. Total memstore size="
+ StringUtils
.humanReadableInt(server.getRegionServerAccounting().getGlobalMemstoreSize())
.humanReadableInt(server.getRegionServerAccounting().getGlobalMemstoreDataSize())
+ " memstore heap overhead=" + StringUtils.humanReadableInt(
server.getRegionServerAccounting().getGlobalMemstoreHeapOverhead()));
flushedOne = refreshStoreFilesAndReclaimMemory(bestRegionReplica);
@ -222,7 +202,7 @@ class MemStoreFlusher implements FlushRequester {
} else {
LOG.info("Flush of region " + regionToFlush + " due to global heap pressure. "
+ "Total Memstore size="
+ humanReadableInt(server.getRegionServerAccounting().getGlobalMemstoreSize())
+ humanReadableInt(server.getRegionServerAccounting().getGlobalMemstoreDataSize())
+ ", Region memstore size="
+ humanReadableInt(regionToFlush.getMemstoreSize()));
flushedOne = flushRegion(regionToFlush, true, true);
@ -251,9 +231,15 @@ class MemStoreFlusher implements FlushRequester {
wakeupPending.set(false); // allow someone to wake us up again
fqe = flushQueue.poll(threadWakeFrequency, TimeUnit.MILLISECONDS);
if (fqe == null || fqe instanceof WakeupFlushThread) {
if (isAboveLowWaterMark()) {
FlushType type = isAboveLowWaterMark();
if (type != FlushType.NORMAL) {
LOG.debug("Flush thread woke up because memory above low water="
+ TraditionalBinaryPrefix.long2String(globalMemStoreLimitLowMark, "", 1));
+ TraditionalBinaryPrefix.long2String(
server.getRegionServerAccounting().getGlobalMemstoreLimitLowMark(), "", 1));
// For offheap memstore, even if the lower water mark was breached due to heap overhead
// we still select the regions based on the region's memstore data size.
// TODO : If we want to decide based on heap over head it can be done without tracking
// it per region.
if (!flushOneForGlobalPressure()) {
// Wasn't able to flush any region, but we're above low water mark
// This is unlikely to happen, but might happen when closing the
@ -355,17 +341,15 @@ class MemStoreFlusher implements FlushRequester {
/**
* Return true if global memory usage is above the high watermark
*/
private boolean isAboveHighWaterMark() {
return server.getRegionServerAccounting().getGlobalMemstoreSize()
+ server.getRegionServerAccounting().getGlobalMemstoreHeapOverhead() >= globalMemStoreLimit;
private FlushType isAboveHighWaterMark() {
return server.getRegionServerAccounting().isAboveHighWaterMark();
}
/**
* Return true if we're above the high watermark
* Return true if we're above the low watermark
*/
private boolean isAboveLowWaterMark() {
return server.getRegionServerAccounting().getGlobalMemstoreSize() + server
.getRegionServerAccounting().getGlobalMemstoreHeapOverhead() >= globalMemStoreLimitLowMark;
private FlushType isAboveLowWaterMark() {
return server.getRegionServerAccounting().isAboveLowWaterMark();
}
@Override
@ -548,9 +532,12 @@ class MemStoreFlusher implements FlushRequester {
}
private void notifyFlushRequest(Region region, boolean emergencyFlush) {
FlushType type = FlushType.NORMAL;
FlushType type = null;
if (emergencyFlush) {
type = isAboveHighWaterMark() ? FlushType.ABOVE_HIGHER_MARK : FlushType.ABOVE_LOWER_MARK;
type = isAboveHighWaterMark();
if (type == null) {
type = isAboveLowWaterMark();
}
}
for (FlushRequestListener listener : flushRequestListeners) {
listener.flushRequested(type, region);
@ -586,7 +573,8 @@ class MemStoreFlusher implements FlushRequester {
*/
public void reclaimMemStoreMemory() {
TraceScope scope = Trace.startSpan("MemStoreFluser.reclaimMemStoreMemory");
if (isAboveHighWaterMark()) {
FlushType flushType = isAboveHighWaterMark();
if (flushType != FlushType.NORMAL) {
if (Trace.isTracing()) {
scope.getSpan().addTimelineAnnotation("Force Flush. We're above high water mark.");
}
@ -596,17 +584,24 @@ class MemStoreFlusher implements FlushRequester {
long startTime = 0;
boolean interrupted = false;
try {
while (isAboveHighWaterMark() && !server.isStopped()) {
flushType = isAboveHighWaterMark();
while (flushType != FlushType.NORMAL && !server.isStopped()) {
if (!blocked) {
startTime = EnvironmentEdgeManager.currentTime();
LOG.info("Blocking updates on " + server.toString() + ": the global memstore size "
+ TraditionalBinaryPrefix.long2String(
server.getRegionServerAccounting().getGlobalMemstoreSize(), "", 1)
+ " + global memstore heap overhead "
+ TraditionalBinaryPrefix.long2String(
server.getRegionServerAccounting().getGlobalMemstoreHeapOverhead(), "", 1)
+ " is >= than blocking "
+ TraditionalBinaryPrefix.long2String(globalMemStoreLimit, "", 1) + " size");
if (!server.getRegionServerAccounting().isOffheap()) {
logMsg("the global memstore size", "global memstore heap overhead");
} else {
switch (flushType) {
case ABOVE_OFFHEAP_HIGHER_MARK:
logMsg("the global offheap memstore size", "global memstore heap overhead");
break;
case ABOVE_ONHEAP_HIGHER_MARK:
logMsg("global memstore heap overhead", "");
break;
default:
break;
}
}
}
blocked = true;
wakeupFlushThread();
@ -620,6 +615,7 @@ class MemStoreFlusher implements FlushRequester {
}
long took = EnvironmentEdgeManager.currentTime() - start;
LOG.warn("Memstore is above high water mark and block " + took + "ms");
flushType = isAboveHighWaterMark();
}
} finally {
if (interrupted) {
@ -635,11 +631,24 @@ class MemStoreFlusher implements FlushRequester {
LOG.info("Unblocking updates for server " + server.toString());
}
}
} else if (isAboveLowWaterMark()) {
} else if (isAboveLowWaterMark() != FlushType.NORMAL) {
wakeupFlushThread();
}
scope.close();
}
private void logMsg(String string1, String string2) {
LOG.info("Blocking updates on " + server.toString() + ": " + string1 + " "
+ TraditionalBinaryPrefix
.long2String(server.getRegionServerAccounting().getGlobalMemstoreDataSize(), "", 1)
+ " + " + string2 + " "
+ TraditionalBinaryPrefix
.long2String(server.getRegionServerAccounting().getGlobalMemstoreHeapOverhead(), "", 1)
+ " is >= than blocking " + TraditionalBinaryPrefix.long2String(
server.getRegionServerAccounting().getGlobalMemstoreLimit(), "", 1)
+ " size");
}
@Override
public String toString() {
return "flush_queue="
@ -685,16 +694,10 @@ class MemStoreFlusher implements FlushRequester {
*/
@Override
public void setGlobalMemstoreLimit(long globalMemStoreSize) {
this.globalMemStoreLimit = globalMemStoreSize;
this.globalMemStoreLimitLowMark =
(long) (this.globalMemStoreLimitLowMarkPercent * globalMemStoreSize);
this.server.getRegionServerAccounting().setGlobalMemstoreLimits(globalMemStoreSize);
reclaimMemStoreMemory();
}
public long getMemoryLimit() {
return this.globalMemStoreLimit;
}
interface FlushQueueEntry extends Delayed {
}
@ -825,5 +828,11 @@ class MemStoreFlusher implements FlushRequester {
}
enum FlushType {
NORMAL, ABOVE_LOWER_MARK, ABOVE_HIGHER_MARK;
NORMAL,
ABOVE_ONHEAP_LOWER_MARK, /* happens due to lower mark breach of onheap memstore settings
An offheap memstore can even breach the onheap_lower_mark*/
ABOVE_ONHEAP_HIGHER_MARK,/* happens due to higher mark breach of onheap memstore settings
An offheap memstore can even breach the onheap_higher_mark*/
ABOVE_OFFHEAP_LOWER_MARK,/* happens due to lower mark breach of offheap memstore settings*/
ABOVE_OFFHEAP_HIGHER_MARK;/*/* happens due to higer mark breach of offheap memstore settings*/
}

1
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsHeapMemoryManager.java
View File

@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.regionserver;
import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import com.google.common.annotations.VisibleForTesting;
/**
* This class is for maintaining the various regionserver's heap memory manager statistics and

170
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerAccounting.java
View File

@ -18,21 +18,28 @@
*/
package org.apache.hadoop.hbase.regionserver;
import java.lang.management.MemoryType;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.io.util.MemorySizeUtil;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.Pair;
/**
* RegionServerAccounting keeps record of some basic real time information about
* the Region Server. Currently, it only keeps record the global memstore size.
* the Region Server. Currently, it keeps record the global memstore size and global memstore heap
* overhead. It also tracks the replay edits per region.
*/
@InterfaceAudience.Private
public class RegionServerAccounting {
// memstore data size
private final AtomicLong globalMemstoreDataSize = new AtomicLong(0);
// memstore heap over head size
private final AtomicLong globalMemstoreHeapOverhead = new AtomicLong(0);
// Store the edits size during replaying WAL. Use this to roll back the
@ -40,17 +47,97 @@ public class RegionServerAccounting {
private final ConcurrentMap<byte[], MemstoreSize> replayEditsPerRegion =
new ConcurrentSkipListMap<byte[], MemstoreSize>(Bytes.BYTES_COMPARATOR);
/**
* @return the global Memstore size in the RegionServer
*/
public long getGlobalMemstoreSize() {
return globalMemstoreDataSize.get();
private final Configuration conf;
private long globalMemStoreLimit;
private final float globalMemStoreLimitLowMarkPercent;
private long globalMemStoreLimitLowMark;
private final MemoryType memType;
private long globalOnHeapMemstoreLimit;
private long globalOnHeapMemstoreLimitLowMark;
public RegionServerAccounting(Configuration conf) {
this.conf = conf;
Pair<Long, MemoryType> globalMemstoreSizePair = MemorySizeUtil.getGlobalMemstoreSize(conf);
this.globalMemStoreLimit = globalMemstoreSizePair.getFirst();
this.memType = globalMemstoreSizePair.getSecond();
this.globalMemStoreLimitLowMarkPercent =
MemorySizeUtil.getGlobalMemStoreHeapLowerMark(conf, this.memType == MemoryType.HEAP);
// When off heap memstore in use we configure the global off heap space for memstore as bytes
// not as % of max memory size. In such case, the lower water mark should be specified using the
// key "hbase.regionserver.global.memstore.size.lower.limit" which says % of the global upper
// bound and defaults to 95%. In on heap case also specifying this way is ideal. But in the past
// we used to take lower bound also as the % of xmx (38% as default). For backward compatibility
// for this deprecated config,we will fall back to read that config when new one is missing.
// Only for on heap case, do this fallback mechanism. For off heap it makes no sense.
// TODO When to get rid of the deprecated config? ie
// "hbase.regionserver.global.memstore.lowerLimit". Can get rid of this boolean passing then.
this.globalMemStoreLimitLowMark =
(long) (this.globalMemStoreLimit * this.globalMemStoreLimitLowMarkPercent);
this.globalOnHeapMemstoreLimit = MemorySizeUtil.getOnheapGlobalMemstoreSize(conf);
this.globalOnHeapMemstoreLimitLowMark =
(long) (this.globalOnHeapMemstoreLimit * this.globalMemStoreLimitLowMarkPercent);
}
public long getGlobalMemstoreLimit() {
return this.globalMemStoreLimit;
}
public long getOnheapGlobalMemstoreLimit() {
return this.globalOnHeapMemstoreLimit;
}
// Called by the tuners.
public void setGlobalMemstoreLimits(long newGlobalMemstoreLimit) {
if (this.memType == MemoryType.HEAP) {
this.globalMemStoreLimit = newGlobalMemstoreLimit;
this.globalMemStoreLimitLowMark =
(long) (this.globalMemStoreLimit * this.globalMemStoreLimitLowMarkPercent);
} else {
this.globalOnHeapMemstoreLimit = newGlobalMemstoreLimit;
this.globalOnHeapMemstoreLimitLowMark =
(long) (this.globalOnHeapMemstoreLimit * this.globalMemStoreLimitLowMarkPercent);
}
}
public boolean isOffheap() {
return this.memType == MemoryType.NON_HEAP;
}
public long getGlobalMemstoreLimitLowMark() {
return this.globalMemStoreLimitLowMark;
}
public float getGlobalMemstoreLimitLowMarkPercent() {
return this.globalMemStoreLimitLowMarkPercent;
}
/**
* @return the global Memstore data size in the RegionServer
*/
public long getGlobalMemstoreDataSize() {
return globalMemstoreDataSize.get();
}
/**
* @return the global memstore heap overhead size in the RegionServer
*/
public long getGlobalMemstoreHeapOverhead() {
return this.globalMemstoreHeapOverhead.get();
}
/**
* @return the global memstore data size and heap overhead size for an onheap memstore
* whereas return the heap overhead size for an offheap memstore
*/
public long getGlobalMemstoreSize() {
if (isOffheap()) {
// get only the heap overhead for offheap memstore
return getGlobalMemstoreHeapOverhead();
} else {
return getGlobalMemstoreDataSize() + getGlobalMemstoreHeapOverhead();
}
}
/**
* @param memStoreSize the Memstore size will be added to
* the global Memstore size
@ -65,6 +152,77 @@ public class RegionServerAccounting {
globalMemstoreHeapOverhead.addAndGet(-memStoreSize.getHeapOverhead());
}
/**
* Return true if we are above the memstore high water mark
* @return the flushtype
*/
public FlushType isAboveHighWaterMark() {
// for onheap memstore we check if the global memstore size and the
// global heap overhead is greater than the global memstore limit
if (memType == MemoryType.HEAP) {
if (getGlobalMemstoreDataSize() + getGlobalMemstoreHeapOverhead() >= globalMemStoreLimit) {
return FlushType.ABOVE_ONHEAP_HIGHER_MARK;
}
} else {
// If the configured memstore is offheap, check for two things
// 1) If the global memstore data size is greater than the configured
// 'hbase.regionserver.offheap.global.memstore.size'
// 2) If the global memstore heap size is greater than the configured onheap
// global memstore limit 'hbase.regionserver.global.memstore.size'.
// We do this to avoid OOME incase of scenarios where the heap is occupied with
// lot of onheap references to the cells in memstore
if (getGlobalMemstoreDataSize() >= globalMemStoreLimit) {
// Indicates that global memstore size is above the configured
// 'hbase.regionserver.offheap.global.memstore.size'
return FlushType.ABOVE_OFFHEAP_HIGHER_MARK;
} else if (getGlobalMemstoreHeapOverhead() >= this.globalOnHeapMemstoreLimit) {
// Indicates that the offheap memstore's heap overhead is greater than the
// configured 'hbase.regionserver.global.memstore.size'.
return FlushType.ABOVE_ONHEAP_HIGHER_MARK;
}
}
return FlushType.NORMAL;
}
/**
* Return true if we're above the low watermark
*/
public FlushType isAboveLowWaterMark() {
// for onheap memstore we check if the global memstore size and the
// global heap overhead is greater than the global memstore lower mark limit
if (memType == MemoryType.HEAP) {
if (getGlobalMemstoreDataSize() + getGlobalMemstoreHeapOverhead() >= globalMemStoreLimitLowMark) {
return FlushType.ABOVE_ONHEAP_LOWER_MARK;
}
} else {
if (getGlobalMemstoreDataSize() >= globalMemStoreLimitLowMark) {
// Indicates that the offheap memstore's data size is greater than the global memstore
// lower limit
return FlushType.ABOVE_OFFHEAP_LOWER_MARK;
} else if (getGlobalMemstoreHeapOverhead() >= globalOnHeapMemstoreLimitLowMark) {
// Indicates that the offheap memstore's heap overhead is greater than the global memstore
// onheap lower limit
return FlushType.ABOVE_ONHEAP_LOWER_MARK;
}
}
return FlushType.NORMAL;
}
/**
* @return the flush pressure of all stores on this regionserver. The value should be greater than
* or equal to 0.0, and any value greater than 1.0 means we enter the emergency state that
* global memstore size already exceeds lower limit.
*/
public double getFlushPressure() {
if (memType == MemoryType.HEAP) {
return (getGlobalMemstoreDataSize() + getGlobalMemstoreHeapOverhead()) * 1.0
/ globalMemStoreLimitLowMark;
} else {
return Math.max(getGlobalMemstoreDataSize() * 1.0 / globalMemStoreLimitLowMark,
getGlobalMemstoreHeapOverhead() * 1.0 / globalOnHeapMemstoreLimitLowMark);
}
}
/***
* Add memStoreSize to replayEditsPerRegion.
*

1
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerServices.java
View File

@ -264,6 +264,7 @@ public interface RegionServerServices extends OnlineRegions, FavoredNodesForRegi
* or equal to 0.0, and any value greater than 1.0 means we enter the emergency state that
* global memstore size already exceeds lower limit.
*/
@Deprecated
double getFlushPressure();
/**

12
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.java
View File

@ -22,8 +22,7 @@ import static org.apache.hadoop.hbase.wal.AbstractFSWALProvider.WAL_FILE_NAME_DE
import java.io.IOException;
import java.io.InterruptedIOException;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryUsage;
import java.lang.management.MemoryType;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
@ -285,9 +284,9 @@ public abstract class AbstractFSWAL<W> implements WAL {
return Long.parseLong(chompedPath);
}
private int calculateMaxLogFiles(float memstoreSizeRatio, long logRollSize) {
MemoryUsage mu = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
return Math.round(mu.getMax() * memstoreSizeRatio * 2 / logRollSize);
private int calculateMaxLogFiles(Configuration conf, long logRollSize) {
Pair<Long, MemoryType> globalMemstoreSize = MemorySizeUtil.getGlobalMemstoreSize(conf);
return (int) ((globalMemstoreSize.getFirst() * 2) / logRollSize);
}
// must be power of 2
@ -386,13 +385,12 @@ public abstract class AbstractFSWAL<W> implements WAL {
this.logrollsize = (long) (blocksize
* conf.getFloat("hbase.regionserver.logroll.multiplier", 0.95f));
float memstoreRatio = MemorySizeUtil.getGlobalMemStoreHeapPercent(conf, false);
boolean maxLogsDefined = conf.get("hbase.regionserver.maxlogs") != null;
if (maxLogsDefined) {
LOG.warn("'hbase.regionserver.maxlogs' was deprecated.");
}
this.maxLogs = conf.getInt("hbase.regionserver.maxlogs",
Math.max(32, calculateMaxLogFiles(memstoreRatio, logrollsize)));
Math.max(32, calculateMaxLogFiles(conf, logrollsize)));
LOG.info("WAL configuration: blocksize=" + StringUtils.byteDesc(blocksize) + ", rollsize="
+ StringUtils.byteDesc(this.logrollsize) + ", prefix=" + this.walFilePrefix + ", suffix="

12
hbase-server/src/test/java/org/apache/hadoop/hbase/TestGlobalMemStoreSize.java
View File

@ -92,7 +92,7 @@ public class TestGlobalMemStoreSize {
server.getFromOnlineRegions(regionInfo.getEncodedName()).
getMemstoreSize();
}
assertEquals(server.getRegionServerAccounting().getGlobalMemstoreSize(),
assertEquals(server.getRegionServerAccounting().getGlobalMemstoreDataSize(),
globalMemStoreSize);
}
@ -100,7 +100,7 @@ public class TestGlobalMemStoreSize {
int i = 0;
for (HRegionServer server : getOnlineRegionServers()) {
LOG.info("Starting flushes on " + server.getServerName() +
", size=" + server.getRegionServerAccounting().getGlobalMemstoreSize());
", size=" + server.getRegionServerAccounting().getGlobalMemstoreDataSize());
for (HRegionInfo regionInfo :
ProtobufUtil.getOnlineRegions(null, server.getRSRpcServices())) {
@ -110,11 +110,11 @@ public class TestGlobalMemStoreSize {
LOG.info("Post flush on " + server.getServerName());
long now = System.currentTimeMillis();
long timeout = now + 1000;
while(server.getRegionServerAccounting().getGlobalMemstoreSize() != 0 &&
while(server.getRegionServerAccounting().getGlobalMemstoreDataSize() != 0 &&
timeout < System.currentTimeMillis()) {
Threads.sleep(10);
}
long size = server.getRegionServerAccounting().getGlobalMemstoreSize();
long size = server.getRegionServerAccounting().getGlobalMemstoreDataSize();
if (size > 0) {
// If size > 0, see if its because the meta region got edits while
// our test was running....
@ -131,7 +131,7 @@ public class TestGlobalMemStoreSize {
}
}
}
size = server.getRegionServerAccounting().getGlobalMemstoreSize();
size = server.getRegionServerAccounting().getGlobalMemstoreDataSize();
assertEquals("Server=" + server.getServerName() + ", i=" + i++, 0, size);
}
@ -149,7 +149,7 @@ public class TestGlobalMemStoreSize {
throws IOException {
LOG.info("Flush " + r.toString() + " on " + server.getServerName() +
", " + r.flush(true) + ", size=" +
server.getRegionServerAccounting().getGlobalMemstoreSize());
server.getRegionServerAccounting().getGlobalMemstoreDataSize());
}
private List<HRegionServer> getOnlineRegionServers() {

6
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java
View File

@ -170,7 +170,7 @@ public class TestHRegionReplayEvents {
rss = mock(RegionServerServices.class);
when(rss.getServerName()).thenReturn(ServerName.valueOf("foo", 1, 1));
when(rss.getConfiguration()).thenReturn(CONF);
when(rss.getRegionServerAccounting()).thenReturn(new RegionServerAccounting());
when(rss.getRegionServerAccounting()).thenReturn(new RegionServerAccounting(CONF));
String string = org.apache.hadoop.hbase.executor.EventType.RS_COMPACTED_FILES_DISCHARGER
.toString();
ExecutorService es = new ExecutorService(string);
@ -281,12 +281,12 @@ public class TestHRegionReplayEvents {
}
}
assertTrue(rss.getRegionServerAccounting().getGlobalMemstoreSize() > 0);
assertTrue(rss.getRegionServerAccounting().getGlobalMemstoreDataSize() > 0);
// now close the region which should not cause hold because of un-committed flush
secondaryRegion.close();
// verify that the memstore size is back to what it was
assertEquals(0, rss.getRegionServerAccounting().getGlobalMemstoreSize());
assertEquals(0, rss.getRegionServerAccounting().getGlobalMemstoreDataSize());
}
static int replayEdit(HRegion region, WAL.Entry entry) throws IOException {

281
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHeapMemoryManager.java
View File

@ -24,6 +24,7 @@ import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryType;
import java.util.Iterator;
import org.apache.hadoop.conf.Configuration;
@ -65,8 +66,10 @@ public class TestHeapMemoryManager {
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_KEY, 0.02f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.03f);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
HeapMemoryManager manager = new HeapMemoryManager(new BlockCacheStub(0),
new MemstoreFlusherStub(0), new RegionServerStub(conf), new RegionServerAccountingStub());
new MemstoreFlusherStub(0), new RegionServerStub(conf),
regionServerAccounting);
assertFalse(manager.isTunerOn());
}
@ -76,21 +79,24 @@ public class TestHeapMemoryManager {
conf.setFloat(HConstants.HFILE_BLOCK_CACHE_SIZE_KEY, 0.02f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.03f);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
HeapMemoryManager manager = new HeapMemoryManager(new BlockCacheStub(0),
new MemstoreFlusherStub(0), new RegionServerStub(conf), new RegionServerAccountingStub());
new MemstoreFlusherStub(0), new RegionServerStub(conf),
regionServerAccounting);
assertFalse(manager.isTunerOn());
}
@Test
public void testWhenMemstoreAndBlockCacheMaxMinChecksFails() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub(0);
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub(0);
Configuration conf = HBaseConfiguration.create();
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.06f);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub(0);
try {
new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), regionServerAccounting);
fail();
} catch (RuntimeException e) {
}
@ -99,7 +105,7 @@ public class TestHeapMemoryManager {
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MAX_RANGE_KEY, 0.7f);
try {
new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), regionServerAccounting);
fail();
} catch (RuntimeException e) {
}
@ -107,18 +113,19 @@ public class TestHeapMemoryManager {
@Test
public void testWhenClusterIsWriteHeavyWithEmptyMemstore() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub();
// Empty block cache and memstore
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize(0);
Configuration conf = HBaseConfiguration.create();
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MAX_RANGE_KEY, 0.7f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
MemstoreFlusherStub memStoreFlusher =
new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Empty block cache and memstore
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize(0);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
@ -127,11 +134,11 @@ public class TestHeapMemoryManager {
long oldBlockCacheSize = blockCache.maxSize;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
memStoreFlusher.flushType = FlushType.ABOVE_HIGHER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_HIGHER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.flushType = FlushType.ABOVE_LOWER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_LOWER_MARK;
memStoreFlusher.requestFlush(null, false);
// Allow the tuner to run once and do necessary memory up
Thread.sleep(1500);
@ -140,14 +147,114 @@ public class TestHeapMemoryManager {
assertEquals(oldBlockCacheSize, blockCache.maxSize);
}
@Test
public void testHeapMemoryManagerWhenOffheapFlushesHappenUnderReadHeavyCase() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
Configuration conf = HBaseConfiguration.create();
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_LOWER_LIMIT_KEY, 0.7f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MAX_RANGE_KEY, 0.7f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf, true);
MemstoreFlusherStub memStoreFlusher =
new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Empty memstore and but nearly filled block cache
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
regionServerAccounting.setTestMemstoreSize(0);
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), regionServerAccounting);
long oldMemstoreHeapSize = memStoreFlusher.memstoreSize;
long oldBlockCacheSize = blockCache.maxSize;
float maxStepValue = DefaultHeapMemoryTuner.DEFAULT_MIN_STEP_VALUE;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
blockCache.evictBlock(null);
blockCache.evictBlock(null);
blockCache.evictBlock(null);
// do some offheap flushes also. So there should be decrease in memstore but
// not as that when we don't have offheap flushes
memStoreFlusher.flushType = FlushType.ABOVE_OFFHEAP_HIGHER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
// Allow the tuner to run once and do necessary memory up
waitForTune(memStoreFlusher, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(-maxStepValue, oldMemstoreHeapSize, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(maxStepValue, oldBlockCacheSize, blockCache.maxSize);
oldMemstoreHeapSize = memStoreFlusher.memstoreSize;
oldBlockCacheSize = blockCache.maxSize;
// Do some more evictions before the next run of HeapMemoryTuner
blockCache.evictBlock(null);
// Allow the tuner to run once and do necessary memory up
waitForTune(memStoreFlusher, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(-maxStepValue, oldMemstoreHeapSize, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(maxStepValue, oldBlockCacheSize, blockCache.maxSize);
}
@Test
public void testHeapMemoryManagerWithOffheapMemstoreAndMixedWorkload() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
Configuration conf = HBaseConfiguration.create();
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_LOWER_LIMIT_KEY, 0.7f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MAX_RANGE_KEY, 0.7f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf, true);
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Empty memstore and but nearly filled block cache
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), regionServerAccounting);
long oldMemstoreHeapSize = memStoreFlusher.memstoreSize;
long oldBlockCacheSize = blockCache.maxSize;
float maxStepValue = DefaultHeapMemoryTuner.DEFAULT_MIN_STEP_VALUE;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
blockCache.evictBlock(null);
blockCache.evictBlock(null);
blockCache.evictBlock(null);
// do some offheap flushes also. So there should be decrease in memstore but
// not as that when we don't have offheap flushes
memStoreFlusher.flushType = FlushType.ABOVE_OFFHEAP_HIGHER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
// Allow the tuner to run once and do necessary memory up
waitForTune(memStoreFlusher, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(-maxStepValue, oldMemstoreHeapSize, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(maxStepValue, oldBlockCacheSize, blockCache.maxSize);
oldMemstoreHeapSize = memStoreFlusher.memstoreSize;
oldBlockCacheSize = blockCache.maxSize;
// change memstore size
// regionServerAccounting.setTestMemstoreSize((long)(maxHeapSize * 0.4 * 0.8));
// The memstore size would have decreased. Now again do some flushes and ensure the
// flushes are due to onheap overhead. This should once again call for increase in
// memstore size but that increase should be to the safe size
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_HIGHER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
// Allow the tuner to run once and do necessary memory up
waitForTune(memStoreFlusher, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(maxStepValue, oldMemstoreHeapSize, memStoreFlusher.memstoreSize);
assertHeapSpaceDelta(-maxStepValue, oldBlockCacheSize, blockCache.maxSize);
}
@Test
public void testWhenClusterIsReadHeavyWithEmptyBlockCache() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub();
// Empty block cache and memstore
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize(0);
Configuration conf = HBaseConfiguration.create();
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
@ -155,6 +262,11 @@ public class TestHeapMemoryManager {
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Empty block cache and memstore
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize(0);
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), regionServerAccounting);
@ -175,11 +287,6 @@ public class TestHeapMemoryManager {
@Test
public void testWhenClusterIsWriteHeavy() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub();
// Empty block cache and but nearly filled memstore
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
Configuration conf = HBaseConfiguration.create();
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
@ -187,6 +294,12 @@ public class TestHeapMemoryManager {
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
MemstoreFlusherStub memStoreFlusher =
new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Empty block cache and but nearly filled memstore
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), regionServerAccounting);
@ -194,7 +307,7 @@ public class TestHeapMemoryManager {
long oldBlockCacheSize = blockCache.maxSize;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
memStoreFlusher.flushType = FlushType.ABOVE_LOWER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_LOWER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
@ -208,7 +321,7 @@ public class TestHeapMemoryManager {
oldMemstoreHeapSize = memStoreFlusher.memstoreSize;
oldBlockCacheSize = blockCache.maxSize;
// Do some more flushes before the next run of HeapMemoryTuner
memStoreFlusher.flushType = FlushType.ABOVE_LOWER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_LOWER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
// Allow the tuner to run once and do necessary memory up
@ -219,14 +332,45 @@ public class TestHeapMemoryManager {
blockCache.maxSize);
}
@Test
public void testWhenClusterIsWriteHeavyWithOffheapMemstore() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
Configuration conf = HBaseConfiguration.create();
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MAX_RANGE_KEY, 0.7f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
MemstoreFlusherStub memStoreFlusher =
new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Empty block cache and but nearly filled memstore
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), regionServerAccounting);
long oldMemstoreHeapSize = memStoreFlusher.memstoreSize;
long oldBlockCacheSize = blockCache.maxSize;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
// this should not change anything with onheap memstore
memStoreFlusher.flushType = FlushType.ABOVE_OFFHEAP_HIGHER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
// Allow the tuner to run once and do necessary memory up
Thread.sleep(1500);
// No changes should be made by tuner as we already have lot of empty space
assertEquals(oldMemstoreHeapSize, memStoreFlusher.memstoreSize);
assertEquals(oldBlockCacheSize, blockCache.maxSize);
}
@Test
public void testWhenClusterIsReadHeavy() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub();
// Empty memstore and but nearly filled block cache
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
regionServerAccounting.setTestMemstoreSize(0);
Configuration conf = HBaseConfiguration.create();
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_LOWER_LIMIT_KEY, 0.7f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
@ -235,9 +379,15 @@ public class TestHeapMemoryManager {
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
MemstoreFlusherStub memStoreFlusher =
new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Empty memstore and but nearly filled block cache
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
regionServerAccounting.setTestMemstoreSize(0);
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), new RegionServerAccountingStub(conf));
long oldMemstoreHeapSize = memStoreFlusher.memstoreSize;
long oldBlockCacheSize = blockCache.maxSize;
long oldMemstoreLowerMarkSize = 7 * oldMemstoreHeapSize / 10;
@ -272,12 +422,6 @@ public class TestHeapMemoryManager {
@Test
public void testWhenClusterIsHavingMoreWritesThanReads() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub();
// Both memstore and block cache are nearly filled
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
Configuration conf = HBaseConfiguration.create();
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
@ -285,6 +429,13 @@ public class TestHeapMemoryManager {
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
MemstoreFlusherStub memStoreFlusher =
new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
// Both memstore and block cache are nearly filled
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), regionServerAccounting);
@ -292,7 +443,7 @@ public class TestHeapMemoryManager {
long oldBlockCacheSize = blockCache.maxSize;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
memStoreFlusher.flushType = FlushType.ABOVE_LOWER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_LOWER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
@ -303,7 +454,7 @@ public class TestHeapMemoryManager {
assertEquals(oldMemstoreHeapSize, memStoreFlusher.memstoreSize);
assertEquals(oldBlockCacheSize, blockCache.maxSize);
// Do some more flushes before the next run of HeapMemoryTuner
memStoreFlusher.flushType = FlushType.ABOVE_LOWER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_LOWER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
@ -319,11 +470,6 @@ public class TestHeapMemoryManager {
public void testBlockedFlushesIncreaseMemstoreInSteadyState() throws Exception {
BlockCacheStub blockCache = new BlockCacheStub((long) (maxHeapSize * 0.4));
MemstoreFlusherStub memStoreFlusher = new MemstoreFlusherStub((long) (maxHeapSize * 0.4));
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub();
// Both memstore and block cache are nearly filled
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
Configuration conf = HBaseConfiguration.create();
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.75f);
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MIN_RANGE_KEY, 0.10f);
@ -331,6 +477,11 @@ public class TestHeapMemoryManager {
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MIN_RANGE_KEY, 0.05f);
conf.setLong(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_PERIOD, 1000);
conf.setInt(DefaultHeapMemoryTuner.NUM_PERIODS_TO_IGNORE, 0);
RegionServerAccountingStub regionServerAccounting = new RegionServerAccountingStub(conf);
// Both memstore and block cache are nearly filled
blockCache.setTestBlockSize(0);
regionServerAccounting.setTestMemstoreSize((long) (maxHeapSize * 0.4 * 0.8));
blockCache.setTestBlockSize((long) (maxHeapSize * 0.4 * 0.8));
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), regionServerAccounting);
@ -338,7 +489,7 @@ public class TestHeapMemoryManager {
long oldBlockCacheSize = blockCache.maxSize;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
memStoreFlusher.flushType = FlushType.ABOVE_LOWER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_LOWER_MARK;
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
memStoreFlusher.requestFlush(null, false);
@ -350,7 +501,7 @@ public class TestHeapMemoryManager {
assertEquals(oldMemstoreHeapSize, memStoreFlusher.memstoreSize);
assertEquals(oldBlockCacheSize, blockCache.maxSize);
// Flushes that block updates
memStoreFlusher.flushType = FlushType.ABOVE_HIGHER_MARK;
memStoreFlusher.flushType = FlushType.ABOVE_ONHEAP_HIGHER_MARK;
memStoreFlusher.requestFlush(null, false);
blockCache.evictBlock(null);
blockCache.evictBlock(null);
@ -379,7 +530,7 @@ public class TestHeapMemoryManager {
HeapMemoryTuner.class);
// Let the system start with default values for memstore heap and block cache size.
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), new RegionServerAccountingStub(conf));
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
// Now we wants to be in write mode. Set bigger memstore size from CustomHeapMemoryTuner
@ -412,7 +563,7 @@ public class TestHeapMemoryManager {
conf.setClass(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_CLASS, CustomHeapMemoryTuner.class,
HeapMemoryTuner.class);
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), new RegionServerAccountingStub(conf));
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
heapMemoryManager.start(choreService);
CustomHeapMemoryTuner.memstoreSize = 0.78f;
@ -438,7 +589,7 @@ public class TestHeapMemoryManager {
conf.setClass(HeapMemoryManager.HBASE_RS_HEAP_MEMORY_TUNER_CLASS, CustomHeapMemoryTuner.class,
HeapMemoryTuner.class);
HeapMemoryManager heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), new RegionServerAccountingStub(conf));
long oldMemstoreSize = memStoreFlusher.memstoreSize;
long oldBlockCacheSize = blockCache.maxSize;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
@ -473,7 +624,7 @@ public class TestHeapMemoryManager {
try {
heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), new RegionServerAccountingStub(conf));
fail("Should have failed as the collective heap memory need is above 80%");
} catch (Exception e) {
}
@ -482,7 +633,7 @@ public class TestHeapMemoryManager {
conf.setFloat(HeapMemoryManager.MEMSTORE_SIZE_MAX_RANGE_KEY, 0.6f);
conf.setFloat(HeapMemoryManager.BLOCK_CACHE_SIZE_MAX_RANGE_KEY, 0.6f);
heapMemoryManager = new HeapMemoryManager(blockCache, memStoreFlusher,
new RegionServerStub(conf), new RegionServerAccountingStub());
new RegionServerStub(conf), new RegionServerAccountingStub(conf));
long oldMemstoreSize = memStoreFlusher.memstoreSize;
long oldBlockCacheSize = blockCache.maxSize;
final ChoreService choreService = new ChoreService("TEST_SERVER_NAME");
@ -508,7 +659,8 @@ public class TestHeapMemoryManager {
assertEquals(expected, currentHeapSpace);
}
private void assertHeapSpaceDelta(double expectedDeltaPercent, long oldHeapSpace, long newHeapSpace) {
private void assertHeapSpaceDelta(double expectedDeltaPercent, long oldHeapSpace,
long newHeapSpace) {
double expctedMinDelta = (double) (this.maxHeapSize * expectedDeltaPercent);
// Tolerable error
double error = 0.95;
@ -757,11 +909,34 @@ public class TestHeapMemoryManager {
}
private static class RegionServerAccountingStub extends RegionServerAccounting {
boolean offheap;
public RegionServerAccountingStub(Configuration conf) {
super(conf);
}
public RegionServerAccountingStub(Configuration conf, boolean offheap) {
super(conf);
this.offheap = offheap;
}
private long testMemstoreSize = 0;
@Override
public long getGlobalMemstoreSize() {
public long getGlobalMemstoreDataSize() {
return testMemstoreSize;
}
@Override
public long getGlobalMemstoreHeapOverhead() {
return testMemstoreSize;
}
@Override
public boolean isOffheap() {
return offheap;
}
public void setTestMemstoreSize(long testMemstoreSize) {
this.testMemstoreSize = testMemstoreSize;
}

120
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerAccounting.java Normal file
View File

@ -0,0 +1,120 @@
/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.regionserver;
import static org.junit.Assert.assertEquals;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.io.util.MemorySizeUtil;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category(SmallTests.class)
public class TestRegionServerAccounting {
@Test
public void testOnheapMemstoreHigherWaterMarkLimits() {
Configuration conf = HBaseConfiguration.create();
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_KEY, 0.2f);
// try for default cases
RegionServerAccounting regionServerAccounting = new RegionServerAccounting(conf);
MemstoreSize memstoreSize =
new MemstoreSize((long) (3l * 1024l * 1024l * 1024l), (long) (1l * 1024l * 1024l * 1024l));
regionServerAccounting.incGlobalMemstoreSize(memstoreSize);
assertEquals(FlushType.ABOVE_ONHEAP_HIGHER_MARK,
regionServerAccounting.isAboveHighWaterMark());
}
@Test
public void testOnheapMemstoreLowerWaterMarkLimits() {
Configuration conf = HBaseConfiguration.create();
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_KEY, 0.2f);
// try for default cases
RegionServerAccounting regionServerAccounting = new RegionServerAccounting(conf);
MemstoreSize memstoreSize =
new MemstoreSize((long) (3l * 1024l * 1024l * 1024l), (long) (1l * 1024l * 1024l * 1024l));
regionServerAccounting.incGlobalMemstoreSize(memstoreSize);
assertEquals(FlushType.ABOVE_ONHEAP_LOWER_MARK,
regionServerAccounting.isAboveLowWaterMark());
}
@Test
public void testOffheapMemstoreHigherWaterMarkLimitsDueToDataSize() {
Configuration conf = HBaseConfiguration.create();
// setting 1G as offheap data size
conf.setLong(MemorySizeUtil.OFFHEAP_MEMSTORE_SIZE_KEY, (1l * 1024l));
// try for default cases
RegionServerAccounting regionServerAccounting = new RegionServerAccounting(conf);
// this will breach offheap limit as data size is higher and not due to heap size
MemstoreSize memstoreSize =
new MemstoreSize((long) (3l * 1024l * 1024l * 1024l), (long) (1l * 1024l * 1024l * 1024l));
regionServerAccounting.incGlobalMemstoreSize(memstoreSize);
assertEquals(FlushType.ABOVE_OFFHEAP_HIGHER_MARK,
regionServerAccounting.isAboveHighWaterMark());
}
@Test
public void testOffheapMemstoreHigherWaterMarkLimitsDueToHeapSize() {
Configuration conf = HBaseConfiguration.create();
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_KEY, 0.2f);
// setting 1G as offheap data size
conf.setLong(MemorySizeUtil.OFFHEAP_MEMSTORE_SIZE_KEY, (1l * 1024l));
// try for default cases
RegionServerAccounting regionServerAccounting = new RegionServerAccounting(conf);
// this will breach higher limit as heap size is higher and not due to offheap size
MemstoreSize memstoreSize =
new MemstoreSize((long) (3l * 1024l * 1024l), (long) (2l * 1024l * 1024l * 1024l));
regionServerAccounting.incGlobalMemstoreSize(memstoreSize);
assertEquals(FlushType.ABOVE_ONHEAP_HIGHER_MARK,
regionServerAccounting.isAboveHighWaterMark());
}
@Test
public void testOffheapMemstoreLowerWaterMarkLimitsDueToDataSize() {
Configuration conf = HBaseConfiguration.create();
// setting 1G as offheap data size
conf.setLong(MemorySizeUtil.OFFHEAP_MEMSTORE_SIZE_KEY, (1l * 1024l));
// try for default cases
RegionServerAccounting regionServerAccounting = new RegionServerAccounting(conf);
// this will breach offheap limit as data size is higher and not due to heap size
MemstoreSize memstoreSize =
new MemstoreSize((long) (3l * 1024l * 1024l * 1024l), (long) (1l * 1024l * 1024l * 1024l));
regionServerAccounting.incGlobalMemstoreSize(memstoreSize);
assertEquals(FlushType.ABOVE_OFFHEAP_LOWER_MARK,
regionServerAccounting.isAboveLowWaterMark());
}
@Test
public void testOffheapMemstoreLowerWaterMarkLimitsDueToHeapSize() {
Configuration conf = HBaseConfiguration.create();
conf.setFloat(MemorySizeUtil.MEMSTORE_SIZE_KEY, 0.2f);
// setting 1G as offheap data size
conf.setLong(MemorySizeUtil.OFFHEAP_MEMSTORE_SIZE_KEY, (1l * 1024l));
// try for default cases
RegionServerAccounting regionServerAccounting = new RegionServerAccounting(conf);
// this will breach higher limit as heap size is higher and not due to offheap size
MemstoreSize memstoreSize =
new MemstoreSize((long) (3l * 1024l * 1024l), (long) (2l * 1024l * 1024l * 1024l));
regionServerAccounting.incGlobalMemstoreSize(memstoreSize);
assertEquals(FlushType.ABOVE_ONHEAP_LOWER_MARK,
regionServerAccounting.isAboveLowWaterMark());
}
}