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HBASE-26368 Fix checkstyle issues for HRegionServer for branch-2 (#3781) (#3764) 

Signed-off-by: Viraj Jasani <vjasani@apache.org>
This commit is contained in:
Sourabh Dhanotia 2021-10-22 12:51:29 +05:30 committed by GitHub
parent 644f820c6c
commit eea2ea8576
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 81 additions and 50 deletions
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131
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
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@ -477,8 +477,8 @@ public class HRegionServer extends Thread implements
protected String useThisHostnameInstead;
/**
* @deprecated since 2.4.0 and will be removed in 4.0.0.
* Use {@link HRegionServer#UNSAFE_RS_HOSTNAME_DISABLE_MASTER_REVERSEDNS_KEY} instead.
* @deprecated since 2.4.0 and will be removed in 4.0.0. Use
* {@link HRegionServer#UNSAFE_RS_HOSTNAME_DISABLE_MASTER_REVERSEDNS_KEY} instead.
* @see <a href="https://issues.apache.org/jira/browse/HBASE-24667">HBASE-24667</a>
*/
@Deprecated
@ -727,9 +727,10 @@ public class HRegionServer extends Thread implements
String hostname = conf.get(UNSAFE_RS_HOSTNAME_KEY);
if (conf.getBoolean(UNSAFE_RS_HOSTNAME_DISABLE_MASTER_REVERSEDNS_KEY, false)) {
if (!StringUtils.isBlank(hostname)) {
String msg = UNSAFE_RS_HOSTNAME_DISABLE_MASTER_REVERSEDNS_KEY + " and " + UNSAFE_RS_HOSTNAME_KEY +
" are mutually exclusive. Do not set " + UNSAFE_RS_HOSTNAME_DISABLE_MASTER_REVERSEDNS_KEY +
" to true while " + UNSAFE_RS_HOSTNAME_KEY + " is used";
String msg = UNSAFE_RS_HOSTNAME_DISABLE_MASTER_REVERSEDNS_KEY + " and " +
UNSAFE_RS_HOSTNAME_KEY + " are mutually exclusive. Do not set " +
UNSAFE_RS_HOSTNAME_DISABLE_MASTER_REVERSEDNS_KEY + " to true while " +
UNSAFE_RS_HOSTNAME_KEY + " is used";
throw new IOException(msg);
} else {
return rpcServices.isa.getHostName();
@ -862,7 +863,8 @@ public class HRegionServer extends Thread implements
coprocessorServiceHandlers.put(serviceName, instance);
if (LOG.isDebugEnabled()) {
LOG.debug("Registered regionserver coprocessor executorService: executorService=" + serviceName);
LOG.debug("Registered regionserver coprocessor executorService: executorService=" +
serviceName);
}
return true;
}
@ -877,13 +879,15 @@ public class HRegionServer extends Thread implements
/**
* Run test on configured codecs to make sure supporting libs are in place.
* @param c
* @throws IOException
* @param c configuration object
* @throws IOException if compression test fails for any regionserver codec
*/
private static void checkCodecs(final Configuration c) throws IOException {
// check to see if the codec list is available:
String [] codecs = c.getStrings(REGIONSERVER_CODEC, (String[])null);
if (codecs == null) return;
if (codecs == null) {
return;
}
for (String codec : codecs) {
if (!CompressionTest.testCompression(codec)) {
throw new IOException("Compression codec " + codec +
@ -1138,9 +1142,15 @@ public class HRegionServer extends Thread implements
// Send interrupts to wake up threads if sleeping so they notice shutdown.
// TODO: Should we check they are alive? If OOME could have exited already
if (this.hMemManager != null) this.hMemManager.stop();
if (this.cacheFlusher != null) this.cacheFlusher.interruptIfNecessary();
if (this.compactSplitThread != null) this.compactSplitThread.interruptIfNecessary();
if (this.hMemManager != null) {
this.hMemManager.stop();
}
if (this.cacheFlusher != null) {
this.cacheFlusher.interruptIfNecessary();
}
if (this.compactSplitThread != null) {
this.compactSplitThread.interruptIfNecessary();
}
// Stop the snapshot and other procedure handlers, forcefully killing all running tasks
if (rspmHost != null) {
@ -1247,7 +1257,9 @@ public class HRegionServer extends Thread implements
}
private boolean areAllUserRegionsOffline() {
if (getNumberOfOnlineRegions() > 2) return false;
if (getNumberOfOnlineRegions() > 2) {
return false;
}
boolean allUserRegionsOffline = true;
for (Map.Entry<String, HRegion> e: this.onlineRegions.entrySet()) {
if (!e.getValue().getRegionInfo().isMetaRegion()) {
@ -1469,7 +1481,9 @@ public class HRegionServer extends Thread implements
private String getOnlineRegionsAsPrintableString() {
StringBuilder sb = new StringBuilder();
for (Region r: this.onlineRegions.values()) {
if (sb.length() > 0) sb.append(", ");
if (sb.length() > 0) {
sb.append(", ");
}
sb.append(r.getRegionInfo().getEncodedName());
}
return sb.toString();
@ -1577,7 +1591,7 @@ public class HRegionServer extends Thread implements
* @param c Extra configuration.
*/
protected void handleReportForDutyResponse(final RegionServerStartupResponse c)
throws IOException {
throws IOException {
try {
boolean updateRootDir = false;
for (NameStringPair e : c.getMapEntriesList()) {
@ -1873,7 +1887,7 @@ public class HRegionServer extends Thread implements
this.instance.compactSplitThread.requestCompaction(hr, s,
getName() + " requests major compaction; use default priority",
Store.NO_PRIORITY,
CompactionLifeCycleTracker.DUMMY, null);
CompactionLifeCycleTracker.DUMMY, null);
} else {
this.instance.compactSplitThread.requestCompaction(hr, s,
getName() + " requests major compaction; use configured priority",
@ -1908,7 +1922,9 @@ public class HRegionServer extends Thread implements
protected void chore() {
final StringBuilder whyFlush = new StringBuilder();
for (HRegion r : this.server.onlineRegions.values()) {
if (r == null) continue;
if (r == null) {
continue;
}
if (r.shouldFlush(whyFlush)) {
FlushRequester requester = server.getFlushRequester();
if (requester != null) {
@ -2012,7 +2028,7 @@ public class HRegionServer extends Thread implements
// Health checker thread.
if (isHealthCheckerConfigured()) {
int sleepTime = this.conf.getInt(HConstants.HEALTH_CHORE_WAKE_FREQ,
HConstants.DEFAULT_THREAD_WAKE_FREQUENCY);
HConstants.DEFAULT_THREAD_WAKE_FREQUENCY);
healthCheckChore = new HealthCheckChore(sleepTime, this, getConfiguration());
}
@ -2502,7 +2518,9 @@ public class HRegionServer extends Thread implements
" after " + pauseTime + "ms delay (Master is coming online...).":
" immediately."),
ioe);
if (pause) Threads.sleep(pauseTime);
if (pause) {
Threads.sleep(pauseTime);
}
tries++;
if (rssStub == rss) {
rssStub = null;
@ -2612,7 +2630,7 @@ public class HRegionServer extends Thread implements
/**
* Sets the abort state if not already set.
* @return True if abortRequested set to True successfully, false if an abort is already in
* progress.
* progress.
*/
protected boolean setAbortRequested() {
return abortRequested.compareAndSet(false, true);
@ -2689,7 +2707,9 @@ public class HRegionServer extends Thread implements
if (this.compactSplitThread != null) {
this.compactSplitThread.join();
}
if (this.executorService != null) this.executorService.shutdown();
if (this.executorService != null) {
this.executorService.shutdown();
}
if (this.replicationSourceHandler != null &&
this.replicationSourceHandler == this.replicationSinkHandler) {
this.replicationSourceHandler.stopReplicationService();
@ -2704,8 +2724,7 @@ public class HRegionServer extends Thread implements
}
/**
* @return Return the object that implements the replication
* source executorService.
* @return Return the object that implements the replication source executorService.
*/
@InterfaceAudience.Private
public ReplicationSourceService getReplicationSourceService() {
@ -2714,7 +2733,7 @@ public class HRegionServer extends Thread implements
/**
* @return Return the object that implements the replication
* sink executorService.
* sink executorService.
*/
ReplicationSinkService getReplicationSinkService() {
return replicationSinkHandler;
@ -2810,8 +2829,8 @@ public class HRegionServer extends Thread implements
}
/**
* @return True if we should break loop because cluster is going down or
* this server has been stopped or hdfs has gone bad.
* @return True if we should break loop because cluster is going down or this server has been
* stopped or hdfs has gone bad.
*/
private boolean keepLooping() {
return !this.stopped && isClusterUp();
@ -2825,10 +2844,14 @@ public class HRegionServer extends Thread implements
* @throws IOException
*/
private RegionServerStartupResponse reportForDuty() throws IOException {
if (this.masterless) return RegionServerStartupResponse.getDefaultInstance();
if (this.masterless) {
return RegionServerStartupResponse.getDefaultInstance();
}
ServerName masterServerName = createRegionServerStatusStub(true);
RegionServerStatusService.BlockingInterface rss = rssStub;
if (masterServerName == null || rss == null) return null;
if (masterServerName == null || rss == null) {
return null;
}
RegionServerStartupResponse result = null;
try {
rpcServices.requestCount.reset();
@ -2906,12 +2929,16 @@ public class HRegionServer extends Thread implements
if (hri.isMetaRegion()) {
meta = e.getValue();
}
if (meta != null) break;
if (meta != null) {
break;
}
}
} finally {
this.onlineRegionsLock.writeLock().unlock();
}
if (meta != null) closeRegionIgnoreErrors(meta.getRegionInfo(), abort);
if (meta != null) {
closeRegionIgnoreErrors(meta.getRegionInfo(), abort);
}
}
/**
@ -3218,17 +3245,17 @@ public class HRegionServer extends Thread implements
*/
@Override
public List<HRegion> getRegions(TableName tableName) {
List<HRegion> tableRegions = new ArrayList<>();
synchronized (this.onlineRegions) {
for (HRegion region: this.onlineRegions.values()) {
RegionInfo regionInfo = region.getRegionInfo();
if(regionInfo.getTable().equals(tableName)) {
tableRegions.add(region);
}
}
}
return tableRegions;
}
List<HRegion> tableRegions = new ArrayList<>();
synchronized (this.onlineRegions) {
for (HRegion region: this.onlineRegions.values()) {
RegionInfo regionInfo = region.getRegionInfo();
if(regionInfo.getTable().equals(tableName)) {
tableRegions.add(region);
}
}
}
return tableRegions;
}
@Override
public List<HRegion> getRegions() {
@ -3402,13 +3429,16 @@ public class HRegionServer extends Thread implements
if (closeSeqNum == HConstants.NO_SEQNUM) {
// No edits in WAL for this region; get the sequence number when the region was opened.
closeSeqNum = r.getOpenSeqNum();
if (closeSeqNum == HConstants.NO_SEQNUM) closeSeqNum = 0;
if (closeSeqNum == HConstants.NO_SEQNUM) {
closeSeqNum = 0;
}
}
boolean selfMove = ServerName.isSameAddress(destination, this.getServerName());
addToMovedRegions(r.getRegionInfo().getEncodedName(), destination, closeSeqNum, selfMove);
if (selfMove) {
this.regionServerAccounting.getRetainedRegionRWRequestsCnt().put(r.getRegionInfo().getEncodedName()
, new Pair<>(r.getReadRequestsCount(), r.getWriteRequestsCount()));
this.regionServerAccounting.getRetainedRegionRWRequestsCnt().put(
r.getRegionInfo().getEncodedName(),
new Pair<>(r.getReadRequestsCount(), r.getWriteRequestsCount()));
}
}
this.regionFavoredNodesMap.remove(r.getRegionInfo().getEncodedName());
@ -3523,7 +3553,7 @@ public class HRegionServer extends Thread implements
* Return the favored nodes for a region given its encoded name. Look at the
* comment around {@link #regionFavoredNodesMap} on why we convert to InetSocketAddress[]
* here.
* @param encodedRegionName
* @param encodedRegionName the encoded region name.
* @return array of favored locations
*/
@Override
@ -3543,7 +3573,7 @@ public class HRegionServer extends Thread implements
MovedRegionInfo(ServerName serverName, long closeSeqNum) {
this.serverName = serverName;
this.seqNum = closeSeqNum;
}
}
public ServerName getServerName() {
return serverName;
@ -3560,7 +3590,8 @@ public class HRegionServer extends Thread implements
*/
private static final int TIMEOUT_REGION_MOVED = (2 * 60 * 1000);
private void addToMovedRegions(String encodedName, ServerName destination, long closeSeqNum, boolean selfMove) {
private void addToMovedRegions(String encodedName, ServerName destination,
long closeSeqNum, boolean selfMove) {
if (selfMove) {
LOG.warn("Not adding moved region record: " + encodedName + " to self.");
return;
@ -3581,7 +3612,7 @@ public class HRegionServer extends Thread implements
@InterfaceAudience.Private
public int movedRegionCacheExpiredTime() {
return TIMEOUT_REGION_MOVED;
return TIMEOUT_REGION_MOVED;
}
private String getMyEphemeralNodePath() {
@ -3609,8 +3640,8 @@ public class HRegionServer extends Thread implements
String serviceName = call.getServiceName();
com.google.protobuf.Service service = coprocessorServiceHandlers.get(serviceName);
if (service == null) {
throw new UnknownProtocolException(null, "No registered coprocessor executorService found for " +
serviceName);
throw new UnknownProtocolException(null,
"No registered coprocessor executorService found for " + serviceName);
}
com.google.protobuf.Descriptors.ServiceDescriptor serviceDesc =
service.getDescriptorForType();