HBASE-2021 Add compaction details to master UI
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@895912 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack
parent
95ed506323
commit
9cacb67b69
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@ -151,6 +151,9 @@ public class HMaster extends Thread implements HConstants, HMasterInterface,
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private final ServerManager serverManager;
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private final RegionManager regionManager;
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private long lastFragmentationQuery = -1L;
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private Map<String, Integer> fragmentation = null;
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/**
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* Constructor
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* @param conf configuration
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@ -1233,6 +1236,17 @@ public class HMaster extends Thread implements HConstants, HMasterInterface,
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}
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}
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public Map<String, Integer> getTableFragmentation() throws IOException {
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long now = System.currentTimeMillis();
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// only check every two minutes by default
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int check = this.conf.getInt("hbase.master.fragmentation.check.frequency", 2 * 60 * 1000);
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if (lastFragmentationQuery == -1 || now - lastFragmentationQuery > check) {
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fragmentation = FSUtils.getTableFragmentation(this);
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lastFragmentationQuery = now;
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}
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return fragmentation;
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}
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/**
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* Main program
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* @param args
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@ -217,4 +217,14 @@ class CompactSplitThread extends Thread implements HConstants {
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this.interrupt();
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}
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}
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/**
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* Returns the current size of the queue containing regions that are
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* processed.
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*
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* @return The current size of the regions queue.
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*/
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public int getCompactionQueueSize() {
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return compactionQueue.size();
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}
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}
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@ -1010,6 +1010,8 @@ public class HRegionServer implements HConstants, HRegionInterface,
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this.metrics.storefiles.set(storefiles);
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this.metrics.memstoreSizeMB.set((int)(memstoreSize/(1024*1024)));
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this.metrics.storefileIndexSizeMB.set((int)(storefileIndexSize/(1024*1024)));
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this.metrics.compactionQueueSize.set(compactSplitThread.
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getCompactionQueueSize());
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LruBlockCache lruBlockCache = (LruBlockCache)StoreFile.getBlockCache(conf);
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if (lruBlockCache != null) {
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@ -107,6 +107,12 @@ public class RegionServerMetrics implements Updater {
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public final MetricsIntValue memstoreSizeMB =
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new MetricsIntValue("memstoreSizeMB", registry);
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/**
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* Size of the compaction queue.
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*/
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public final MetricsIntValue compactionQueueSize =
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new MetricsIntValue("compactionQueueSize", registry);
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/**
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* filesystem read latency
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*/
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@ -158,7 +164,7 @@ public class RegionServerMetrics implements Updater {
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this.memstoreSizeMB.pushMetric(this.metricsRecord);
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this.regions.pushMetric(this.metricsRecord);
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this.requests.pushMetric(this.metricsRecord);
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this.compactionQueueSize.pushMetric(this.metricsRecord);
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this.blockCacheSize.pushMetric(this.metricsRecord);
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this.blockCacheFree.pushMetric(this.metricsRecord);
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this.blockCacheCount.pushMetric(this.metricsRecord);
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@ -218,6 +224,8 @@ public class RegionServerMetrics implements Updater {
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Integer.valueOf(this.storefileIndexSizeMB.get()));
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sb = Strings.appendKeyValue(sb, "memstoreSize",
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Integer.valueOf(this.memstoreSizeMB.get()));
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sb = Strings.appendKeyValue(sb, "compactionQueueSize",
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Integer.valueOf(this.compactionQueueSize.get()));
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// Duplicate from jvmmetrics because metrics are private there so
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// inaccessible.
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MemoryUsage memory =
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@ -23,6 +23,8 @@ import java.io.DataInputStream;
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import java.io.IOException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.util.HashMap;
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import java.util.Map;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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@ -36,6 +38,7 @@ import org.apache.hadoop.fs.PathFilter;
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import org.apache.hadoop.hbase.HConstants;
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import org.apache.hadoop.hbase.HRegionInfo;
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import org.apache.hadoop.hbase.RemoteExceptionHandler;
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import org.apache.hadoop.hbase.master.HMaster;
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import org.apache.hadoop.hbase.regionserver.HRegion;
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import org.apache.hadoop.hdfs.DistributedFileSystem;
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import org.apache.hadoop.hdfs.protocol.FSConstants;
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@ -360,6 +363,98 @@ public class FSUtils {
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return true;
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}
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/**
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* Returns the total overall fragmentation percentage. Includes .META. and
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* -ROOT- as well.
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*
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* @param master The master defining the HBase root and file system.
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* @return A map for each table and its percentage.
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* @throws IOException When scanning the directory fails.
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*/
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public static int getTotalTableFragmentation(final HMaster master)
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throws IOException {
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Map<String, Integer> map = getTableFragmentation(master);
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return map != null && map.size() > 0 ? map.get("-TOTAL-").intValue() : -1;
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}
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/**
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* Runs through the HBase rootdir and checks how many stores for each table
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* have more than one file in them. Checks -ROOT- and .META. too. The total
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* percentage across all tables is stored under the special key "-TOTAL-".
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*
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* @param master The master defining the HBase root and file system.
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* @return A map for each table and its percentage.
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* @throws IOException When scanning the directory fails.
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*/
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public static Map<String, Integer> getTableFragmentation(
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final HMaster master)
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throws IOException {
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Path path = master.getRootDir();
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// since HMaster.getFileSystem() is package private
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FileSystem fs = path.getFileSystem(master.getConfiguration());
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return getTableFragmentation(fs, path);
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}
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/**
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* Runs through the HBase rootdir and checks how many stores for each table
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* have more than one file in them. Checks -ROOT- and .META. too. The total
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* percentage across all tables is stored under the special key "-TOTAL-".
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*
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* @param fs The file system to use.
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* @param hbaseRootDir The root directory to scan.
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* @return A map for each table and its percentage.
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* @throws IOException When scanning the directory fails.
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*/
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public static Map<String, Integer> getTableFragmentation(
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final FileSystem fs, final Path hbaseRootDir)
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throws IOException {
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Map<String, Integer> frags = new HashMap<String, Integer>();
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int cfCountTotal = 0;
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int cfFragTotal = 0;
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DirFilter df = new DirFilter(fs);
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// presumes any directory under hbase.rootdir is a table
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FileStatus [] tableDirs = fs.listStatus(hbaseRootDir, df);
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for (int i = 0; i < tableDirs.length; i++) {
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// Skip the .log directory. All others should be tables. Inside a table,
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// there are compaction.dir directories to skip. Otherwise, all else
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// should be regions. Then in each region, should only be family
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// directories. Under each of these, should be one file only.
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Path d = tableDirs[i].getPath();
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if (d.getName().equals(HConstants.HREGION_LOGDIR_NAME)) {
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continue;
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}
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int cfCount = 0;
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int cfFrag = 0;
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FileStatus [] regionDirs = fs.listStatus(d, df);
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for (int j = 0; j < regionDirs.length; j++) {
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Path dd = regionDirs[j].getPath();
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if (dd.getName().equals(HConstants.HREGION_COMPACTIONDIR_NAME)) {
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continue;
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}
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// else its a region name, now look in region for families
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FileStatus [] familyDirs = fs.listStatus(dd, df);
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for (int k = 0; k < familyDirs.length; k++) {
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cfCount++;
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cfCountTotal++;
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Path family = familyDirs[k].getPath();
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// now in family make sure only one file
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FileStatus [] familyStatus = fs.listStatus(family);
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if (familyStatus.length > 1) {
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cfFrag++;
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cfFragTotal++;
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}
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}
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}
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// compute percentage per table and store in result list
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frags.put(d.getName(), new Integer(
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Math.round((float) cfFrag / cfCount * 100)));
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}
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// set overall percentage for all tables
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frags.put("-TOTAL-", new Integer(
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Math.round((float) cfFragTotal / cfCountTotal * 100)));
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return frags;
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}
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/**
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* Expects to find -ROOT- directory.
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* @param fs
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@ -4,6 +4,7 @@
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import="org.apache.hadoop.conf.Configuration"
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import="org.apache.hadoop.io.Text"
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import="org.apache.hadoop.hbase.util.Bytes"
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import="org.apache.hadoop.hbase.util.FSUtils"
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import="org.apache.hadoop.hbase.master.HMaster"
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import="org.apache.hadoop.hbase.HConstants"
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import="org.apache.hadoop.hbase.master.MetaRegion"
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@ -24,6 +25,7 @@
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if (interval == 0) {
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interval = 1;
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}
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Map<String, Integer> frags = master.getTableFragmentation();
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%><?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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@ -49,6 +51,7 @@
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<tr><td>HBase Root Directory</td><td><%= master.getRootDir().toString() %></td><td>Location of HBase home directory</td></tr>
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<tr><td>Load average</td><td><%= master.getServerManager().getAverageLoad() %></td><td>Average number of regions per regionserver. Naive computation.</td></tr>
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<tr><td>Regions On FS</td><td><%= master.getRegionManager().countRegionsOnFS() %></td><td>Number of regions on FileSystem. Rough count.</td></tr>
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<tr><td>Fragmentation</td><td><%= frags.get("-TOTAL-") != null ? frags.get("-TOTAL-").intValue() + "%" : "n/a" %></td><td>Overall fragmentation of all tables, including .META. and -ROOT-.</td></tr>
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<tr><td>Zookeeper Quorum</td><td><%= master.getZooKeeperWrapper().getQuorumServers() %></td><td>Addresses of all registered ZK servers. For more, see <a href="/zk.jsp">zk dump</a>.</td></tr>
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</table>
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@ -56,11 +59,17 @@
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<%
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if (rootLocation != null) { %>
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<table>
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<tr><th>Table</th><th>Description</th></tr>
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<tr><td><a href="/table.jsp?name=<%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %>"><%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %></a></td><td>The -ROOT- table holds references to all .META. regions.</td></tr>
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<tr><th>Table</th><th title="Fragmentation - Will be 0% after a major compaction and fluctuate during normal usage.">Frag.</th><th>Description</th></tr>
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<tr><td><a href="/table.jsp?name=<%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %>"><%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %></a></td>
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<td align="center"><%= frags.get("-ROOT-") != null ? frags.get("-ROOT-").intValue() + "%" : "n/a" %></td>
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<td>The -ROOT- table holds references to all .META. regions.</td>
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</tr>
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<%
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if (onlineRegions != null && onlineRegions.size() > 0) { %>
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<tr><td><a href="/table.jsp?name=<%= Bytes.toString(HConstants.META_TABLE_NAME) %>"><%= Bytes.toString(HConstants.META_TABLE_NAME) %></a></td><td>The .META. table holds references to all User Table regions</td></tr>
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<tr><td><a href="/table.jsp?name=<%= Bytes.toString(HConstants.META_TABLE_NAME) %>"><%= Bytes.toString(HConstants.META_TABLE_NAME) %></a></td>
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<td align="center"><%= frags.get(".META.") != null ? frags.get(".META.").intValue() + "%" : "n/a" %></td>
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<td>The .META. table holds references to all User Table regions</td>
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</tr>
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<% } %>
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</table>
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@ -70,9 +79,12 @@
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<% HTableDescriptor[] tables = new HBaseAdmin(conf).listTables();
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if(tables != null && tables.length > 0) { %>
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<table>
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<tr><th>Table</th><th>Description</th></tr>
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<tr><th>Table</th><th title="Fragmentation - Will be 0% after a major compaction and fluctuate during normal usage.">Frag.</th><th>Description</th></tr>
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<% for(HTableDescriptor htDesc : tables ) { %>
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<tr><td><a href=/table.jsp?name=<%= htDesc.getNameAsString() %>><%= htDesc.getNameAsString() %></a> </td><td><%= htDesc.toString() %></td></tr>
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<tr><td><a href=/table.jsp?name=<%= htDesc.getNameAsString() %>><%= htDesc.getNameAsString() %></a> </td>
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<td align="center"><%= frags.get(htDesc.getNameAsString()) != null ? frags.get(htDesc.getNameAsString()).intValue() + "%" : "n/a" %></td>
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<td><%= htDesc.toString() %></td>
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</tr>
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<% } %>
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<p> <%= tables.length %> table(s) in set.</p>
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@ -28,6 +28,7 @@
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master.getServerManager().getServerAddressToServerInfo();
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String tableHeader = "<h2>Table Regions</h2><table><tr><th>Name</th><th>Region Server</th><th>Encoded Name</th><th>Start Key</th><th>End Key</th></tr>";
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HServerAddress rootLocation = master.getRegionManager().getRootRegionLocation();
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Map<String, Integer> frags = master.getTableFragmentation();
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%>
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<?xml version="1.0" encoding="UTF-8" ?>
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@ -121,6 +122,7 @@
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<table>
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<tr><th>Attribute Name</th><th>Value</th><th>Description</th></tr>
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<tr><td>Enabled</td><td><%= hbadmin.isTableEnabled(table.getTableName()) %></td><td>Is the table enabled</td></tr>
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<tr><td>Fragmentation</td><td><%= frags.get(tableName) != null ? frags.get(tableName).intValue() + "%" : "n/a" %></td><td>How fragmented is the table. After a major compaction it is 0%.</td></tr>
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</table>
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<%
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Map<HRegionInfo, HServerAddress> regions = table.getRegionsInfo();
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