HBASE-10048 Add hlog number metric in regionserver
git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1548768 13f79535-47bb-0310-9956-ffa450edef68
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@ -117,6 +117,10 @@ public interface MetricsRegionServerSource extends BaseSource {
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String REGION_COUNT_DESC = "Number of regions";
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String STORE_COUNT = "storeCount";
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String STORE_COUNT_DESC = "Number of Stores";
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String HLOGFILE_COUNT = "hlogFileCount";
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String HLOGFILE_COUNT_DESC = "Number of HLog Files";
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String HLOGFILE_SIZE = "hlogFileSize";
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String HLOGFILE_SIZE_DESC = "Size of all HLog Files";
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String STOREFILE_COUNT = "storeFileCount";
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String STOREFILE_COUNT_DESC = "Number of Store Files";
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String MEMSTORE_SIZE = "memStoreSize";
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@ -67,6 +67,16 @@ public interface MetricsRegionServerWrapper {
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*/
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long getNumStores();
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/**
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* Get the number of HLog files of this region server.
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*/
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public long getNumHLogFiles();
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/**
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* Get the size of HLog files of this region server.
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*/
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public long getHLogFileSize();
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/**
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* Get the number of store files hosted on this region server.
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*/
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@ -148,6 +148,8 @@ public class MetricsRegionServerSourceImpl
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if (rsWrap != null) {
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mrb.addGauge(REGION_COUNT, REGION_COUNT_DESC, rsWrap.getNumOnlineRegions())
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.addGauge(STORE_COUNT, STORE_COUNT_DESC, rsWrap.getNumStores())
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.addGauge(HLOGFILE_COUNT, HLOGFILE_COUNT_DESC, rsWrap.getNumHLogFiles())
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.addGauge(HLOGFILE_SIZE, HLOGFILE_SIZE_DESC, rsWrap.getHLogFileSize())
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.addGauge(STOREFILE_COUNT, STOREFILE_COUNT_DESC, rsWrap.getNumStoreFiles())
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.addGauge(MEMSTORE_SIZE, MEMSTORE_SIZE_DESC, rsWrap.getMemstoreSize())
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.addGauge(STOREFILE_SIZE, STOREFILE_SIZE_DESC, rsWrap.getStoreFileSize())
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@ -155,6 +155,8 @@ public class MetricsRegionServerSourceImpl
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if (rsWrap != null) {
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mrb.addGauge(Interns.info(REGION_COUNT, REGION_COUNT_DESC), rsWrap.getNumOnlineRegions())
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.addGauge(Interns.info(STORE_COUNT, STORE_COUNT_DESC), rsWrap.getNumStores())
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.addGauge(Interns.info(HLOGFILE_COUNT, HLOGFILE_COUNT_DESC), rsWrap.getNumHLogFiles())
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.addGauge(Interns.info(HLOGFILE_SIZE, HLOGFILE_SIZE_DESC), rsWrap.getHLogFileSize())
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.addGauge(Interns.info(STOREFILE_COUNT, STOREFILE_COUNT_DESC), rsWrap.getNumStoreFiles())
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.addGauge(Interns.info(MEMSTORE_SIZE, MEMSTORE_SIZE_DESC), rsWrap.getMemstoreSize())
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.addGauge(Interns.info(STOREFILE_SIZE, STOREFILE_SIZE_DESC), rsWrap.getStoreFileSize())
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@ -40,6 +40,7 @@ java.lang.management.ManagementFactory;
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<li class="active"><a href="#tab_baseStats" data-toggle="tab">Base Stats</a></li>
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<li class=""><a href="#tab_memoryStats" data-toggle="tab">Memory</a></li>
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<li class=""><a href="#tab_requestStats" data-toggle="tab">Requests</a></li>
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<li class=""><a href="#tab_hlogStats" data-toggle="tab">hlogs</a></li>
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<li class=""><a href="#tab_storeStats" data-toggle="tab">Storefiles</a></li>
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<li class=""><a href="#tab_queueStats" data-toggle="tab">Queues</a></li>
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<li class=""><a href="#tab_blockCacheStats" data-toggle="tab">Block Cache</a></li>
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@ -54,6 +55,9 @@ java.lang.management.ManagementFactory;
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<div class="tab-pane" id="tab_requestStats">
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<& requestStats; mWrap = mWrap &>
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</div>
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<div class="tab-pane" id="tab_hlogStats">
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<& hlogStats; mWrap = mWrap &>
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</div>
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<div class="tab-pane" id="tab_storeStats">
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<& storeStats; mWrap = mWrap &>
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</div>
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@ -111,6 +115,24 @@ MetricsRegionServerWrapper mWrap;
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</table>
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</%def>
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<%def hlogStats>
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<%args>
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MetricsRegionServerWrapper mWrap;
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</%args>
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<table class="table table-striped">
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<tr>
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<tr>
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<th>Num. HLog Files</th>
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<th>Size. HLog Files (bytes)</th>
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</tr>
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</tr>
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<tr>
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<td><% mWrap.getNumHLogFiles() %></td>
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<td><% mWrap.getHLogFileSize() %></td>
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</tr>
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</table>
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</%def>
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<%def storeStats>
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<%args>
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MetricsRegionServerWrapper mWrap;
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@ -50,6 +50,8 @@ class MetricsRegionServerWrapperImpl
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private BlockCache blockCache;
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private volatile long numStores = 0;
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private volatile long numHLogFiles = 0;
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private volatile long hlogFileSize = 0;
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private volatile long numStoreFiles = 0;
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private volatile long memstoreSize = 0;
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private volatile long storeFileSize = 0;
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@ -264,6 +266,16 @@ class MetricsRegionServerWrapperImpl
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return numStores;
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}
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@Override
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public long getNumHLogFiles() {
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return numHLogFiles;
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}
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@Override
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public long getHLogFileSize() {
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return hlogFileSize;
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}
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@Override
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public long getNumStoreFiles() {
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return numStoreFiles;
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@ -421,6 +433,19 @@ class MetricsRegionServerWrapperImpl
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//Copy over computed values so that no thread sees half computed values.
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numStores = tempNumStores;
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long tempNumHLogFiles = regionServer.hlog.getNumLogFiles();
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// meta logs
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if (regionServer.hlogForMeta != null) {
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tempNumHLogFiles += regionServer.hlogForMeta.getNumLogFiles();
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}
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numHLogFiles = tempNumHLogFiles;
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long tempHlogFileSize = regionServer.hlog.getLogFileSize();
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if (regionServer.hlogForMeta != null) {
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tempHlogFileSize += regionServer.hlogForMeta.getLogFileSize();
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}
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hlogFileSize = tempHlogFileSize;
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numStoreFiles = tempNumStoreFiles;
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memstoreSize = tempMemstoreSize;
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storeFileSize = tempStoreFileSize;
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@ -436,5 +461,4 @@ class MetricsRegionServerWrapperImpl
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percentFileLocal = tempPercentFileLocal;
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}
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}
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}
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@ -196,6 +196,14 @@ class FSHLog implements HLog, Syncable {
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// of the default Hdfs block size.
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private final long logrollsize;
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/** size of current log */
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private long curLogSize = 0;
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/**
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* The total size of hlog
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*/
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private AtomicLong totalLogSize = new AtomicLong(0);
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// We synchronize on updateLock to prevent updates and to prevent a log roll
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// during an update
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// locked during appends
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@ -542,9 +550,12 @@ class FSHLog implements HLog, Syncable {
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}
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if (oldFile == null) LOG.info("New WAL " + FSUtils.getPath(newPath));
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else {
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LOG.info("Rolled WAL " + FSUtils.getPath(oldFile) + " with entries=" + oldNumEntries +
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", filesize=" + StringUtils.humanReadableInt(this.fs.getFileStatus(oldFile).getLen()) +
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"; new WAL " + FSUtils.getPath(newPath));
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long oldFileLen = this.fs.getFileStatus(oldFile).getLen();
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this.totalLogSize.addAndGet(oldFileLen);
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LOG.info("Rolled WAL " + FSUtils.getPath(oldFile) + " with entries="
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+ oldNumEntries + ", filesize="
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+ StringUtils.humanReadableInt(oldFileLen) + "; new WAL "
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+ FSUtils.getPath(newPath));
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}
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// Tell our listeners that a new log was created
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@ -555,7 +566,7 @@ class FSHLog implements HLog, Syncable {
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}
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// Can we delete any of the old log files?
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if (getNumLogFiles() > 0) {
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if (getNumRolledLogFiles() > 0) {
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cleanOldLogs();
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regionsToFlush = findRegionsToForceFlush();
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}
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@ -617,6 +628,7 @@ class FSHLog implements HLog, Syncable {
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}
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}
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for (Path p : logsToArchive) {
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this.totalLogSize.addAndGet(-this.fs.getFileStatus(p).getLen());
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archiveLogFile(p);
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this.hlogSequenceNums.remove(p);
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}
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@ -684,7 +696,7 @@ class FSHLog implements HLog, Syncable {
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*/
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byte[][] findRegionsToForceFlush() throws IOException {
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byte [][] regions = null;
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int logCount = getNumLogFiles();
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int logCount = getNumRolledLogFiles();
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if (logCount > this.maxLogs && logCount > 0) {
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Map.Entry<Path, Map<byte[], Long>> firstWALEntry =
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this.hlogSequenceNums.firstEntry();
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@ -1171,7 +1183,8 @@ class FSHLog implements HLog, Syncable {
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if (!this.logRollRunning) {
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checkLowReplication();
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try {
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if (tempWriter.getLength() > this.logrollsize) {
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curLogSize = tempWriter.getLength();
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if (curLogSize > this.logrollsize) {
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requestLogRoll();
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}
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} catch (IOException x) {
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@ -1335,11 +1348,24 @@ class FSHLog implements HLog, Syncable {
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return numEntries.get();
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}
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/** @return the number of log files in use */
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int getNumLogFiles() {
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/** @return the number of rolled log files */
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public int getNumRolledLogFiles() {
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return hlogSequenceNums.size();
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}
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/** @return the number of log files in use */
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@Override
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public int getNumLogFiles() {
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// +1 for current use log
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return getNumRolledLogFiles() + 1;
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}
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/** @return the size of log files in use */
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@Override
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public long getLogFileSize() {
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return totalLogSize.get() + curLogSize;
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}
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@Override
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public boolean startCacheFlush(final byte[] encodedRegionName) {
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Long oldRegionSeqNum = null;
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@ -208,6 +208,16 @@ public interface HLog {
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// TODO: Remove. Implementation detail.
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long getFilenum();
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/**
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* @return the number of HLog files
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*/
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int getNumLogFiles();
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/**
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* @return the size of HLog files
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*/
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long getLogFileSize();
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// TODO: Log rolling should not be in this interface.
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/**
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* Roll the log writer. That is, start writing log messages to a new file.
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@ -1508,7 +1508,7 @@ public class TestAdmin {
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byte[] value = Bytes.toBytes(v.toString());
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HRegionServer regionServer = startAndWriteData("TestLogRolling", value);
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LOG.info("after writing there are "
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+ HLogUtilsForTests.getNumLogFiles(regionServer.getWAL()) + " log files");
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+ HLogUtilsForTests.getNumRolledLogFiles(regionServer.getWAL()) + " log files");
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// flush all regions
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@ -1518,7 +1518,7 @@ public class TestAdmin {
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r.flushcache();
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}
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admin.rollHLogWriter(regionServer.getServerName().getServerName());
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int count = HLogUtilsForTests.getNumLogFiles(regionServer.getWAL());
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int count = HLogUtilsForTests.getNumRolledLogFiles(regionServer.getWAL());
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LOG.info("after flushing all regions and rolling logs there are " +
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count + " log files");
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assertTrue(("actual count: " + count), count <= 2);
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@ -201,4 +201,14 @@ public class MetricsRegionServerWrapperStub implements MetricsRegionServerWrappe
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//IGNORED.
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}
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@Override
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public long getNumHLogFiles() {
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return 10;
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}
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@Override
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public long getHLogFileSize() {
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return 1024000;
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}
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}
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@ -59,6 +59,8 @@ public class TestMetricsRegionServer {
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HELPER.assertGauge("regionServerStartTime", 100, serverSource);
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HELPER.assertGauge("regionCount", 101, serverSource);
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HELPER.assertGauge("storeCount", 2, serverSource);
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HELPER.assertGauge("hlogFileCount", 10, serverSource);
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HELPER.assertGauge("hlogFileSize", 1024000, serverSource);
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HELPER.assertGauge("storeFileCount", 300, serverSource);
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HELPER.assertGauge("memstoreSize", 1025, serverSource);
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HELPER.assertGauge("storeFileSize", 1900, serverSource);
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@ -33,8 +33,8 @@ public class HLogUtilsForTests {
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* @param log
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* @return
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*/
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public static int getNumLogFiles(HLog log) {
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return ((FSHLog) log).getNumLogFiles();
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public static int getNumRolledLogFiles(HLog log) {
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return ((FSHLog) log).getNumRolledLogFiles();
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}
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public static int getNumEntries(HLog log) {
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@ -653,12 +653,12 @@ public class TestHLog {
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// Before HBASE-3198 it used to delete it
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addEdits(log, hri, tableName, 1, sequenceId);
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log.rollWriter();
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assertEquals(1, ((FSHLog) log).getNumLogFiles());
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assertEquals(1, ((FSHLog) log).getNumRolledLogFiles());
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// See if there's anything wrong with more than 1 edit
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addEdits(log, hri, tableName, 2, sequenceId);
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log.rollWriter();
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assertEquals(2, ((FSHLog) log).getNumLogFiles());
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assertEquals(2, ((FSHLog) log).getNumRolledLogFiles());
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// Now mix edits from 2 regions, still no flushing
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addEdits(log, hri, tableName, 1, sequenceId);
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@ -666,7 +666,7 @@ public class TestHLog {
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addEdits(log, hri, tableName, 1, sequenceId);
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addEdits(log, hri2, tableName2, 1, sequenceId);
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log.rollWriter();
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assertEquals(3, ((FSHLog) log).getNumLogFiles());
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assertEquals(3, ((FSHLog) log).getNumRolledLogFiles());
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// Flush the first region, we expect to see the first two files getting
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// archived. We need to append something or writer won't be rolled.
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@ -674,7 +674,7 @@ public class TestHLog {
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log.startCacheFlush(hri.getEncodedNameAsBytes());
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log.completeCacheFlush(hri.getEncodedNameAsBytes());
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log.rollWriter();
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assertEquals(2, ((FSHLog) log).getNumLogFiles());
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assertEquals(2, ((FSHLog) log).getNumRolledLogFiles());
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// Flush the second region, which removes all the remaining output files
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// since the oldest was completely flushed and the two others only contain
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@ -683,7 +683,7 @@ public class TestHLog {
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log.startCacheFlush(hri2.getEncodedNameAsBytes());
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log.completeCacheFlush(hri2.getEncodedNameAsBytes());
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log.rollWriter();
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assertEquals(0, ((FSHLog) log).getNumLogFiles());
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assertEquals(0, ((FSHLog) log).getNumRolledLogFiles());
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} finally {
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if (log != null) log.closeAndDelete();
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}
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@ -994,7 +994,7 @@ public class TestHLog {
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TableName table2 = TableName.valueOf("t2");
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HLog hlog = HLogFactory.createHLog(fs, FSUtils.getRootDir(conf), dir.toString(), conf);
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try {
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assertEquals(0, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(0, ((FSHLog) hlog).getNumRolledLogFiles());
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HRegionInfo hri1 = new HRegionInfo(table1, HConstants.EMPTY_START_ROW,
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HConstants.EMPTY_END_ROW);
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HRegionInfo hri2 = new HRegionInfo(table2, HConstants.EMPTY_START_ROW,
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@ -1009,26 +1009,26 @@ public class TestHLog {
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addEdits(hlog, hri1, table1, 1, sequenceId1);
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hlog.rollWriter();
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// assert that the wal is rolled
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assertEquals(1, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(1, ((FSHLog) hlog).getNumRolledLogFiles());
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// add edits in the second wal file, and roll writer.
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addEdits(hlog, hri1, table1, 1, sequenceId1);
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hlog.rollWriter();
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// assert that the wal is rolled
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assertEquals(2, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(2, ((FSHLog) hlog).getNumRolledLogFiles());
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// add a waledit to table1, and flush the region.
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addEdits(hlog, hri1, table1, 3, sequenceId1);
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flushRegion(hlog, hri1.getEncodedNameAsBytes());
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// roll log; all old logs should be archived.
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hlog.rollWriter();
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assertEquals(0, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(0, ((FSHLog) hlog).getNumRolledLogFiles());
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// add an edit to table2, and roll writer
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addEdits(hlog, hri2, table2, 1, sequenceId2);
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hlog.rollWriter();
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assertEquals(1, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(1, ((FSHLog) hlog).getNumRolledLogFiles());
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// add edits for table1, and roll writer
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addEdits(hlog, hri1, table1, 2, sequenceId1);
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hlog.rollWriter();
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assertEquals(2, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(2, ((FSHLog) hlog).getNumRolledLogFiles());
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// add edits for table2, and flush hri1.
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addEdits(hlog, hri2, table2, 2, sequenceId2);
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flushRegion(hlog, hri1.getEncodedNameAsBytes());
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@ -1038,12 +1038,12 @@ public class TestHLog {
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// log3: region2 (unflushed)
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// roll the writer; log2 should be archived.
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hlog.rollWriter();
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assertEquals(2, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(2, ((FSHLog) hlog).getNumRolledLogFiles());
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// flush region2, and all logs should be archived.
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addEdits(hlog, hri2, table2, 2, sequenceId2);
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flushRegion(hlog, hri2.getEncodedNameAsBytes());
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hlog.rollWriter();
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assertEquals(0, ((FSHLog) hlog).getNumLogFiles());
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assertEquals(0, ((FSHLog) hlog).getNumRolledLogFiles());
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} finally {
|
||||
if (hlog != null) hlog.close();
|
||||
}
|
||||
|
@ -1079,7 +1079,7 @@ public class TestHLog {
|
|||
addEdits(hlog, hri1, t1, 2, sequenceId1);
|
||||
hlog.rollWriter();
|
||||
// with above rollWriter call, the max logs limit is reached.
|
||||
assertTrue(((FSHLog) hlog).getNumLogFiles() == 2);
|
||||
assertTrue(((FSHLog) hlog).getNumRolledLogFiles() == 2);
|
||||
|
||||
// get the regions to flush; since there is only one region in the oldest wal, it should
|
||||
// return only one region.
|
||||
|
@ -1097,18 +1097,18 @@ public class TestHLog {
|
|||
flushRegion(hlog, hri1.getEncodedNameAsBytes());
|
||||
hlog.rollWriter();
|
||||
// only one wal should remain now (that is for the second region).
|
||||
assertEquals(1, ((FSHLog) hlog).getNumLogFiles());
|
||||
assertEquals(1, ((FSHLog) hlog).getNumRolledLogFiles());
|
||||
// flush the second region
|
||||
flushRegion(hlog, hri2.getEncodedNameAsBytes());
|
||||
hlog.rollWriter(true);
|
||||
// no wal should remain now.
|
||||
assertEquals(0, ((FSHLog) hlog).getNumLogFiles());
|
||||
assertEquals(0, ((FSHLog) hlog).getNumRolledLogFiles());
|
||||
// add edits both to region 1 and region 2, and roll.
|
||||
addEdits(hlog, hri1, t1, 2, sequenceId1);
|
||||
addEdits(hlog, hri2, t2, 2, sequenceId2);
|
||||
hlog.rollWriter();
|
||||
// add edits and roll the writer, to reach the max logs limit.
|
||||
assertEquals(1, ((FSHLog) hlog).getNumLogFiles());
|
||||
assertEquals(1, ((FSHLog) hlog).getNumRolledLogFiles());
|
||||
addEdits(hlog, hri1, t1, 2, sequenceId1);
|
||||
hlog.rollWriter();
|
||||
// it should return two regions to flush, as the oldest wal file has entries
|
||||
|
@ -1119,14 +1119,14 @@ public class TestHLog {
|
|||
flushRegion(hlog, hri1.getEncodedNameAsBytes());
|
||||
flushRegion(hlog, hri2.getEncodedNameAsBytes());
|
||||
hlog.rollWriter(true);
|
||||
assertEquals(0, ((FSHLog) hlog).getNumLogFiles());
|
||||
assertEquals(0, ((FSHLog) hlog).getNumRolledLogFiles());
|
||||
// Add an edit to region1, and roll the wal.
|
||||
addEdits(hlog, hri1, t1, 2, sequenceId1);
|
||||
// tests partial flush: roll on a partial flush, and ensure that wal is not archived.
|
||||
hlog.startCacheFlush(hri1.getEncodedNameAsBytes());
|
||||
hlog.rollWriter();
|
||||
hlog.completeCacheFlush(hri1.getEncodedNameAsBytes());
|
||||
assertEquals(1, ((FSHLog) hlog).getNumLogFiles());
|
||||
assertEquals(1, ((FSHLog) hlog).getNumRolledLogFiles());
|
||||
} finally {
|
||||
if (hlog != null) hlog.close();
|
||||
}
|
||||
|
|
|
@ -221,7 +221,7 @@ public class TestLogRolling {
|
|||
public void testLogRolling() throws Exception {
|
||||
this.tableName = getName();
|
||||
startAndWriteData();
|
||||
LOG.info("after writing there are " + ((FSHLog) log).getNumLogFiles() + " log files");
|
||||
LOG.info("after writing there are " + ((FSHLog) log).getNumRolledLogFiles() + " log files");
|
||||
|
||||
// flush all regions
|
||||
|
||||
|
@ -234,9 +234,9 @@ public class TestLogRolling {
|
|||
// Now roll the log
|
||||
log.rollWriter();
|
||||
|
||||
int count = ((FSHLog) log).getNumLogFiles();
|
||||
int count = ((FSHLog) log).getNumRolledLogFiles();
|
||||
LOG.info("after flushing all regions and rolling logs there are " +
|
||||
((FSHLog) log).getNumLogFiles() + " log files");
|
||||
((FSHLog) log).getNumRolledLogFiles() + " log files");
|
||||
assertTrue(("actual count: " + count), count <= 2);
|
||||
}
|
||||
|
||||
|
@ -606,12 +606,12 @@ public class TestLogRolling {
|
|||
admin.flush(table2.getTableName());
|
||||
}
|
||||
doPut(table2, 3); // don't flush yet, or compaction might trigger before we roll WAL
|
||||
assertEquals("Should have no WAL after initial writes", 0, fshLog.getNumLogFiles());
|
||||
assertEquals("Should have no WAL after initial writes", 0, fshLog.getNumRolledLogFiles());
|
||||
assertEquals(2, s.getStorefilesCount());
|
||||
|
||||
// Roll the log and compact table2, to have compaction record in the 2nd WAL.
|
||||
fshLog.rollWriter();
|
||||
assertEquals("Should have WAL; one table is not flushed", 1, fshLog.getNumLogFiles());
|
||||
assertEquals("Should have WAL; one table is not flushed", 1, fshLog.getNumRolledLogFiles());
|
||||
admin.flush(table2.getTableName());
|
||||
region.compactStores();
|
||||
// Wait for compaction in case if flush triggered it before us.
|
||||
|
@ -624,13 +624,13 @@ public class TestLogRolling {
|
|||
// Write some value to the table so the WAL cannot be deleted until table is flushed.
|
||||
doPut(table, 0); // Now 2nd WAL will have compaction record for table2 and put for table.
|
||||
fshLog.rollWriter(); // 1st WAL deleted, 2nd not deleted yet.
|
||||
assertEquals("Should have WAL; one table is not flushed", 1, fshLog.getNumLogFiles());
|
||||
assertEquals("Should have WAL; one table is not flushed", 1, fshLog.getNumRolledLogFiles());
|
||||
|
||||
// Flush table to make latest WAL obsolete; write another record, and roll again.
|
||||
admin.flush(table.getTableName());
|
||||
doPut(table, 1);
|
||||
fshLog.rollWriter(); // Now 2nd WAL is deleted and 3rd is added.
|
||||
assertEquals("Should have 1 WALs at the end", 1, fshLog.getNumLogFiles());
|
||||
assertEquals("Should have 1 WALs at the end", 1, fshLog.getNumRolledLogFiles());
|
||||
|
||||
table.close();
|
||||
table2.close();
|
||||
|
|
Loading…
Reference in New Issue