Examples of org.apache.hadoop.hbase.RegionTooBusyException

org.apache.hadoop.hbase.RegionTooBusyException
Thrown by a region server if it will block and wait to serve a request. For example, the client wants to insert something to a region while the region is compacting.

        final long totalTime = now - startTime;
        this.updatesBlockedMs.add(totalTime);
        LOG.info("Failed to unblock updates for region " + this + " '"
          + Thread.currentThread().getName() + "' in " + totalTime
          + "ms. The region is still busy.");
        throw new RegionTooBusyException("region is flushing");
      }
      blocked = true;
      synchronized(this) {
        try {
          wait(Math.min(timeToWait, threadWakeFrequency));

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      throws RegionTooBusyException, InterruptedIOException {
    try {
      final long waitTime = Math.min(maxBusyWaitDuration,
        busyWaitDuration * Math.min(multiplier, maxBusyWaitMultiplier));
      if (!lock.tryLock(waitTime, TimeUnit.MILLISECONDS)) {
        throw new RegionTooBusyException(
          "failed to get a lock in " + waitTime + "ms");
      }
    } catch (InterruptedException ie) {
      LOG.info("Interrupted while waiting for a lock");
      InterruptedIOException iie = new InterruptedIOException();

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        final long totalTime = now - startTime;
        this.updatesBlockedMs.add(totalTime);
        LOG.info("Failed to unblock updates for region " + this + " '"
          + Thread.currentThread().getName() + "' in " + totalTime
          + "ms. The region is still busy.");
        throw new RegionTooBusyException("region is flushing");
      }
      blocked = true;
      synchronized(this) {
        try {
          wait(Math.min(timeToWait, threadWakeFrequency));

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      throws RegionTooBusyException, InterruptedIOException {
    try {
      final long waitTime = Math.min(maxBusyWaitDuration,
        busyWaitDuration * Math.min(multiplier, maxBusyWaitMultiplier));
      if (!lock.tryLock(waitTime, TimeUnit.MILLISECONDS)) {
        throw new RegionTooBusyException(
          "failed to get a lock in " + waitTime + "ms");
      }
    } catch (InterruptedException ie) {
      LOG.info("Interrupted while waiting for a lock");
      InterruptedIOException iie = new InterruptedIOException();

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    // If catalog region, do not impose resource constraints or block updates.
    if (this.getRegionInfo().isMetaRegion()) return;


    if (this.memstoreSize.get() > this.blockingMemStoreSize) {
      requestFlush();
      throw new RegionTooBusyException("Above memstore limit, " +
          "regionName=" + (this.getRegionInfo() == null ? "unknown" :
          this.getRegionInfo().getRegionNameAsString()) +
          ", server=" + (this.getRegionServerServices() == null ? "unknown" :
          this.getRegionServerServices().getServerName()) +
          ", memstoreSize=" + memstoreSize.get() +

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      throws RegionTooBusyException, InterruptedIOException {
    try {
      final long waitTime = Math.min(maxBusyWaitDuration,
          busyWaitDuration * Math.min(multiplier, maxBusyWaitMultiplier));
      if (!lock.tryLock(waitTime, TimeUnit.MILLISECONDS)) {
        throw new RegionTooBusyException(
            "failed to get a lock in " + waitTime + " ms. " +
                "regionName=" + (this.getRegionInfo() == null ? "unknown" :
                this.getRegionInfo().getRegionNameAsString()) +
                ", server=" + (this.getRegionServerServices() == null ? "unknown" :
                this.getRegionServerServices().getServerName()));

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    // If catalog region, do not impose resource constraints or block updates.
    if (this.getRegionInfo().isMetaRegion()) return;


    if (this.memstoreSize.get() > this.blockingMemStoreSize) {
      requestFlush();
      throw new RegionTooBusyException("Above memstore limit, " +
          "regionName=" + (this.getRegionInfo() == null ? "unknown" :
          this.getRegionInfo().getRegionNameAsString()) +
          ", server=" + (this.getRegionServerServices() == null ? "unknown" :
          this.getRegionServerServices().getServerName()) +
          ", memstoreSize=" + memstoreSize.get() +

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      throws RegionTooBusyException, InterruptedIOException {
    try {
      final long waitTime = Math.min(maxBusyWaitDuration,
          busyWaitDuration * Math.min(multiplier, maxBusyWaitMultiplier));
      if (!lock.tryLock(waitTime, TimeUnit.MILLISECONDS)) {
        throw new RegionTooBusyException(
            "failed to get a lock in " + waitTime + " ms. " +
                "regionName=" + (this.getRegionInfo() == null ? "unknown" :
                this.getRegionInfo().getRegionNameAsString()) +
                ", server=" + (this.getRegionServerServices() == null ? "unknown" :
                this.getRegionServerServices().getServerName()));

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    public MultiResponse multi(RpcController controller, MultiRequest request)
    throws ServiceException {
      int concurrentInvocations = this.multiInvocationsCount.incrementAndGet();
      try {
        if (concurrentInvocations >= tooManyMultiRequests) {
          throw new ServiceException(new RegionTooBusyException("concurrentInvocations=" +
           concurrentInvocations));
        }
        Threads.sleep(multiPause);
        return doMultiResponse(meta, sequenceids, request);
      } finally {

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    public MultiResponse multi(RpcController controller, MultiRequest request)
    throws ServiceException {
      int concurrentInvocations = this.multiInvocationsCount.incrementAndGet();
      try {
        if (concurrentInvocations >= tooManyMultiRequests) {
          throw new ServiceException(new RegionTooBusyException("concurrentInvocations=" +
           concurrentInvocations));
        }
        Threads.sleep(multiPause);
        return doMultiResponse(meta, sequenceids, request);
      } finally {

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Related Classes of org.apache.hadoop.hbase.RegionTooBusyException

org.apache.hadoop.hbase.client.TestClientNoCluster$FakeServer

org.apache.hadoop.hbase.regionserver.HRegion

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