List of usage examples for org.apache.zookeeper KeeperException code
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From source file:org.apache.bookkeeper.zookeeper.ZooWorker.java
License:Apache License
public boolean allowRetry(int rc) { elapsedTimeMs = MathUtils.elapsedMSec(startTimeNanos); if (!ZooWorker.isRecoverableException(rc)) { if (KeeperException.Code.OK.intValue() == rc) { statsLogger.registerSuccessfulEvent(MathUtils.elapsedMicroSec(startTimeNanos), TimeUnit.MICROSECONDS); } else {// w w w. jav a 2 s . c o m statsLogger.registerFailedEvent(MathUtils.elapsedMicroSec(startTimeNanos), TimeUnit.MICROSECONDS); } return false; } ++attempts; return retryPolicy.allowRetry(attempts, elapsedTimeMs); }
From source file:org.apache.curator.framework.imps.CreateBuilderImpl.java
License:Apache License
@Override public void performBackgroundOperation(final OperationAndData<PathAndBytes> operationAndData) throws Exception { try {//w w w . j a v a2 s. c o m final OperationTrace trace = client.getZookeeperClient() .startAdvancedTracer("CreateBuilderImpl-Background"); final byte[] data = operationAndData.getData().getData(); client.getZooKeeper().create(operationAndData.getData().getPath(), data, acling.getAclList(operationAndData.getData().getPath()), createMode, new AsyncCallback.StringCallback() { @Override public void processResult(int rc, String path, Object ctx, String name) { trace.setReturnCode(rc).setRequestBytesLength(data).setPath(path).commit(); if ((rc == KeeperException.Code.NONODE.intValue()) && createParentsIfNeeded) { backgroundCreateParentsThenNode(client, operationAndData, operationAndData.getData().getPath(), backgrounding, createParentsAsContainers); } else { sendBackgroundResponse(rc, path, ctx, name, operationAndData); } } }, backgrounding.getContext()); } catch (Throwable e) { backgrounding.checkError(e); } }
From source file:org.apache.curator.framework.imps.CreateBuilderImpl.java
License:Apache License
private void pathInBackground(final String path, final byte[] data, final String givenPath) { final AtomicBoolean firstTime = new AtomicBoolean(true); OperationAndData<PathAndBytes> operationAndData = new OperationAndData<PathAndBytes>(this, new PathAndBytes(path, data), backgrounding.getCallback(), new OperationAndData.ErrorCallback<PathAndBytes>() { public void retriesExhausted(OperationAndData<PathAndBytes> operationAndData) { if (doProtected) { // all retries have failed, findProtectedNodeInForeground(..) included, schedule a clean up new FindAndDeleteProtectedNodeInBackground(client, ZKPaths.getPathAndNode(path).getPath(), protectedId).execute(); // assign a new id if this builder is used again later protectedId = UUID.randomUUID().toString(); }// w w w . j ava2 s.c om } }, backgrounding.getContext()) { @Override void callPerformBackgroundOperation() throws Exception { boolean callSuper = true; boolean localFirstTime = firstTime.getAndSet(false) && !debugForceFindProtectedNode; if (!localFirstTime && doProtected) { debugForceFindProtectedNode = false; String createdPath = null; try { createdPath = findProtectedNodeInForeground(path); } catch (KeeperException.ConnectionLossException e) { sendBackgroundResponse(KeeperException.Code.CONNECTIONLOSS.intValue(), path, backgrounding.getContext(), null, this); callSuper = false; } if (createdPath != null) { try { sendBackgroundResponse(KeeperException.Code.OK.intValue(), createdPath, backgrounding.getContext(), createdPath, this); } catch (Exception e) { ThreadUtils.checkInterrupted(e); client.logError("Processing protected create for path: " + givenPath, e); } callSuper = false; } } if (failNextCreateForTesting) { pathInForeground(path, data); // simulate success on server without notification to client failNextCreateForTesting = false; throw new KeeperException.ConnectionLossException(); } if (callSuper) { super.callPerformBackgroundOperation(); } } }; client.processBackgroundOperation(operationAndData, null); }
From source file:org.apache.curator.framework.imps.CuratorFrameworkImpl.java
License:Apache License
Watcher.Event.KeeperState codeToState(KeeperException.Code code) { switch (code) { case AUTHFAILED: case NOAUTH: { return Watcher.Event.KeeperState.AuthFailed; }//from w ww .j a v a 2 s. co m case CONNECTIONLOSS: case OPERATIONTIMEOUT: { return Watcher.Event.KeeperState.Disconnected; } case SESSIONEXPIRED: { return Watcher.Event.KeeperState.Expired; } case OK: case SESSIONMOVED: { return Watcher.Event.KeeperState.SyncConnected; } } return Watcher.Event.KeeperState.fromInt(-1); }
From source file:org.apache.curator.framework.imps.CuratorFrameworkImpl.java
License:Apache License
@SuppressWarnings({ "ThrowableResultOfMethodCallIgnored" })
private <DATA_TYPE> boolean checkBackgroundRetry(OperationAndData<DATA_TYPE> operationAndData,
CuratorEvent event) {/* ww w .ja v a 2 s . c om*/
boolean doRetry = false;
if (client.getRetryPolicy().allowRetry(operationAndData.getThenIncrementRetryCount(),
operationAndData.getElapsedTimeMs(), operationAndData)) {
doRetry = true;
} else {
if (operationAndData.getErrorCallback() != null) {
operationAndData.getErrorCallback().retriesExhausted(operationAndData);
}
if (operationAndData.getCallback() != null) {
sendToBackgroundCallback(operationAndData, event);
}
KeeperException.Code code = KeeperException.Code.get(event.getResultCode());
Exception e = null;
try {
e = (code != null) ? KeeperException.create(code) : null;
} catch (Throwable t) {
ThreadUtils.checkInterrupted(t);
}
if (e == null) {
e = new Exception("Unknown result codegetResultCode()");
}
validateConnection(codeToState(code));
logError("Background operation retry gave up", e);
}
return doRetry;
}
From source file:org.apache.curator.framework.imps.CuratorFrameworkImpl.java
License:Apache License
private void performBackgroundOperation(OperationAndData<?> operationAndData) { try {/*from ww w . j av a 2s. c o m*/ if (client.isConnected()) { operationAndData.callPerformBackgroundOperation(); } else { client.getZooKeeper(); // important - allow connection resets, timeouts, etc. to occur if (operationAndData.getElapsedTimeMs() >= client.getConnectionTimeoutMs()) { throw new CuratorConnectionLossException(); } operationAndData.sleepFor(1, TimeUnit.SECONDS); queueOperation(operationAndData); } } catch (Throwable e) { ThreadUtils.checkInterrupted(e); /** * Fix edge case reported as CURATOR-52. ConnectionState.checkTimeouts() throws KeeperException.ConnectionLossException * when the initial (or previously failed) connection cannot be re-established. This needs to be run through the retry policy * and callbacks need to get invoked, etc. */ if (e instanceof CuratorConnectionLossException) { WatchedEvent watchedEvent = new WatchedEvent(Watcher.Event.EventType.None, Watcher.Event.KeeperState.Disconnected, null); CuratorEvent event = new CuratorEventImpl(this, CuratorEventType.WATCHED, KeeperException.Code.CONNECTIONLOSS.intValue(), null, null, operationAndData.getContext(), null, null, null, watchedEvent, null); if (checkBackgroundRetry(operationAndData, event)) { queueOperation(operationAndData); } else { logError("Background retry gave up", e); } } else { handleBackgroundOperationException(operationAndData, e); } } }
From source file:org.apache.curator.framework.imps.DeleteBuilderImpl.java
License:Apache License
@Override public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception { try {/* w w w . ja va2 s . com*/ final OperationTrace trace = client.getZookeeperClient() .startAdvancedTracer("DeleteBuilderImpl-Background"); client.getZooKeeper().delete(operationAndData.getData(), version, new AsyncCallback.VoidCallback() { @Override public void processResult(int rc, String path, Object ctx) { trace.setReturnCode(rc).setPath(path).commit(); if ((rc == KeeperException.Code.NOTEMPTY.intValue()) && deletingChildrenIfNeeded) { backgroundDeleteChildrenThenNode(operationAndData); } else { CuratorEvent event = new CuratorEventImpl(client, CuratorEventType.DELETE, rc, path, null, ctx, null, null, null, null, null); client.processBackgroundOperation(operationAndData, event); } } }, backgrounding.getContext()); } catch (Throwable e) { backgrounding.checkError(e); } }
From source file:org.apache.curator.framework.imps.EnsembleTracker.java
License:Apache License
private void reset() throws Exception { if ((client.getState() == CuratorFrameworkState.STARTED) && (state.get() == State.STARTED)) { BackgroundCallback backgroundCallback = new BackgroundCallback() { @Override/*from w w w.j a va2 s.c o m*/ public void processResult(CuratorFramework client, CuratorEvent event) throws Exception { outstanding.decrementAndGet(); if ((event.getType() == CuratorEventType.GET_CONFIG) && (event.getResultCode() == KeeperException.Code.OK.intValue())) { processConfigData(event.getData()); } } }; outstanding.incrementAndGet(); try { client.getConfig().usingWatcher(this).inBackground(backgroundCallback).forEnsemble(); outstanding.incrementAndGet(); // finally block will decrement } finally { outstanding.decrementAndGet(); } } }
From source file:org.apache.curator.framework.imps.FindAndDeleteProtectedNodeInBackground.java
License:Apache License
@Override public void performBackgroundOperation(final OperationAndData<Void> operationAndData) throws Exception { final OperationTrace trace = client.getZookeeperClient() .startAdvancedTracer("FindAndDeleteProtectedNodeInBackground"); AsyncCallback.Children2Callback callback = new AsyncCallback.Children2Callback() { @Override/*from w w w.j a va 2 s . com*/ public void processResult(int rc, String path, Object o, List<String> strings, Stat stat) { trace.setReturnCode(rc).setPath(path).setStat(stat).commit(); if (debugInsertError.compareAndSet(true, false)) { rc = KeeperException.Code.CONNECTIONLOSS.intValue(); } if (rc == KeeperException.Code.OK.intValue()) { final String node = CreateBuilderImpl.findNode(strings, "/", protectedId); // due to namespacing, don't let CreateBuilderImpl.findNode adjust the path if (node != null) { try { String deletePath = client .unfixForNamespace(ZKPaths.makePath(namespaceAdjustedParentPath, node)); client.delete().guaranteed().inBackground().forPath(deletePath); } catch (Exception e) { ThreadUtils.checkInterrupted(e); log.error("Could not start guaranteed delete for node: " + node); rc = KeeperException.Code.CONNECTIONLOSS.intValue(); } } } if (rc != KeeperException.Code.OK.intValue()) { CuratorEventImpl event = new CuratorEventImpl(client, CuratorEventType.CHILDREN, rc, path, null, o, stat, null, strings, null, null); client.processBackgroundOperation(operationAndData, event); } } }; client.getZooKeeper().getChildren(namespaceAdjustedParentPath, false, callback, null); }
From source file:org.apache.curator.framework.imps.GetDataBuilderImpl.java
License:Apache License
@Override public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception { try {/*from w w w.j a v a2s . com*/ final OperationTrace trace = client.getZookeeperClient() .startAdvancedTracer("GetDataBuilderImpl-Background"); AsyncCallback.DataCallback callback = new AsyncCallback.DataCallback() { @Override public void processResult(int rc, String path, Object ctx, byte[] data, Stat stat) { trace.setReturnCode(rc).setResponseBytesLength(data).setPath(path) .setWithWatcher(watching.getWatcher() != null).setStat(stat).commit(); if (decompress && (data != null)) { try { data = client.getCompressionProvider().decompress(path, data); } catch (Exception e) { ThreadUtils.checkInterrupted(e); log.error("Decompressing for path: " + path, e); rc = KeeperException.Code.DATAINCONSISTENCY.intValue(); } } CuratorEvent event = new CuratorEventImpl(client, CuratorEventType.GET_DATA, rc, path, null, ctx, stat, data, null, null, null); client.processBackgroundOperation(operationAndData, event); } }; if (watching.isWatched()) { client.getZooKeeper().getData(operationAndData.getData(), true, callback, backgrounding.getContext()); } else { client.getZooKeeper().getData(operationAndData.getData(), watching.getWatcher(), callback, backgrounding.getContext()); } } catch (Throwable e) { backgrounding.checkError(e); } }