Example usage for org.apache.zookeeper KeeperException code

List of usage examples for org.apache.zookeeper KeeperException code

  1. HOME
  2. Java
  3. org.apache.zookeeper
  4. org.apache.zookeeper.*
  5. KeeperException
  6. code

Introduction

In this page you can find the example usage for org.apache.zookeeper KeeperException code.

Prototype

Code code

To view the source code for org.apache.zookeeper KeeperException code.

Click Source Link

Usage

From source file:com.ery.estorm.zk.RecoverableZooKeeper.java

License:Apache License

private String createSequential(String path, byte[] data, List<ACL> acl, CreateMode createMode)
        throws KeeperException, InterruptedException, IOException {
    RetryCounter retryCounter = retryCounterFactory.create();
    boolean first = true;
    String newPath = path + this.identifier;
    while (true) {
        try {// w  w  w  . j  a v a  2 s .c  o  m
            if (!first) {
                // Check if we succeeded on a previous attempt
                String previousResult = findPreviousSequentialNode(newPath);
                if (previousResult != null) {
                    return previousResult;
                }
            }
            first = false;
            return zk.create(newPath, data, acl, createMode);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case SESSIONEXPIRED:
                reconnectAfterExpiration();
            case OPERATIONTIMEOUT:
                retryOrThrow(retryCounter, e, "create");
                break;

            default:
                throw e;
            }
        }
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.ery.estorm.zk.RecoverableZooKeeper.java

License:Apache License

/**
 * Run multiple operations in a transactional manner. Retry before throwing
 * exception//from w  ww.ja  v a2s  . c  om
 * 
 * @throws IOException
 */
public List<OpResult> multi(Iterable<Op> ops) throws KeeperException, InterruptedException, IOException {
    TraceScope traceScope = null;
    try {
        traceScope = Trace.startSpan("RecoverableZookeeper.multi");
        RetryCounter retryCounter = retryCounterFactory.create();
        Iterable<Op> multiOps = prepareZKMulti(ops);
        while (true) {
            try {
                return zk.multi(multiOps);
            } catch (KeeperException e) {
                switch (e.code()) {
                case CONNECTIONLOSS:
                case SESSIONEXPIRED:
                    reconnectAfterExpiration();
                case OPERATIONTIMEOUT:
                    retryOrThrow(retryCounter, e, "multi");
                    break;

                default:
                    throw e;
                }
            }
            retryCounter.sleepUntilNextRetry();
            retryCounter.useRetry();
        }
    } finally {
        if (traceScope != null)
            traceScope.close();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public void delete(String path, int version) throws InterruptedException, KeeperException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {/*from   ww w . j  a v a 2s . c om*/
            zk.delete(path, version);
            return;
        } catch (KeeperException e) {
            switch (e.code()) {
            case NONODE:
                return; // Delete was successful

            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper delete failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public Stat exists(String path, Watcher watcher) throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {/*from www.  j a  va  2 s  .  c  o m*/
            return zk.exists(path, watcher);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper exists failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public Stat exists(String path, boolean watch) throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {/* www .j a  v a2  s  .c  o  m*/
            return zk.exists(path, watch);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper exists failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public byte[] getData(String path, Watcher watcher, Stat stat) throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {/*from  w  w w . jav  a  2 s .com*/
            return zk.getData(path, watcher, stat);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper getData failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public byte[] getData(String path, boolean watch, Stat stat) throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {/*from  w  ww. j a v  a2  s.  c  o m*/
            return zk.getData(path, watch, stat);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper getData failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public Stat setData(String path, byte[] data, int version) throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {//from w ww .ja  va2  s.com
            return zk.setData(path, data, version);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper setData failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public List<String> getChildren(String path, Watcher watcher) throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {/*w ww  .j av a  2 s .  c om*/
            return zk.getChildren(path, watcher);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error(
                            "ZooKeeper getChildren failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

@Override
public List<String> getChildren(String path, boolean watch) throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {//  www.  j a v a 2s  .c om
            return zk.getChildren(path, watch);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error(
                            "ZooKeeper getChildren failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}