Examples with Stat org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.data.Stat used on opensource projects

Example 91 with Stat

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.data.Stat in project fabric8 by jboss-fuse.

the class FabricMBeanRegistrationListener method registerDomains.

private void registerDomains() throws Exception {
    String runtimeIdentity = runtimeProperties.get().getRuntimeIdentity();
    String domainsNode = CONTAINER_DOMAINS.getPath(runtimeIdentity);
    try {
        Stat stat = exists(curator.get(), domainsNode);
        if (stat != null) {
            try {
                deleteSafe(curator.get(), domainsNode);
            } catch (IllegalStateException e) {
                handleException(e);
            }
        }
        synchronized (this) {
            domains.addAll(Arrays.asList(mbeanServer.get().getDomains()));
            for (String domain : domains) {
                try {
                    setData(curator.get(), CONTAINER_DOMAIN.getPath(runtimeIdentity, domain), "", CreateMode.EPHEMERAL);
                } catch (IllegalStateException e) {
                    handleException(e);
                }
            }
        }
    } catch (IllegalStateException e) {
        handleException(e);
    }
}

Example 92 with Stat

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.data.Stat in project fabric8 by jboss-fuse.

the class FabricMBeanRegistrationListener method updateProcessId.

private void updateProcessId() {
    try {
        // TODO: this is Sun JVM specific ...
        // String processName = (String) mbeanServer.get().getAttribute(new ObjectName("java.lang:type=Runtime"), "Name");
        String processName = ManagementFactory.getRuntimeMXBean().getName();
        Long processId = Long.parseLong(processName.split("@")[0]);
        String runtimeIdentity = runtimeProperties.get().getRuntimeIdentity();
        String path = ZkPath.CONTAINER_PROCESS_ID.getPath(runtimeIdentity);
        Stat stat = exists(curator.get(), path);
        if (stat != null) {
            if (stat.getEphemeralOwner() != curator.get().getZookeeperClient().getZooKeeper().getSessionId()) {
                delete(curator.get(), path);
                if (processId != null) {
                    create(curator.get(), path, processId.toString(), CreateMode.EPHEMERAL);
                }
            }
        } else {
            if (processId != null) {
                create(curator.get(), path, processId.toString(), CreateMode.EPHEMERAL);
            }
        }
    } catch (IllegalStateException e) {
        handleException(e);
    } catch (Exception ex) {
        LOGGER.error("Error while updating the process id.", ex);
    }
}

Example 93 with Stat

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.data.Stat in project accumulo by apache.

the class MiniAccumuloClusterImpl method start.

/**
 * Starts Accumulo and Zookeeper processes. Can only be called once.
 */
@Override
public synchronized void start() throws IOException, InterruptedException {
    if (config.useMiniDFS() && miniDFS == null) {
        throw new IllegalStateException("Cannot restart mini when using miniDFS");
    }
    MiniAccumuloClusterControl control = getClusterControl();
    if (config.useExistingInstance()) {
        Configuration acuConf = config.getAccumuloConfiguration();
        Configuration hadoopConf = config.getHadoopConfiguration();
        ConfigurationCopy cc = new ConfigurationCopy(acuConf);
        VolumeManager fs;
        try {
            fs = VolumeManagerImpl.get(cc, hadoopConf);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        Path instanceIdPath = Accumulo.getAccumuloInstanceIdPath(fs);
        String instanceIdFromFile = ZooUtil.getInstanceIDFromHdfs(instanceIdPath, cc, hadoopConf);
        IZooReaderWriter zrw = new ZooReaderWriterFactory().getZooReaderWriter(cc.get(Property.INSTANCE_ZK_HOST), (int) cc.getTimeInMillis(Property.INSTANCE_ZK_TIMEOUT), cc.get(Property.INSTANCE_SECRET));
        String rootPath = ZooUtil.getRoot(instanceIdFromFile);
        String instanceName = null;
        try {
            for (String name : zrw.getChildren(Constants.ZROOT + Constants.ZINSTANCES)) {
                String instanceNamePath = Constants.ZROOT + Constants.ZINSTANCES + "/" + name;
                byte[] bytes = zrw.getData(instanceNamePath, new Stat());
                String iid = new String(bytes, UTF_8);
                if (iid.equals(instanceIdFromFile)) {
                    instanceName = name;
                }
            }
        } catch (KeeperException e) {
            throw new RuntimeException("Unable to read instance name from zookeeper.", e);
        }
        if (instanceName == null)
            throw new RuntimeException("Unable to read instance name from zookeeper.");
        config.setInstanceName(instanceName);
        if (!AccumuloStatus.isAccumuloOffline(zrw, rootPath))
            throw new RuntimeException("The Accumulo instance being used is already running. Aborting.");
    } else {
        if (!initialized) {
            Runtime.getRuntime().addShutdownHook(new Thread() {

                @Override
                public void run() {
                    try {
                        MiniAccumuloClusterImpl.this.stop();
                    } catch (IOException e) {
                        log.error("IOException while attempting to stop the MiniAccumuloCluster.", e);
                    } catch (InterruptedException e) {
                        log.error("The stopping of MiniAccumuloCluster was interrupted.", e);
                    }
                }
            });
        }
        if (!config.useExistingZooKeepers())
            control.start(ServerType.ZOOKEEPER);
        if (!initialized) {
            if (!config.useExistingZooKeepers()) {
                // sleep a little bit to let zookeeper come up before calling init, seems to work better
                long startTime = System.currentTimeMillis();
                while (true) {
                    Socket s = null;
                    try {
                        s = new Socket("localhost", config.getZooKeeperPort());
                        s.setReuseAddress(true);
                        s.getOutputStream().write("ruok\n".getBytes());
                        s.getOutputStream().flush();
                        byte[] buffer = new byte[100];
                        int n = s.getInputStream().read(buffer);
                        if (n >= 4 && new String(buffer, 0, 4).equals("imok"))
                            break;
                    } catch (Exception e) {
                        if (System.currentTimeMillis() - startTime >= config.getZooKeeperStartupTime()) {
                            throw new ZooKeeperBindException("Zookeeper did not start within " + (config.getZooKeeperStartupTime() / 1000) + " seconds. Check the logs in " + config.getLogDir() + " for errors.  Last exception: " + e);
                        }
                        // Don't spin absurdly fast
                        Thread.sleep(250);
                    } finally {
                        if (s != null)
                            s.close();
                    }
                }
            }
            LinkedList<String> args = new LinkedList<>();
            args.add("--instance-name");
            args.add(config.getInstanceName());
            args.add("--user");
            args.add(config.getRootUserName());
            args.add("--clear-instance-name");
            // If we aren't using SASL, add in the root password
            final String saslEnabled = config.getSiteConfig().get(Property.INSTANCE_RPC_SASL_ENABLED.getKey());
            if (null == saslEnabled || !Boolean.parseBoolean(saslEnabled)) {
                args.add("--password");
                args.add(config.getRootPassword());
            }
            Process initProcess = exec(Initialize.class, args.toArray(new String[0]));
            int ret = initProcess.waitFor();
            if (ret != 0) {
                throw new RuntimeException("Initialize process returned " + ret + ". Check the logs in " + config.getLogDir() + " for errors.");
            }
            initialized = true;
        }
    }
    log.info("Starting MAC against instance {} and zookeeper(s) {}.", config.getInstanceName(), config.getZooKeepers());
    control.start(ServerType.TABLET_SERVER);
    int ret = 0;
    for (int i = 0; i < 5; i++) {
        ret = exec(Main.class, SetGoalState.class.getName(), MasterGoalState.NORMAL.toString()).waitFor();
        if (ret == 0)
            break;
        sleepUninterruptibly(1, TimeUnit.SECONDS);
    }
    if (ret != 0) {
        throw new RuntimeException("Could not set master goal state, process returned " + ret + ". Check the logs in " + config.getLogDir() + " for errors.");
    }
    control.start(ServerType.MASTER);
    control.start(ServerType.GARBAGE_COLLECTOR);
    if (null == executor) {
        executor = Executors.newSingleThreadExecutor();
    }
}

Example 94 with Stat

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.data.Stat in project accumulo by apache.

the class Master method getMergeInfo.

public MergeInfo getMergeInfo(Table.ID tableId) {
    synchronized (mergeLock) {
        try {
            String path = ZooUtil.getRoot(getInstance().getInstanceID()) + Constants.ZTABLES + "/" + tableId + "/merge";
            if (!ZooReaderWriter.getInstance().exists(path))
                return new MergeInfo();
            byte[] data = ZooReaderWriter.getInstance().getData(path, new Stat());
            DataInputBuffer in = new DataInputBuffer();
            in.reset(data, data.length);
            MergeInfo info = new MergeInfo();
            info.readFields(in);
            return info;
        } catch (KeeperException.NoNodeException ex) {
            log.info("Error reading merge state, it probably just finished");
            return new MergeInfo();
        } catch (Exception ex) {
            log.warn("Unexpected error reading merge state", ex);
            return new MergeInfo();
        }
    }
}

Example 95 with Stat

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.data.Stat in project fabric8 by jboss-fuse.

the class KarafContainerRegistration method checkAlive.

private void checkAlive() throws Exception {
    RuntimeProperties sysprops = runtimeProperties.get();
    String runtimeIdentity = sysprops.getRuntimeIdentity();
    String nodeAlive = CONTAINER_ALIVE.getPath(runtimeIdentity);
    Stat stat = exists(curator.get(), nodeAlive);
    if (stat != null) {
        if (stat.getEphemeralOwner() != curator.get().getZookeeperClient().getZooKeeper().getSessionId()) {
            delete(curator.get(), nodeAlive);
            create(curator.get(), nodeAlive, CreateMode.EPHEMERAL);
        }
    } else {
        create(curator.get(), nodeAlive, CreateMode.EPHEMERAL);
    }
}