Java Code Examples for org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper#getData()

The following examples show how to use org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper#getData() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: BackupUtils.java    From spliceengine with GNU Affero General Public License v3.0 5 votes vote down vote up 
public static boolean shouldCaptureIncrementalChanges(FileSystem fs,Path rootDir) throws StandardException{
    boolean shouldRegister = false;
    try {
        boolean enabled = incrementalBackupEnabled();
        if (enabled) {
            RecoverableZooKeeper zooKeeper = ZkUtils.getRecoverableZooKeeper();
            String spliceBackupPath = BackupUtils.getBackupPath();
            if (zooKeeper.exists(spliceBackupPath, false)==null){
                return false;
            }
            boolean isRestoreMode = SIDriver.driver().lifecycleManager().isRestoreMode();
            if (!isRestoreMode) {
                if (BackupUtils.existsDatabaseBackup(fs, rootDir)) {
                    if (LOG.isDebugEnabled()) {
                        SpliceLogUtils.debug(LOG, "There exists a successful full or incremental backup in the system");
                    }
                    shouldRegister = true;
                } else {
                    List<String> backupJobs = zooKeeper.getChildren(spliceBackupPath, false);
                    for (String backupId : backupJobs) {
                        String path = spliceBackupPath + "/" + backupId;
                        byte[] data = zooKeeper.getData(path, false, null);
                        BackupJobStatus status = BackupJobStatus.parseFrom(data);
                        if (status.getScope() == BackupJobStatus.BackupScope.DATABASE) {
                            if (LOG.isDebugEnabled()) {
                                SpliceLogUtils.debug(LOG, "A database backup is running");
                            }
                            shouldRegister = true;
                        }
                    }
                }
            }
        }
        return shouldRegister;
    }
    catch (Exception e) {
        e.printStackTrace();
        throw StandardException.plainWrapException(e);
    }
}
Example 2
Source File: ReplicationMonitorChore.java    From spliceengine with GNU Affero General Public License v3.0 5 votes vote down vote up 
private long getMasterTimestamp() throws IOException, KeeperException, InterruptedException {
    String masterClusterKey = getClusterKey(masterCluster);
    Configuration conf = ReplicationUtils.createConfiguration(masterClusterKey);

    try (ZKWatcher masterZkw = new ZKWatcher(conf, "replication monitor", null, false)) {
        RecoverableZooKeeper rzk = masterZkw.getRecoverableZooKeeper();
        String rootNode = HConfiguration.getConfiguration().getSpliceRootPath();
        String node = rootNode + HConfiguration.MAX_RESERVED_TIMESTAMP_PATH;
        byte[] data = rzk.getData(node, false, null);
        long ts = Bytes.toLong(data);
        return ts;
    }
}
Example 3
Source File: OlapServerMaster.java    From spliceengine with GNU Affero General Public License v3.0 5 votes vote down vote up 
private void publishServer(RecoverableZooKeeper rzk, String hostname, int port) throws InterruptedException, KeeperException {
    try {
        HostAndPort hostAndPort = HostAndPort.fromParts(hostname, port);
        queueZkPath = rzk.getZooKeeper().create(queueZkPath, Bytes.toBytes(hostAndPort.toString()),
                ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL_SEQUENTIAL);
        rzk.getData(queueZkPath, new QueueWatcher(), null);
    } catch (Exception e) {
        LOG.error("Couldn't register OlapServer due to unexpected exception", e);
        throw e;
    }
}