Examples with ServerName org.apache.hadoop.hbase.ServerName used on opensource projects

Example 36 with ServerName

use of org.apache.hadoop.hbase.ServerName in project hbase by apache.

the class RegionSplitter method getRegionServerCount.

/**
   * Alternative getCurrentNrHRS which is no longer available.
   * @param connection
   * @return Rough count of regionservers out on cluster.
   * @throws IOException 
   */
private static int getRegionServerCount(final Connection connection) throws IOException {
    try (Admin admin = connection.getAdmin()) {
        ClusterStatus status = admin.getClusterStatus();
        Collection<ServerName> servers = status.getServers();
        return servers == null || servers.isEmpty() ? 0 : servers.size();
    }
}

Example 37 with ServerName

use of org.apache.hadoop.hbase.ServerName in project hbase by apache.

the class RegionServerTracker method nodeDeleted.

@Override
public void nodeDeleted(String path) {
    if (path.startsWith(watcher.znodePaths.rsZNode)) {
        String serverName = ZKUtil.getNodeName(path);
        LOG.info("RegionServer ephemeral node deleted, processing expiration [" + serverName + "]");
        ServerName sn = ServerName.parseServerName(serverName);
        if (!serverManager.isServerOnline(sn)) {
            LOG.warn(serverName.toString() + " is not online or isn't known to the master." + "The latter could be caused by a DNS misconfiguration.");
            return;
        }
        remove(sn);
        this.serverManager.expireServer(sn);
    }
}

Example 38 with ServerName

use of org.apache.hadoop.hbase.ServerName in project hbase by apache.

the class AbstractFSWALProvider method getServerNameFromWALDirectoryName.

/**
   * This function returns region server name from a log file name which is in one of the following
   * formats:
   * <ul>
   * <li>hdfs://&lt;name node&gt;/hbase/.logs/&lt;server name&gt;-splitting/...</li>
   * <li>hdfs://&lt;name node&gt;/hbase/.logs/&lt;server name&gt;/...</li>
   * </ul>
   * @return null if the passed in logFile isn't a valid WAL file path
   */
public static ServerName getServerNameFromWALDirectoryName(Path logFile) {
    String logDirName = logFile.getParent().getName();
    // We were passed the directory and not a file in it.
    if (logDirName.equals(HConstants.HREGION_LOGDIR_NAME)) {
        logDirName = logFile.getName();
    }
    ServerName serverName = null;
    if (logDirName.endsWith(SPLITTING_EXT)) {
        logDirName = logDirName.substring(0, logDirName.length() - SPLITTING_EXT.length());
    }
    try {
        serverName = ServerName.parseServerName(logDirName);
    } catch (IllegalArgumentException | IllegalStateException ex) {
        serverName = null;
        LOG.warn("Cannot parse a server name from path=" + logFile + "; " + ex.getMessage());
    }
    if (serverName != null && serverName.getStartcode() < 0) {
        LOG.warn("Invalid log file path=" + logFile);
        serverName = null;
    }
    return serverName;
}

Example 39 with ServerName

use of org.apache.hadoop.hbase.ServerName in project hbase by apache.

the class RequestConverter method buildRegionOpenInfo.

/**
   * Create a RegionOpenInfo based on given region info and version of offline node
   */
private static RegionOpenInfo buildRegionOpenInfo(final HRegionInfo region, final List<ServerName> favoredNodes, Boolean openForReplay) {
    RegionOpenInfo.Builder builder = RegionOpenInfo.newBuilder();
    builder.setRegion(HRegionInfo.convert(region));
    if (favoredNodes != null) {
        for (ServerName server : favoredNodes) {
            builder.addFavoredNodes(ProtobufUtil.toServerName(server));
        }
    }
    if (openForReplay != null) {
        builder.setOpenForDistributedLogReplay(openForReplay);
    }
    return builder.build();
}

Example 40 with ServerName

use of org.apache.hadoop.hbase.ServerName in project hbase by apache.

the class MasterAddressTracker method deleteIfEquals.

/**
   * delete the master znode if its content is same as the parameter
   * @param zkw must not be null
   * @param content must not be null
   */
public static boolean deleteIfEquals(ZooKeeperWatcher zkw, final String content) {
    if (content == null) {
        throw new IllegalArgumentException("Content must not be null");
    }
    try {
        Stat stat = new Stat();
        byte[] data = ZKUtil.getDataNoWatch(zkw, zkw.znodePaths.masterAddressZNode, stat);
        ServerName sn = ProtobufUtil.parseServerNameFrom(data);
        if (sn != null && content.equals(sn.toString())) {
            return (ZKUtil.deleteNode(zkw, zkw.znodePaths.masterAddressZNode, stat.getVersion()));
        }
    } catch (KeeperException e) {
        LOG.warn("Can't get or delete the master znode", e);
    } catch (DeserializationException e) {
        LOG.warn("Can't get or delete the master znode", e);
    }
    return false;
}