/// <exception cref="System.IO.IOException"/>
private void ParseConfAndFindOtherNN()
{
Configuration conf = GetConf();
nsId = DFSUtil.GetNamenodeNameServiceId(conf);
if (!HAUtil.IsHAEnabled(conf, nsId))
{
throw new HadoopIllegalArgumentException("HA is not enabled for this namenode.");
}
nnId = HAUtil.GetNameNodeId(conf, nsId);
NameNode.InitializeGenericKeys(conf, nsId, nnId);
if (!HAUtil.UsesSharedEditsDir(conf))
{
throw new HadoopIllegalArgumentException("Shared edits storage is not enabled for this namenode."
);
}
Configuration otherNode = HAUtil.GetConfForOtherNode(conf);
otherNNId = HAUtil.GetNameNodeId(otherNode, nsId);
otherIpcAddr = NameNode.GetServiceAddress(otherNode, true);
Preconditions.CheckArgument(otherIpcAddr.Port != 0 && !otherIpcAddr.Address.IsAnyLocalAddress
(), "Could not determine valid IPC address for other NameNode (%s)" + ", got: %s"
, otherNNId, otherIpcAddr);
string scheme = DFSUtil.GetHttpClientScheme(conf);
otherHttpAddr = DFSUtil.GetInfoServerWithDefaultHost(otherIpcAddr.GetHostName(),
otherNode, scheme).ToURL();
dirsToFormat = FSNamesystem.GetNamespaceDirs(conf);
editUrisToFormat = FSNamesystem.GetNamespaceEditsDirs(conf, false);
sharedEditsUris = FSNamesystem.GetSharedEditsDirs(conf);
}
public static Org.Apache.Hadoop.Hdfs.Tools.DFSZKFailoverController Create(Configuration
conf)
{
Configuration localNNConf = DFSHAAdmin.AddSecurityConfiguration(conf);
string nsId = DFSUtil.GetNamenodeNameServiceId(conf);
if (!HAUtil.IsHAEnabled(localNNConf, nsId))
{
throw new HadoopIllegalArgumentException("HA is not enabled for this namenode.");
}
string nnId = HAUtil.GetNameNodeId(localNNConf, nsId);
if (nnId == null)
{
string msg = "Could not get the namenode ID of this node. " + "You may run zkfc on the node other than namenode.";
throw new HadoopIllegalArgumentException(msg);
}
NameNode.InitializeGenericKeys(localNNConf, nsId, nnId);
DFSUtil.SetGenericConf(localNNConf, nsId, nnId, ZkfcConfKeys);
NNHAServiceTarget localTarget = new NNHAServiceTarget(localNNConf, nsId, nnId);
return(new Org.Apache.Hadoop.Hdfs.Tools.DFSZKFailoverController(localNNConf, localTarget
));
}