HDFS-12067. Correct dfsadmin commands usage message to reflects IPC port. Contributed by steven-wugang.
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@ -1113,29 +1113,39 @@ public class DFSAdmin extends FsShell {
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"\tor gets a list of reconfigurable properties.\n" +
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"\tThe second parameter specifies the node type\n";
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String genericRefresh = "-refresh: Arguments are <hostname:port> <resource_identifier> [arg1..argn]\n" +
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"\tTriggers a runtime-refresh of the resource specified by <resource_identifier>\n" +
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"\ton <hostname:port>. All other args after are sent to the host.\n";
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String genericRefresh = "-refresh: Arguments are <hostname:ipc_port>" +
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" <resource_identifier> [arg1..argn]\n" +
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"\tTriggers a runtime-refresh of the resource specified by " +
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"<resource_identifier> on <hostname:ipc_port>.\n" +
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"\tAll other args after are sent to the host.\n" +
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"\tThe ipc_port is determined by 'dfs.datanode.ipc.address'," +
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"default is DFS_DATANODE_IPC_DEFAULT_PORT.\n";
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String printTopology = "-printTopology: Print a tree of the racks and their\n" +
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"\t\tnodes as reported by the Namenode\n";
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String refreshNamenodes = "-refreshNamenodes: Takes a datanodehost:port as argument,\n"+
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"\t\tFor the given datanode, reloads the configuration files,\n" +
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"\t\tstops serving the removed block-pools\n"+
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"\t\tand starts serving new block-pools\n";
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String refreshNamenodes = "-refreshNamenodes: Takes a " +
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"datanodehost:ipc_port as argument,For the given datanode\n" +
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"\t\treloads the configuration files,stops serving the removed\n" +
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"\t\tblock-pools and starts serving new block-pools.\n" +
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"\t\tThe ipc_port is determined by 'dfs.datanode.ipc.address'," +
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"default is DFS_DATANODE_IPC_DEFAULT_PORT.\n";
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String getVolumeReport = "-getVolumeReport: Takes a datanodehost:port as "
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+ "argument,\n\t\tFor the given datanode, get the volume report\n";
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String getVolumeReport = "-getVolumeReport: Takes a datanodehost:ipc_port"+
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" as argument,For the given datanode,get the volume report.\n" +
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"\t\tThe ipc_port is determined by 'dfs.datanode.ipc.address'," +
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"default is DFS_DATANODE_IPC_DEFAULT_PORT.\n";
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String deleteBlockPool = "-deleteBlockPool: Arguments are datanodehost:port, blockpool id\n"+
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"\t\t and an optional argument \"force\". If force is passed,\n"+
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"\t\t block pool directory for the given blockpool id on the given\n"+
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"\t\t datanode is deleted along with its contents, otherwise\n"+
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"\t\t the directory is deleted only if it is empty. The command\n" +
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"\t\t will fail if datanode is still serving the block pool.\n" +
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"\t\t Refer to refreshNamenodes to shutdown a block pool\n" +
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"\t\t service on a datanode.\n";
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String deleteBlockPool = "-deleteBlockPool: Arguments are " +
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"datanodehost:ipc_port, blockpool id and an optional argument\n" +
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"\t\t\"force\". If force is passed,block pool directory for\n" +
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"\t\tthe given blockpool id on the given datanode is deleted\n" +
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"\t\talong with its contents,otherwise the directory is deleted\n"+
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"\t\tonly if it is empty.The command will fail if datanode is\n" +
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"\t\tstill serving the block pool.Refer to refreshNamenodes to\n" +
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"\t\tshutdown a block pool service on a datanode.\n" +
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"\t\tThe ipc_port is determined by 'dfs.datanode.ipc.address'," +
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"default is DFS_DATANODE_IPC_DEFAULT_PORT.\n";
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String setBalancerBandwidth = "-setBalancerBandwidth <bandwidth>:\n" +
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"\tChanges the network bandwidth used by each datanode during\n" +
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@ -1893,23 +1903,24 @@ public class DFSAdmin extends FsShell {
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+ " [-refreshCallQueue]");
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} else if ("-reconfig".equals(cmd)) {
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System.err.println("Usage: hdfs dfsadmin"
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+ " [-reconfig <namenode|datanode> <host:port> "
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+ " [-reconfig <namenode|datanode> <host:ipc_port> "
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+ "<start|status|properties>]");
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} else if ("-refresh".equals(cmd)) {
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System.err.println("Usage: hdfs dfsadmin"
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+ " [-refresh <hostname:port> <resource_identifier> [arg1..argn]");
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+ " [-refresh <hostname:ipc_port> "
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+ "<resource_identifier> [arg1..argn]");
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} else if ("-printTopology".equals(cmd)) {
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System.err.println("Usage: hdfs dfsadmin"
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+ " [-printTopology]");
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} else if ("-refreshNamenodes".equals(cmd)) {
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System.err.println("Usage: hdfs dfsadmin"
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+ " [-refreshNamenodes datanode-host:port]");
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+ " [-refreshNamenodes datanode-host:ipc_port]");
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} else if ("-getVolumeReport".equals(cmd)) {
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System.err.println("Usage: hdfs dfsadmin"
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+ " [-getVolumeReport datanode-host:port]");
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+ " [-getVolumeReport datanode-host:ipc_port]");
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} else if ("-deleteBlockPool".equals(cmd)) {
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System.err.println("Usage: hdfs dfsadmin"
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+ " [-deleteBlockPool datanode-host:port blockpoolId [force]]");
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+ " [-deleteBlockPool datanode-host:ipc_port blockpoolId [force]]");
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} else if ("-setBalancerBandwidth".equals(cmd)) {
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System.err.println("Usage: hdfs dfsadmin"
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+ " [-setBalancerBandwidth <bandwidth in bytes per second>]");
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