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HDFS-9937. Update dfsadmin command line help and HdfsQuotaAdminGuide. Contributed by Kai Sasaki. 

(cherry picked from commit 25f0a9b3ab)
This commit is contained in:
Wei-Chiu Chuang 2016-07-26 08:00:32 -07:00
parent e5a4b6cb94
commit 0ee1644e39
2 changed files with 22 additions and 7 deletions
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22
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSAdmin.java
View File

@ -165,7 +165,7 @@ private static class SetQuotaCommand extends DFSAdminCommand {
private static final String NAME = "setQuota";
private static final String USAGE =
"-"+NAME+" <quota> <dirname>...<dirname>";
private static final String DESCRIPTION =
private static final String DESCRIPTION =
"-setQuota <quota> <dirname>...<dirname>: " +
"Set the quota <quota> for each directory <dirName>.\n" +
"\t\tThe directory quota is a long integer that puts a hard limit\n" +
@ -217,7 +217,13 @@ private static class ClearSpaceQuotaCommand extends DFSAdminCommand {
"\t\t1. the directory does not exist or is a file, or\n" +
"\t\t2. user is not an administrator.\n" +
"\t\tIt does not fault if the directory has no quota.\n" +
"\t\tThe storage type specific quota is cleared when -storageType option is specified.";
"\t\tThe storage type specific quota is cleared when -storageType option is specified." +
"\t\tAvailable storageTypes are \n" +
"\t\t- RAM_DISK\n" +
"\t\t- DISK\n" +
"\t\t- SSD\n" +
"\t\t- ARCHIVE";
private StorageType type;
@ -275,7 +281,12 @@ private static class SetSpaceQuotaCommand extends DFSAdminCommand {
"\t\t1. quota is not a positive integer or zero, or\n" +
"\t\t2. user is not an administrator, or\n" +
"\t\t3. the directory does not exist or is a file.\n" +
"\t\tThe storage type specific quota is set when -storageType option is specified.\n";
"\t\tThe storage type specific quota is set when -storageType option is specified.\n" +
"\t\tAvailable storageTypes are \n" +
"\t\t- RAM_DISK\n" +
"\t\t- DISK\n" +
"\t\t- SSD\n" +
"\t\t- ARCHIVE";
private long quota; // the quota to be set
private StorageType type;
@ -570,7 +581,7 @@ public void report(String[] argv, int i) throws IOException {
/**
* Safe mode maintenance command.
* Usage: hdfs dfsadmin -safemode [enter | leave | get]
* Usage: hdfs dfsadmin -safemode [enter | leave | get | wait | forceExit]
* @param argv List of of command line parameters.
* @param idx The index of the command that is being processed.
* @exception IOException if the filesystem does not exist.
@ -1778,7 +1789,8 @@ private static void printUsage(String cmd) {
+ " [-refreshCallQueue]");
} else if ("-reconfig".equals(cmd)) {
System.err.println("Usage: hdfs dfsadmin"
+ " [-reconfig <namenode|datanode> <host:port> <start|status>]");
+ " [-reconfig <namenode|datanode> <host:port> "
+ "<start|status|properties>]");
} else if ("-refresh".equals(cmd)) {
System.err.println("Usage: hdfs dfsadmin"
+ " [-refresh <hostname:port> <resource_identifier> [arg1..argn]");

7
hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsQuotaAdminGuide.md
View File

@ -100,14 +100,17 @@ Quotas are managed by a set of commands available only to the administrator.
gigabytes and 2t for 2 terabytes etc. Best effort for each
directory, with faults reported if N is neither zero nor a positive
integer, the directory does not exist or it is a file, or the
directory would immediately exceed the new quota.
directory would immediately exceed the new quota. The storage type
specific quota is set when -storageType option is specified. Available
storageTypes are RAM_DISK,DISK,SSD,ARCHIVE.
* `hdfs dfsadmin -clrSpaceQuota -storageType <storagetype> <directory>...<directory>`
Remove storage type quota specified for each directory. Best effort
for each directory, with faults reported if the directory does not exist or
it is a file. It is not a fault if the directory has no storage type quota on
for storage type specified.
for storage type specified. The storage type specific quota is cleared when -storageType
option is specified. Available storageTypes are RAM_DISK,DISK,SSD,ARCHIVE.
Reporting Command
-----------------