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From "Brandon Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6455) NFS: Exception should be added in NFS log for invalid separator in allowed.hosts
Date Tue, 15 Jul 2014 20:10:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14062574#comment-14062574
] 

Brandon Li commented on HDFS-6455:
----------------------------------

Sorry for the late reply. The time out is possibly due to this code in the patch:
{noformat}
+      if (hostsMatcher != null) {
+        hostsMatchers.add(hostsMatcher);
+        out = MountResponse.writeExportList(out, xid, exports, hostsMatchers);
+      }
{noformat}

If hostMatcher is null, it doesn't send response back.
I would suggest fixing HDFS-6456 first since it will fix part of the problem. After patch
to HDFS-6456 is committed, this problem will be easier to fix.


> NFS: Exception should be added in NFS log for invalid separator in allowed.hosts
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-6455
>                 URL: https://issues.apache.org/jira/browse/HDFS-6455
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: nfs
>    Affects Versions: 2.2.0
>            Reporter: Yesha Vora
>         Attachments: HDFS-6455.patch
>
>
> The error for invalid separator in dfs.nfs.exports.allowed.hosts property should be added
in nfs log file instead nfs.out file.
> Steps to reproduce:
> 1. Pass invalid separator in dfs.nfs.exports.allowed.hosts
> {noformat}
> <property><name>dfs.nfs.exports.allowed.hosts</name><value>host1
 ro:host2 rw</value></property>
> {noformat}
> 2. restart NFS server. NFS server fails to start and print exception console.
> {noformat}
> [hrt_qa@host1 hwqe]$ ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null
host1 "sudo su - -c \"/usr/lib/hadoop/sbin/hadoop-daemon.sh start nfs3\" hdfs"
> starting nfs3, logging to /tmp/log/hadoop/hdfs/hadoop-hdfs-nfs3-horst1.out
> DEPRECATED: Use of this script to execute hdfs command is deprecated.
> Instead use the hdfs command for it.
> Exception in thread "main" java.lang.IllegalArgumentException: Incorrectly formatted
line 'host1 ro:host2 rw'
> 	at org.apache.hadoop.nfs.NfsExports.getMatch(NfsExports.java:356)
> 	at org.apache.hadoop.nfs.NfsExports.<init>(NfsExports.java:151)
> 	at org.apache.hadoop.nfs.NfsExports.getInstance(NfsExports.java:54)
> 	at org.apache.hadoop.hdfs.nfs.nfs3.RpcProgramNfs3.<init>(RpcProgramNfs3.java:176)
> 	at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.<init>(Nfs3.java:43)
> 	at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.main(Nfs3.java:59)
> {noformat}
> NFS log does not print any error message. It directly shuts down. 
> {noformat}
> STARTUP_MSG:   java = 1.6.0_31
> ************************************************************/
> 2014-05-27 18:47:13,972 INFO  nfs3.Nfs3Base (SignalLogger.java:register(91)) - registered
UNIX signal handlers for [TERM, HUP, INT]
> 2014-05-27 18:47:14,169 INFO  nfs3.IdUserGroup (IdUserGroup.java:updateMapInternal(159))
- Updated user map size:259
> 2014-05-27 18:47:14,179 INFO  nfs3.IdUserGroup (IdUserGroup.java:updateMapInternal(159))
- Updated group map size:73
> 2014-05-27 18:47:14,192 INFO  nfs3.Nfs3Base (StringUtils.java:run(640)) - SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down Nfs3 at 
> {noformat}
> NFS.out file has exception.
> {noformat}
> EPRECATED: Use of this script to execute hdfs command is deprecated.
> Instead use the hdfs command for it.
> Exception in thread "main" java.lang.IllegalArgumentException: Incorrectly formatted
line 'host1 ro:host2 rw'
>         at org.apache.hadoop.nfs.NfsExports.getMatch(NfsExports.java:356)
>         at org.apache.hadoop.nfs.NfsExports.<init>(NfsExports.java:151)
>         at org.apache.hadoop.nfs.NfsExports.getInstance(NfsExports.java:54)
>         at org.apache.hadoop.hdfs.nfs.nfs3.RpcProgramNfs3.<init>(RpcProgramNfs3.java:176)
>         at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.<init>(Nfs3.java:43)
>         at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.main(Nfs3.java:59)
> ulimit -a for user hdfs
> core file size          (blocks, -c) 409600
> data seg size           (kbytes, -d) unlimited
> scheduling priority             (-e) 0
> file size               (blocks, -f) unlimited
> pending signals                 (-i) 188893
> max locked memory       (kbytes, -l) unlimited
> max memory size         (kbytes, -m) unlimited
> open files                      (-n) 32768
> pipe size            (512 bytes, -p) 8
> POSIX message queues     (bytes, -q) 819200
> real-time priority              (-r) 0
> stack size              (kbytes, -s) 10240
> cpu time               (seconds, -t) unlimited
> max user processes              (-u) 65536
> virtual memory          (kbytes, -v) unlimited
> file locks                      (-x) unlimited
> {noformat}



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