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From "John Vines (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-683) Accumulo ignores HDFS max replication configuration
Date Wed, 09 Oct 2013 19:52:41 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13790766#comment-13790766
] 

John Vines commented on ACCUMULO-683:
-------------------------------------

Correct, you can override this by setting the table replication for the !METADATA table after
you init. However, it is not advised because you really want to have that extra reliability
for the !METADATA.

> Accumulo ignores HDFS max replication configuration
> ---------------------------------------------------
>
>                 Key: ACCUMULO-683
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-683
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.4.1
>            Reporter: Jim Klucar
>            Priority: Minor
>             Fix For: 1.4.2, 1.5.0
>
>
> I setup a new 1.4.1 instance that was running on top of a Hadoop installation that had
the maximum block replications set to 3 and the following error showed up on the monitor page.
> java.io.IOException: failed to create file /accumulo/tables/!0/table_info/F0000001.rf_tmp
on client 127.0.0.1. Requested replication 5 exceeds maximum 3 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:1220)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:1123) at
org.apache.hadoop.hdfs.server.namenode.NameNode.create(NameNode.java:551) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:523) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1383)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1379) at java.security.AccessController.doPrivileged(Native
Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1377)
> Tablet server error is:
> 10 10:56:25,408 [tabletserver.MinorCompactor] WARN : MinC failed (java.io.IOException:
failed to create file /accumulo/tables/!0/
> table_info/F0000001.rf_tmp on client 127.0.0.1.
> Requested replication 5 exceeds maximum 3
>         at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:1220)
>         at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:1123)
>         at org.apache.hadoop.hdfs.server.namenode.NameNode.create(NameNode.java:551)
>         at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:523)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1383)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1379)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:396)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1377)
> ) to create /accumulo/tables/!0/table_info/F0000001.rf_tmp retrying ...



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