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https://issues.apache.org/jira/browse/HBASE-14247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14702555#comment-14702555
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Vladimir Rodionov commented on HBASE-14247:
-------------------------------------------
{quote}
Suggestions are welcomed
{quote}
Increase *dfs.block.size* :) Having separate dir for every server is a good
idea.
> Separate the old WALs into different regionserver directories
> -------------------------------------------------------------
>
> Key: HBASE-14247
> URL: https://issues.apache.org/jira/browse/HBASE-14247
> Project: HBase
> Issue Type: Improvement
> Reporter: Liu Shaohui
> Assignee: Liu Shaohui
> Priority: Minor
>
> Currently all old WALs of regionservers are achieved into the single
> directory of oldWALs. In big clusters, because of long TTL of WAL or disabled
> replications, the number of files under oldWALs may reach the
> max-directory-items limit of HDFS, which will make the hbase cluster crashed.
> {quote}
> Caused by:
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.FSLimitException$MaxDirectoryItemsExceededException):
> The directory item limit of /hbase/lgprc-xiaomi/.oldlogs is exceeded:
> limit=1048576 items=1048576
> {quote}
> A simple solution is to separate the old WALs into different directories
> according to the server name of the WAL.
> Suggestions are welcomed~ Thanks
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