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https://issues.apache.org/jira/browse/HBASE-1601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12727807#action_12727807
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Amandeep Khurana commented on HBASE-1601:
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Yes, I tried the tweaks suggested on the Performance Tuning page but got the
same error again.
Here are the details of my setup:
8 nodes + 1 master
8GB RAM on the slaves, 16GB on the master
Heap size for HBase - 3GB
File limit - 10240 (both hard and soft)
There is not much data in this HBase instance yet. I'm facing the problem
during the loading operation.
> Region server going down as a result of expiration by ZK
> --------------------------------------------------------
>
> Key: HBASE-1601
> URL: https://issues.apache.org/jira/browse/HBASE-1601
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.20.0
> Reporter: Amandeep Khurana
> Fix For: 0.20.0
>
> Attachments: master.log, regionserver2.log,
> regionserver_on_zk_failure_node.log, web_ui.log, web_ui2.log, web_ui3.log,
> zk.log
>
>
> During an MR job, ZK expires one of the nodes. This results in losing contact
> with a region server and eventually the map task timing out and the job
> failing.
> Attaching the following logs:
> 1. HBase master logs
> 2. Logs from the web UI
> 3. Logs from the particular RS that went down.
> 4. Logs from the particular node that ZK expired.
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