[jira] [Commented] (HBASE-5768) Question about configuring HBase file size

[Ionut Ignatescu (Commented) (JIRA)]

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https://issues.apache.org/jira/browse/HBASE-5768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251825#comment-13251825
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Ionut Ignatescu commented on HBASE-5768:


Thanks!

> Question about configuring HBase file size
> --
>
> Key: HBASE-5768
> URL: https://issues.apache.org/jira/browse/HBASE-5768
> Project: HBase
>  Issue Type: Task
>Reporter: Ionut Ignatescu
>
> My use-case: I have several HBase tables in which entries are pushed 
> constantly(300k entries/5min,6-7Gb/day). I started with tables splitted in 32 
> regions.
> File size is currently set to 1Gb. I'm using this tables to perfom real-time 
> scans via a web app. 
> Problem: Sometimes,but pretty frequently tables are frozen and I get scanner 
> timeout exception.I found in logs that many splits and compactions are 
> performing and I think this are the cause. If I stop pushing data into 
> tables, are scans are running ok.
> Could you provide me some advices to do in order to avoid this problem?

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[jira] [Commented] (HBASE-5362) ZK connection leak

[Ionut Ignatescu (Commented) (JIRA)]

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https://issues.apache.org/jira/browse/HBASE-5362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204823#comment-13204823
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Ionut Ignatescu commented on HBASE-5362:


No,I can't. We have a different version deployed on our Hadoop cluster, so it's 
almost impossible to perform this test.
Anyway, thanks for your suggestion, I'll look into source to check.

> ZK connection leak
> --
>
> Key: HBASE-5362
> URL: https://issues.apache.org/jira/browse/HBASE-5362
> Project: HBase
>  Issue Type: Bug
>  Components: mapreduce
>Affects Versions: 0.90.3
>Reporter: Ionut Ignatescu
>
> I have an application like a scheduler that starts periodically some MR jobs 
> that reads from one HBase table and write in more tables, changing the row 
> key and the columns list. 
> I have encounted a problem with this: after each MR job, I have +1 
> connections open to ZK and after a period of time, I have received 
> IOException. I saw that I am not the first that had had this problem, but I 
> didn't see any fix. No in HBase 0.90.4, nor in HBase 0.92.
> To fix this issue I wrote a custom TableInputFormat that forces to close the 
> connection to ZK after each getSplits call. 
> Also, the initTableMapperJob was overwritten.
> I found an open JIRA issue here: 
> https://issues.apache.org/jira/browse/HBASE-3792
> Regards,
> Ionut I. 

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