[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-tabpanelfocusedCommentId=13251825#comment-13251825
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Ionut Ignatescu commented on HBASE-5768:


Thanks!

 Question about configuring HBase file size
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 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-tabpanelfocusedCommentId=13204823#comment-13204823
 ] 

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
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 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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