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[HBASE-5693] When creating a region, the master initializes it and creates a memstore within the master server - HBase - [issue]
...I didn't do a complete analysis, but the attached patch saves more than 0.25s for each region creation and locally all the unit tests work....
http://issues.apache.org/jira/browse/HBASE-5693    Author: nkeywal, 2013-02-26, 08:23
[HBASE-5572] KeeperException.SessionExpiredException management could be improved in Master - HBase - [issue]
...Synthesis: 1) TestMasterZKSessionRecovery distinguish two cases on SessionExpiredException. One is explicitly not managed. However, is seems that there is no reason for this. 2) Th...
http://issues.apache.org/jira/browse/HBASE-5572    Author: nkeywal, 2013-02-26, 07:11
[HBASE-7879] JUnit dependency in main from htrace - HBase - [issue]
...HTrace main depends on Junit , it should be only test.I created a junit in the github, that's https://github.com/cloudera/htrace/issues/1. If it's not fixed, we will be able to drop it in ou...
http://issues.apache.org/jira/browse/HBASE-7879    Author: nkeywal, 2013-02-25, 11:16
[HBASE-6626] Add a chapter on HDFS in the troubleshooting section of the HBase reference guide. - HBase - [issue]
...I looked mainly at the major failure case, but here is what I have:New sub chapter in the existing chapter "Troubleshooting and Debugging HBase": "HDFS & HBASE"1) HDFS & HBase2) Conn...
http://issues.apache.org/jira/browse/HBASE-6626    Author: nkeywal, 2013-02-18, 10:37
[HBASE-6490] 'dfs.client.block.write.retries' value could be increased in HBase - HBase - [issue]
...When allocating a new node during writing, hdfs tries 'dfs.client.block.write.retries' times (default 3) to write the block. When it fails, it goes back to the nanenode for a new list, and r...
http://issues.apache.org/jira/browse/HBASE-6490    Author: nkeywal, 2013-02-17, 18:30
[HBASE-7856] HTU#waitTableAvailable should have a default value of 30s - HBase - [issue]
...It's often used with 5s delay. It's not enough in my env as I parallelize heavily the tests. 30s default seems to make it....
http://issues.apache.org/jira/browse/HBASE-7856    Author: nkeywal, 2013-02-17, 04:15
[HBASE-7861] Use the ServerName in the Connection#getClient and Connection#getAdmin code - HBase - [issue]
...This is again a subpart of HBASE-7590. The patch already in HBASE-7590 contains a bad fix for this (confusion with seq number). This JIRA tries to fix it correctly.The client code mostly use...
http://issues.apache.org/jira/browse/HBASE-7861    Author: nkeywal, 2013-02-17, 01:35
[HBASE-7407] TestMasterFailover under tests some cases and over tests some others - HBase - [issue]
...The tests are done with this settings:    conf.setInt("hbase.master.assignment.timeoutmonitor.period", 2000);    conf.setInt("hbase.master.assignment.timeoutmon...
http://issues.apache.org/jira/browse/HBASE-7407    Author: nkeywal, 2013-02-12, 12:35
[HBASE-7789] Clean DeadServer.java and add a Jitter method in ConnectionUtils - HBase - [issue]
...I need to do some changes in DeadServer because of HBASE-7590. To minimize the patch size and simplifies the feedback, I prefer to isolate the issue.Changes are: Add the time when the server...
http://issues.apache.org/jira/browse/HBASE-7789    Author: nkeywal, 2013-02-12, 12:35
[HBASE-7815] Too subtle behavior for HConnection#getRegionLocation reload parameter and performance risk - HBase - [issue]
...HConnection#getRegionLocation(table, row, reload=true) and HConnection#getRegionLocation(table, row, reload=false) are not equivalent when the cache is empty: the first will check the table ...
http://issues.apache.org/jira/browse/HBASE-7815    Author: nkeywal, 2013-02-11, 22:25
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