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[HBASE-4389] Address lots of issues with migration from 90 to trunk - HBase - [issue]
...Looking over the migration code that removes HTD from HRI, there are lots of issues. This JIRA is to redo this code in a way that will be less bug prone, and also future proof....
http://issues.apache.org/jira/browse/HBASE-4389    Author: Todd Lipcon, 2014-01-27, 17:39
[HBASE-2647] TestLogRolling flaky in trunk - HBase - [issue]
...Saw this failure on my Hudson:org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying to locate root region because: Failed setting up proxy to /192.168.42.22:44708 after...
http://issues.apache.org/jira/browse/HBASE-2647    Author: Todd Lipcon, 2014-01-26, 22:16
[HBASE-3666] TestScannerTimeout fails occasionally - HBase - [issue]
...LeaseExceptionIf I loop TestScannerTimeout, it eventually fails with:org.apache.hadoop.hbase.regionserver.LeaseException: org.apache.hadoop.hbase.regionserver.LeaseException: lease '-4526340...
http://issues.apache.org/jira/browse/HBASE-3666    Author: Todd Lipcon, 2013-12-30, 03:38
[expand - 1 more] - Re: Please welcome our newest committer, Liang Xie! - HBase - [mail # dev]
...Congrats Liang!  -Todd   On Wed, Dec 18, 2013 at 4:53 PM, Ted Yu  wrote:     Todd Lipcon Software Engineer, Cloudera...
   Author: Todd Lipcon, 2013-12-19, 00:56
[HBASE-4364] Filters applied to columns not in the selected column list are ignored - HBase - [issue]
...For a scan, if you select some set of columns using addColumns(), and then apply a SingleColumnValueFilter that restricts the results based on some other columns which aren't selected, then ...
http://issues.apache.org/jira/browse/HBASE-4364    Author: Todd Lipcon, 2013-12-18, 22:41
[HBASE-5945] Reduce buffer copies in IPC server response path - HBase - [issue]
...The new PB code is sloppy with buffers and makes several needless copies. This increases GC time a lot. A few simple changes can cut this back down....
http://issues.apache.org/jira/browse/HBASE-5945    Author: Todd Lipcon, 2013-12-16, 18:46
Re: Adding frameworks and coding for testabilitywas [Re: Testing the fix for race condition between Compaction and StoreScanner.init] - HBase - [mail # dev]
...I haven't seen the particular "framework" in question, but I do think there's a continuum of reasonable choices here, ranging from full DI and using mocks/spys, to using AspectJ for AOP, to ...
   Author: Todd Lipcon, 2013-11-22, 23:06
[HBASE-4393] Implement a canary monitoring program - HBase - [issue]
...This JIRA is to implement a standalone program that can be used to do "canary monitoring" of a running HBase cluster. This program would gather a list of the regions in the cluster, then ite...
http://issues.apache.org/jira/browse/HBASE-4393    Author: Todd Lipcon, 2013-10-15, 05:46
[HBASE-4231] Flush regions in multiple threads - HBase - [issue]
...As servers get beefier, it makes less and less sense to have only a single thread do flushes at a time. In watching an insert-only benchmark run, HBase isn't currently disk, network, or CPU-...
http://issues.apache.org/jira/browse/HBASE-4231    Author: Todd Lipcon, 2013-09-23, 17:53
[HBASE-5897] prePut coprocessor hook causing substantial CPU usage - HBase - [issue]
...I was running an insert workload against trunk under oprofile and saw that a significant portion of CPU usage was going to calling the "prePut" coprocessor hook inside doMiniBatchPut, even t...
http://issues.apache.org/jira/browse/HBASE-5897    Author: Todd Lipcon, 2013-09-18, 23:15
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB