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[HBASE-13567] [DLR] Region stuck in recovering mode - HBase - [issue]
...On the hosting server, it says:2015-04-24 22:47:27,736 DEBUG [PriorityRpcServer.handler=2,queue=0,port=16020] ipc.RpcServer: PriorityRpcServer.handler=2,queue=0,port=16020: callId: 84 servic...
http://issues.apache.org/jira/browse/HBASE-13567    Author: stack, 2015-04-26, 05:12
[HBASE-13556] In assignment, treat system tables as 'special'; assign after hbase:meta and before user-space tables - HBase - [issue]
...Long time ago, back in HBASE-8015, we noted that 'system tables' should be treated special when assigning; they should go out after hbase:meta and before userspace tables and that we should ...
http://issues.apache.org/jira/browse/HBASE-13556    Author: stack, 2015-04-24, 21:58
[HBASE-13389] [REGRESSION] HBASE-12600 undoes skip-mvcc parse optimizations - HBase - [issue]
...HBASE-12600 moved the edit sequenceid from tags to instead exploit the mvcc/sequenceid slot in a key. Now Cells near-always have an associated mvcc/sequenceid where previous it was rare or t...
http://issues.apache.org/jira/browse/HBASE-13389    Author: stack, 2015-04-24, 06:09
[HBASE-13535] Regions go unassigned when meta-carrying RS is killed - HBase - [issue]
...hbase-1.1 will be the first release with DLR on by default. I've been running  ITBLLs on a cluster trying to find issues with DLR. My first few runs ran nicely... but the current run fa...
http://issues.apache.org/jira/browse/HBASE-13535    Author: stack, 2015-04-23, 06:43
[HBASE-3138] When new master joins running cluster but meta is yanked from it as processing RIT, gets unexpected state - HBase - [issue]
...Testing rolling restart i turned up the following condition.Master is joining an extant cluster and is trying to clean up RIT.  Then the server hosting .META. is shutdown in the middle ...
http://issues.apache.org/jira/browse/HBASE-3138    Author: stack, 2015-04-22, 01:45
[HBASE-13487] Doc KEEP_DELETED_CELLS - HBase - [issue]
...Let me doc this nice feature that has been around a long time but is not explained other than in Lars lectures. I was talking to someone and could not explain this feature myself until Lars ...
http://issues.apache.org/jira/browse/HBASE-13487    Author: stack, 2015-04-18, 06:53
[HBASE-13307] Making methods under ScannerV2#next inlineable, faster - HBase - [issue]
...See parent issue for patch and evidence.I was looking at graphs of our scan and found that methods were 'too big' to be inlined (looking at jvm compilation and inlining output flags – ...
http://issues.apache.org/jira/browse/HBASE-13307    Author: stack, 2015-04-17, 20:06
[HBASE-13291] Lift the scan ceiling - HBase - [issue]
...Scanning medium sized rows with multiple concurrent scanners exhibits interesting 'ceiling' properties. A server runs at about 6.7k ops a second using 450% of possible 1600% of CPUs  wh...
http://issues.apache.org/jira/browse/HBASE-13291    Author: stack, 2015-04-17, 01:08
[HBASE-12116] Hot contention spots; writing - HBase - [issue]
...Playing with flight recorder, here are some write-time contentious synchronizations/locks (picture coming)...
http://issues.apache.org/jira/browse/HBASE-12116    Author: stack, 2015-04-15, 11:50
[HBASE-11927] If java7, use zip crc - HBase - [issue]
...Up in hadoop they have this change. Let me publish some graphs to show that it makes a difference (CRC is a massive amount of our CPU usage in my profiling of an upload because of compacting...
http://issues.apache.org/jira/browse/HBASE-11927    Author: stack, 2015-04-14, 01:03
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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