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[HBASE-1849] HTable doesn't work well at the core of a multi-threaded server; e.g. webserver - HBase - [issue]
...HTable must do the following:+ Sit in a shell or simple client – e.g. Map or Reduce task – and feed and read from HBase single-threadedly.  It does this job OK.+ Sit at core...
http://issues.apache.org/jira/browse/HBASE-1849    Author: stack, 2014-07-19, 01:46
[HBASE-2237] [performance] Reading from memory only we can't use all CPU. - HBase - [issue]
...From the list from Erik Rozendaal:We're getting about 2500 gets/sec max per regionserver when it serves data from the block cache using HBase 0.20.3. All data is in the same region and the r...
http://issues.apache.org/jira/browse/HBASE-2237    Author: stack, 2014-07-19, 01:44
[HBASE-3390] Double-close makes for double-assign of a region - HBase - [issue]
...I see double-assign during a rolling restart test.  Its happening when master joins existing cluster... half the RSs have reported in but its taking on splits anyways (I have it splitti...
http://issues.apache.org/jira/browse/HBASE-3390    Author: stack, 2014-07-19, 01:40
[HBASE-695] Add passing of filter state across regions - HBase - [issue]
...Discussion on list arrived at need for filters to carry cross-region state.  For example, if you are looking for sufficient rows to fill the fifth page of a set of results and a particu...
http://issues.apache.org/jira/browse/HBASE-695    Author: stack, 2014-07-19, 01:39
[HBASE-3247] Changes API: API for pulling edits from HBase - HBase - [issue]
...Talking to Shay from Elastic Search, he was asking where the Changes API is in HBase.  Talking more – there was a bit of beer involved so apologize up front – he wants to be...
http://issues.apache.org/jira/browse/HBASE-3247    Author: stack, 2014-07-19, 01:29
[HBASE-5696] Use Hadoop's DataOutputOutputStream instead of have a copy local - HBase - [issue]
http://issues.apache.org/jira/browse/HBASE-5696    Author: stack, 2014-07-18, 19:25
[HBASE-2889] Tool to look at HLogs -- parse and tail -f - HBase - [issue]
...We need a tool for looking at wals.  A tail -f would be sweet though it might be ugly having to open each time it wants to dump next lot of edits out wal log.From Kannan:20:45 <kanna...
http://issues.apache.org/jira/browse/HBASE-2889    Author: stack, 2014-07-18, 18:19
[HBASE-11520] Simplify offheap cache config by removing the confusing "hbase.bucketcache.percentage.in.combinedcache" - HBase - [issue]
...Remove "hbase.bucketcache.percentage.in.combinedcache".  It is unnecessary complication of block cache config.  Let L1 config setup be as it is whether a L2 present or not, just se...
http://issues.apache.org/jira/browse/HBASE-11520    Author: stack, 2014-07-17, 21:51
[HBASE-2743] Script to drop N regions from a table and then patch hole the hole by inserting a new hole spanning region to meta. - HBase - [issue]
...Script to help out our mozilla buddies....
http://issues.apache.org/jira/browse/HBASE-2743    Author: stack, 2014-07-17, 17:54
[HBASE-2217] VM OPTS for shell only - HBase - [issue]
...Over in hbase-2177 Ryan goes on how enabling gc logging, it shows on stdout when you fire the shell:so one problem with this is the irb then logs all GC to stdout, which is ugly.  I do ...
http://issues.apache.org/jira/browse/HBASE-2217    Author: stack, 2014-07-17, 13:08
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