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[HBASE-5626] Compactions simulator tool for proofing algorithms
...A tool to run compaction simulations would be a nice to have. We could use it to see how well an algo ran under different circumstances loaded w/ different value types with different ...
, 2014-07-20, 19:47
[HBASE-11548] [PE] Add 'cycling' test N times and unit tests for size/zipf/valueSize calculations
...Small PE diff to add a cycles argument so can have a small test run a long time against same keyset....
, 2014-07-19, 11:31
[HBASE-3046] EOFE replaying recovered.edits
...We're seeing an EOFE playing recovered.edits file loading region. See http://permalink.gmane.org/gmane.comp.java.hadoop.hbase.user/12312 thread. I took a look. It looks lik...
, 2014-07-19, 02:10
[HBASE-2796] Backport of 2707 to 0.20 branch
...Backport the hbase-2707 fix to the 0.20 branch. If 2707 happens, it hoses cluster......
, 2014-07-19, 02:04
[HBASE-3458] Fix possibility of deadlock waiting on -ROOT- deploy
...HBASE-3449 'Server shutdown handlers deadlocked waiting for META' describes case where we could block waiting on ROOT deploy but all of the handlers on master are occupied waiting on ROOT le...
, 2014-07-19, 01:47
[HBASE-1849] HTable doesn't work well at the core of a multi-threaded server; e.g. webserver
...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...
, 2014-07-19, 01:46
[HBASE-2237] [performance] Reading from memory only we can't use all CPU.
...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...
, 2014-07-19, 01:44
[HBASE-3390] Double-close makes for double-assign of a region
...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...
, 2014-07-19, 01:40
[HBASE-695] Add passing of filter state across regions
...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...
, 2014-07-19, 01:39
[HBASE-3247] Changes API: API for pulling edits from HBase
...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...
, 2014-07-19, 01:29
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