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[HBASE-16765] New SteppingRegionSplitPolicy, avoid too aggressive spread of regions for small tables.
...We just did some experiments on some larger clusters and found that while using IncreasingToUpperBoundRegionSplitPolicy generally works well and is very convenient, it does tend to produce t...
, 2016-11-07, 22:30
[PHOENIX-3204] Scanner lease timeout exception during UPSERT INTO t1 SELECT * FROM t2
...We ran some larg'ish Phoenix tests on a larg'ish cluster.We had loaded 1bn rows into table t1 and tried to load the same data into a different table t2. The UPSERT failed about 1/2 way throu...
, 2016-11-02, 22:35
[HBASE-14613] Remove MemStoreChunkPool?
...I just stumbled across MemStoreChunkPool. The idea behind is to reuse chunks of allocations rather than letting the GC handle this.Now, it's off by default, and it seems to me to be of dubio...
, 2016-10-07, 04:26
[PHOENIX-3195] Slight safety improvement for using DistinctPrefixFilter
...There is a very slight improvement to when we should use the DistinctPrefixFilter in its current form.Currently we check for the absence of WhereConditions, but what we really mean to make s...
, 2016-09-28, 05:15
[PHOENIX-3323] make_rc script fails to build the RC
...cp: will not overwrite just-created '/tmp/phoenix/dev/../release/apache-phoenix-4.8.1-HBase-0.98/apache-phoenix-4.8.1-HBase-0.98-bin/phoenix-core-4.8.1-HBase-0.98.jar' with './phoenix-core/t...
, 2016-09-23, 04:37
[PHOENIX-3294] Support approximate COUNT(*) by using stats.
, 2016-09-19, 01:39
[PHOENIX-3225] Distinct Queries are slower than expected at scale.
...In our large scale tests we found that we can easily sort 400G on a few 100 machines, but that a simple DISTINCT would just time out. Perhaps that's expected as we have to keep track of the ...
, 2016-09-19, 01:38
[PHOENIX-3262] When dropping a local index, delete the column family instead of individual rows.
...Currently when Phoenix drops a local index it places a delete marker for every single row, instead we can just drop the L#<x> column family.HBaseAdmin.deleteColumn in 0.98. And HBaseAd...
, 2016-09-12, 05:40
[PHOENIX-3228] Index tables should not be configured with a custom/smaller MAX_FILESIZE
...I do not think we should do this. The default of 10G is chosen to keep HBase happy. For smaller tables or initially until the index gets large it might lead to more index regions and hence b...
, 2016-09-08, 22:42
[PHOENIX-2785] Do not store NULLs for immutable tables
...Currently we always store Delete markers (or explicit Nulls). For immutable tables that is not necessary. Null is not distinguishable from an absent column....
, 2016-09-07, 23:02
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