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[HBASE-5000] Speed up simultaneous reads of a block when block caching is turned off - HBase - [issue]
...With block caching, when one client starts reading a block and another one comes around asking for the same block, the second client waits for the first one to finish reading and returns the...
http://issues.apache.org/jira/browse/HBASE-5000    Author: Mikhail Bautin, 2013-12-12, 21:04
[HBASE-5813] Retry immediately after a NotServingRegionException in a multiput - HBase - [issue]
...After we get some errors in a multiput we invalidate the region location cache and wait for the configured time interval according to the backoff policy. However, if all "errors" in multiput...
http://issues.apache.org/jira/browse/HBASE-5813    Author: Mikhail Bautin, 2013-11-06, 11:50
[HBASE-5261] Update HBase for Java 7 - HBase - [issue]
...We need to make sure that HBase compiles and works with JDK 7. Once we verify it is reasonably stable, we can explore utilizing the G1 garbage collector. When all deployments are ready to mo...
http://issues.apache.org/jira/browse/HBASE-5261    Author: Mikhail Bautin, 2013-09-04, 23:26
[HBASE-6913] Implement new data block encoding algorithm that combines the advantages of FAST_DIFF and DIFF_KEY - HBase - [issue]
...We have noticed that both FAST_DIFF and DIFF_KEY encoding algorithms have some drawbacks in that they don't take advantage of certain types of redundancies in keys/values. We need to impleme...
http://issues.apache.org/jira/browse/HBASE-6913    Author: Mikhail Bautin, 2013-08-23, 00:33
[HBASE-4863] Make Thrift server thread pool bounded and add a command-line UI test - HBase - [issue]
...This started as an internal hotfix where we found out that the Thrift server spawned 15000 threads. To bound the thread pool size I added a custom thread pool server implementation called HB...
http://issues.apache.org/jira/browse/HBASE-4863    Author: Mikhail Bautin, 2013-07-12, 12:16
[HBASE-6808] Add the ability to query region flush time and current time to regionserver Thrift API - HBase - [issue]
...In order to do reliable bulk load with WAL turned off through the C++ API we need to be able to query last flush times for all regions on a regionserver as well as the current time on the se...
http://issues.apache.org/jira/browse/HBASE-6808    Author: Mikhail Bautin, 2013-06-28, 17:31
[HBASE-6807] Pass regionserver name from client to Thrift server embedded in the regionserver - HBase - [issue]
...We don't always need to look up region by row on the server side in the Thrift server embedded in the regionserver, because the client already has the region name. We can send the region nam...
http://issues.apache.org/jira/browse/HBASE-6807    Author: Mikhail Bautin, 2013-06-28, 17:29
[HBASE-5263] Preserving cached data on compactions through cache-on-write - HBase - [issue]
...We are tackling HBASE-3976 and HBASE-5230 to make sure we don't trash the block cache on compactions if cache-on-write is enabled. However, it would be ideal to reduce the effect compactions...
http://issues.apache.org/jira/browse/HBASE-5263    Author: Mikhail Bautin, 2013-04-11, 23:31
[HBASE-4465] Lazy-seek optimization for StoreFile scanners - HBase - [issue]
...Previously, if we had several StoreFiles for a column family in a region, we would seek in each of them and only then merge the results, even though the row/column we are looking for might o...
http://issues.apache.org/jira/browse/HBASE-4465    Author: Mikhail Bautin, 2013-03-05, 08:32
[HBASE-7946] Support VLong counters - HBase - [issue]
...Currently increment and incrementColumnValue operations only support 64-bit counters. Supporting VLong counters would be useful in cases when the majority of counters would fit in less than ...
http://issues.apache.org/jira/browse/HBASE-7946    Author: Mikhail Bautin, 2013-02-27, 02:25
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