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[HBASE-16890] Analyze the performance of AsyncWAL and fix the same
...Tests reveal that AsyncWAL under load in single node cluster performs slower than the Default WAL. This task is to analyze and see if we could fix it.See some discussions in the tail of JIRA...
, 2016-10-26, 13:08
[HBASE-16783] Use ByteBufferPool for the header and message during Rpc response
...With ByteBufferPool in place we could avoid the byte creation in RpcServer#createHeaderAndMessageBytes and try using the Buffer from the pool rather than creating byte every time....
, 2016-10-26, 11:48
[HBASE-16436] Add the CellChunkMap variant
...This sub-task is specifically to add the CellChunkMap created by Anastasia Braginsky and Eshcar Hillel with specific tests and integrate it with the in memory flush/compaction flow....
, 2016-10-26, 07:20
[HBASE-16438] Create a cell type so that chunk id is embedded in it
...For CellChunkMap we may need a cell such that the chunk out of which it was created, the id of the chunk be embedded in it so that when doing flattening we can use the chunk id as a meta dat...
, 2016-10-26, 07:09
[HBASE-16880] Correct the javadoc/behaviour of the APIs in ByteBufferUtils
...There are some issues either with the javadoc or the actual behaviour of some APIs in BBUtils.For eg,BBUtil#copyFromBufferToBuffer() says /** * Copy one buffer's whole data...
, 2016-10-25, 10:23
[HBASE-15789] PB related changes to work with offheap
...This is an issue to brainstorm. Whether we go with pb 2.x or pb 3.0 and also depends on the shading of protobuf classes. We should also decide if we are going to fork the PB classes....
, 2016-10-25, 05:04
[HBASE-16891] Try copying to the Netty ByteBuf directly from the WALEdit
...-> The FanOutOneBlockAsyncDFSOutput is a much sophisticated dfs client model that works with Netty ByteBuf. Here we hold on connection to the datanodes usingNetty Channels. And the idea i...
, 2016-10-25, 05:01
[HBASE-16911] Log Roller does not add proper logs on the size of the old HLog file
... LOG.info("Rolled WAL " + FSUtils.getPath(oldPath) + " with entries=" + oldNumEntries + ", filesize=" + StringUtils.byteDe...
, 2016-10-21, 15:19
[HBASE-16859] Use Bytebuffer pool for non java clients specifically for scans/gets
...In case of non java clients we still write the results and header into a on demand byte. This can be changed to use the BBPool (onheap or offheap buffer?).But the basic problem is to...
, 2016-10-18, 06:32
[HBASE-16782] Create compaction specific writer that are of type ShipperListener
...In HBASE-16372, there was a discussion around having Compaction specific writers so that only those writers are of type ShipperListener. Though some of the patches attached there was able to...
, 2016-10-17, 08:39
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