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[HDFS-7055] Add tracing to DFSInputStream - HDFS - [issue]
...Add tracing to DFSInputStream....
http://issues.apache.org/jira/browse/HDFS-7055    Author: Colin Patrick McCabe, 2015-04-06, 20:43
[HDFS-6917] Add an hdfs debug command to validate blocks, call recoverlease, etc. - HDFS - [issue]
...HDFS should have a debug command which could validate HDFS block files, call recoverLease, and have some other functionality.  These commands would be purely for debugging and would app...
http://issues.apache.org/jira/browse/HDFS-6917    Author: Colin Patrick McCabe, 2015-04-03, 18:56
[HDFS-8026] Trace FSOutputSummer#writeChecksumChunks rather than DFSOutputStream#writeChunk - HDFS - [issue]
...We should trace FSOutputSummer#writeChecksumChunks rather than DFSOutputStream#writeChunk.  When tracing writeChunk, we get a new trace span every 512 bytes; when tracing writeChecksumC...
http://issues.apache.org/jira/browse/HDFS-8026    Author: Colin Patrick McCabe, 2015-04-02, 15:57
[HDFS-7744] Fix potential NPE in DFSInputStream after setDropBehind or setReadahead is called - HDFS - [issue]
...Fix a potential NPE in DFSInputStream after setDropBehind or setReadahead is called.  These functions clear the blockReader, but don't set blockEnd to -1, which could lead to DFSInputSt...
http://issues.apache.org/jira/browse/HDFS-7744    Author: Colin Patrick McCabe, 2015-04-01, 20:27
[HDFS-7790] Do not create optional fields in DFSInputStream unless they are needed - HDFS - [issue]
...DFSInputStream#oneByteBuffer and DFSInputStream#extendedReadBuffers are only used some of the time, and they are always used under the positional lock.  Let's create them on demand to s...
http://issues.apache.org/jira/browse/HDFS-7790    Author: Colin Patrick McCabe, 2015-04-01, 20:27
[HDFS-7938] OpensslSecureRandom.c pthread_threadid_np usage signature is wrong on 32-bit Mac - HDFS - [issue]
...In OpensslSecureRandom.c, pthread_threadid_np is being used with an unsigned long, but the type signature requires a uint64_t....
http://issues.apache.org/jira/browse/HDFS-7938    Author: Colin Patrick McCabe, 2015-03-30, 17:50
[HDFS-6450] Support non-positional hedged reads in HDFS - HDFS - [issue]
...HDFS-5776 added support for hedged positional reads.  We should also support hedged non-position reads (aka regular reads)....
http://issues.apache.org/jira/browse/HDFS-6450    Author: Colin Patrick McCabe, 2015-03-26, 21:12
[HDFS-7965] TestTracing#testWriteTraceHooks is flaky - HDFS - [issue]
...TestTracing#testWriteTraceHooks is flaky.  It seems to be timing out in trunk....
http://issues.apache.org/jira/browse/HDFS-7965    Author: Colin Patrick McCabe, 2015-03-26, 18:50
[HDFS-7846] Create off-heap BlocksMap and BlockData structures - HDFS - [issue]
...Create off-heap BlocksMap, BlockInfo, and DataNodeInfo structures.  The BlocksMap will use the off-heap hash table....
http://issues.apache.org/jira/browse/HDFS-7846    Author: Colin Patrick McCabe, 2015-03-10, 21:00
[HDFS-7844] Create an off-heap hash table implementation - HDFS - [issue]
...Create an off-heap hash table implementation....
http://issues.apache.org/jira/browse/HDFS-7844    Author: Colin Patrick McCabe, 2015-03-10, 13:07
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB