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[HDFS-7445] Implement packet memory pool in output stream in libhdfs3 - HDFS - [issue]
...Implement a packet memory pool instead of allocating packet dynamically. A packet memory pool can guard against overcommit and avoid the cost of allocation for output stream in libhdfs3....
http://issues.apache.org/jira/browse/HDFS-7445    Author: Zhanwei Wang, 2014-12-09, 01:50
[expand - 4 more] - Re: Switching to Java 7 - HDFS - [mail # dev]
...On 8 December 2014 at 19:58, Colin McCabe  wrote:all we should really need to do is to force a unique build ID on everybuild so that it's not the 3.0.0-SNAPSHOT that is needed. We'd hav...
   Author: Steve Loughran, 2014-12-08, 23:00
[HDFS-5894] Refactor a private internal class DataTransferEncryptor.SaslParticipant - HDFS - [issue]
...It is appropriate to use polymorphism for SaslParticipant instead of scattering if-else statements....
http://issues.apache.org/jira/browse/HDFS-5894    Author: Hiroshi Ikeda, 2014-12-08, 22:53
[HDFS-7493] removedDst should be checked against null in finally block of FSDirRenameOp#unprotectedRenameTo() - HDFS - [issue]
...          removedDst = dstIIP.getLastINode();          undoRemoveDst = true;If removedDst is null, the following code in finally b...
http://issues.apache.org/jira/browse/HDFS-7493    Author: Ted Yu, 2014-12-08, 22:22
[HDFS-7492] If multiple threads call FsVolumeList#checkDirs at the same time, we should only do checkDirs once and give the results to all waiting threads - HDFS - [issue]
...checkDirs is called when we encounter certain I/O errors.  It's rare to get just a single I/O error... normally you start getting many errors when a disk is going bad.  For this re...
http://issues.apache.org/jira/browse/HDFS-7492    Author: Colin Patrick McCabe, 2014-12-08, 22:18
[HDFS-7441] More accurate detection for slow node in HDFS write pipeline - HDFS - [issue]
...A DN could be slow due to OS or HW issues. HDFS write pipeline sometimes couldn't detect the slow DN correctly. Detection for "slow node" might not be specific to HDFS write pipeline. When a...
http://issues.apache.org/jira/browse/HDFS-7441    Author: Ming Ma, 2014-12-08, 19:22
[HDFS-7281] Missing block is marked as corrupted block - HDFS - [issue]
...In the situation where the block lost all its replicas, fsck shows the block is missing as well as corrupted. Perhaps it is better not to mark the block corrupted in this case. The reason it...
http://issues.apache.org/jira/browse/HDFS-7281    Author: Ming Ma, 2014-12-08, 17:54
[HDFS-7452] Can we skip getCorruptFiles() call for standby NameNode..? - HDFS - [issue]
...Seen following warns logs from StandBy Namenode logs ..2014-11-27 17:50:32,497 | WARN  | 512264920@qtp-429668078-606 | Get corrupt file blocks returned error: Operation category READ is...
http://issues.apache.org/jira/browse/HDFS-7452    Author: Brahma Reddy Battula, 2014-12-08, 16:31
[HDFS-7487] NPE in MetricsSourceAdapter - HDFS - [issue]
...Caused by: java.lang.NullPointerException at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateAttrCache(MetricsSourceAdapter.java:247) at org.apache.hadoop.metrics2.impl.MetricsSou...
http://issues.apache.org/jira/browse/HDFS-7487    Author: Brahma Reddy Battula, 2014-12-08, 11:36
[HDFS-6311] TestLargeBlock#testLargeBlockSize : File /tmp/TestLargeBlock/2147484160.dat could only be replicated to 0 nodes instead of minReplication (=1) - HDFS - [issue]
...I'm testing HDFS 2.4.0 Apache Hadoop HDFS                    : Tests run: 2650, Failures: 2, Errors: 2, Skipped: 99I have the following erro...
http://issues.apache.org/jira/browse/HDFS-6311    Author: Tony Reix, 2014-12-08, 10:32
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NEW: Monitor These Apps!
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