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[HDFS-4882] Namenode LeaseManager checkLeases() runs into infinite loop - HDFS - [issue]
...Scenario:1. cluster with 4 DNs2. the size of the file to be written is a little more than one block3. write the first block to 3 DNs, DN1->DN2->DN34. all the data packets of first bloc...
http://issues.apache.org/jira/browse/HDFS-4882    Author: Zesheng Wu, 2014-11-24, 05:26
[HDFS-6442] Fix TestEditLogAutoroll and TestStandbyCheckpoints failure caused by port conficts - HDFS - [issue]
...TestEditLogAutoroll and TestStandbyCheckpoints both use 10061 and 10062 to set up the mini-cluster, this may result in occasionally test failure when run test with -Pparallel-tests....
http://issues.apache.org/jira/browse/HDFS-6442    Author: Zesheng Wu, 2014-09-03, 21:34
[HDFS-6443] Fix MiniQJMHACluster related test failures - HDFS - [issue]
...MiniQJMHACluster uses fixed ports(10000/10001/10002/10003) to set up a cluster for testing, this will result in port conflicts when multiple tests which rely on MiniQJMHACluster running conc...
http://issues.apache.org/jira/browse/HDFS-6443    Author: Zesheng Wu, 2014-09-03, 21:34
[HDFS-6827] Both NameNodes stuck in STANDBY state due to HealthMonitor not aware of the target's status changing sometimes - HDFS - [issue]
...In our production cluster, we encounter a scenario like this: ANN crashed due to write journal timeout, and was restarted by the watchdog automatically, but after restarting both of the NNs ...
http://issues.apache.org/jira/browse/HDFS-6827    Author: Zesheng Wu, 2014-08-26, 13:23
[HDFS-6507] Improve DFSAdmin to support HA cluster better - HDFS - [issue]
...Currently, the commands supported in DFSAdmin can be classified into three categories according to the protocol used:1. ClientProtocolCommands in this category generally implement by calling...
http://issues.apache.org/jira/browse/HDFS-6507    Author: Zesheng Wu, 2014-08-01, 03:29
[HDFS-4916] DataTransfer may mask the IOException during block transfering - HDFS - [issue]
...When a new datanode is added to the pipeline, the client will trigger the block transfer process. In the current implementation, the src datanode calls the run() method of the DataTransfer t...
http://issues.apache.org/jira/browse/HDFS-4916    Author: Zesheng Wu, 2014-08-01, 02:12
[HDFS-6526] Implement HDFS TtlManager - HDFS - [issue]
...This issue is used to track development of HDFS TtlManager, for details see HDFS-6382....
http://issues.apache.org/jira/browse/HDFS-6526    Author: Zesheng Wu, 2014-07-26, 04:16
[HDFS-6382] HDFS File/Directory TTL - HDFS - [issue]
...In production environment, we always have scenario like this, we want to backup files on hdfs for some time and then hope to delete these files automatically. For example, we keep only 1 day...
http://issues.apache.org/jira/browse/HDFS-6382    Author: Zesheng Wu, 2014-07-22, 22:53
[HDFS-6525] FsShell supports HDFS TTL - HDFS - [issue]
...This issue is used to track development of supporting  HDFS TTL for FsShell, for details see HDFS-6382....
http://issues.apache.org/jira/browse/HDFS-6525    Author: Zesheng Wu, 2014-07-03, 06:28
[HDFS-6596] Improve InputStream when read spans two blocks - HDFS - [issue]
...In the current implementation of DFSInputStream, read(buffer, offset, length) is implemented as following:int realLen = (int) Math.min(len, (blockEnd - pos + 1L));if (locatedBlocks.isLastBlo...
http://issues.apache.org/jira/browse/HDFS-6596    Author: Zesheng Wu, 2014-06-30, 16:51
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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