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[HDFS-6110] adding more slow action log in critical write path - HDFS - [issue]
...After digging a HBase write spike issue caused by slow buffer io in our cluster, just realize we'd better to add more abnormal latency warning log in write flow, such that if other guys hit ...
http://issues.apache.org/jira/browse/HDFS-6110    Author: Liang Xie, 2015-05-20, 04:54
[HDFS-6285] tidy an error log inside BlockReceiver - HDFS - [issue]
...From this log from our production cluster:2014-04-22,10:39:05,476 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: IOException in BlockReceiver constructor. Cause is After reading code,...
http://issues.apache.org/jira/browse/HDFS-6285    Author: Liang Xie, 2015-05-09, 13:01
[HDFS-7523] Setting a socket receive buffer size in DFSClient - HDFS - [issue]
...It would be nice if we have a socket receive buffer size while creating socket from client(HBase) view, in old version it should be in DFSInputStream, in trunk it seems should be at: &n...
http://issues.apache.org/jira/browse/HDFS-7523    Author: Liang Xie, 2015-04-02, 01:06
[HDFS-4396] Add START_MSG/SHUTDOWN_MSG for ZKFC - HDFS - [issue]
...we have a ZKFC be killed issue yesterday, but there's no shutdown hook msg on current codebase, let's keep the same behivior like HDFS-4153...
http://issues.apache.org/jira/browse/HDFS-4396    Author: Liang Xie, 2015-03-30, 15:52
[HDFS-4153] Add START_MSG/SHUTDOWN_MSG for JournalNode - HDFS - [issue]
...Currently, there's no startup/shutdown msg log in jn, it somehow makes a little difficult to digniose issue, we'd better do the same behavior like dn/nn/...This tiny patch passed those test ...
http://issues.apache.org/jira/browse/HDFS-4153    Author: Liang Xie, 2015-03-30, 11:01
[HDFS-7763] fix zkfc hung issue due to not catching exception in a corner case - HDFS - [issue]
...In our product cluster, we hit both the two zkfc process is hung after a zk network outage.the zkfc log said:2015-02-07,17:40:11,875 INFO org.apache.zookeeper.ClientCnxn: Client session time...
http://issues.apache.org/jira/browse/HDFS-7763    Author: Liang Xie, 2015-02-25, 15:25
[HDFS-7802] Reach xceiver limit once the watcherThread die - HDFS - [issue]
...Our product cluster hit the Xceiver limit even w/ HADOOP-10404 & HADOOP-11333,  i found it was caused by DomainSocketWatcher.watcherThread gone. Attached is a possible fix, please r...
http://issues.apache.org/jira/browse/HDFS-7802    Author: Liang Xie, 2015-02-17, 22:21
[HDFS-7551] Fix the new findbugs warning from TransferFsImage - HDFS - [issue]
...There is a findbug warning in https://builds.apache.org/job/PreCommit-HDFS-Build/9080//artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html , Bug type RV_RETURN_VALUE_IGNORED_BAD_P...
http://issues.apache.org/jira/browse/HDFS-7551    Author: Liang Xie, 2015-01-28, 17:04
[HDFS-7553] fix the TestDFSUpgradeWithHA due to BindException - HDFS - [issue]
...see https://builds.apache.org/job/PreCommit-HDFS-Build/9092//testReport/org.apache.hadoop.hdfs.server.namenode.ha/TestDFSUpgradeWithHA/testNfsUpgrade/ :Error MessagePort in use: localhost:57...
http://issues.apache.org/jira/browse/HDFS-7553    Author: Liang Xie, 2015-01-07, 21:08
[HDFS-7552] change FsVolumeList toString() to fix TestDataNodeVolumeFailureToleration - HDFS - [issue]
...see https://builds.apache.org/job/PreCommit-HDFS-Build/9088//testReport/org.apache.hadoop.hdfs.server.datanode/TestDataNodeVolumeFailureToleration/testValidVolumesAtStartup/Per my understand...
http://issues.apache.org/jira/browse/HDFS-7552    Author: Liang Xie, 2014-12-20, 15:27
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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