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[HDFS-4120] Add a new "-skipSharedEditsCheck" option for BootstrapStandby - HDFS - [issue]
...Per https://issues.apache.org/jira/browse/HDFS-3752?focusedCommentId=13449466&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13449466 , let's introduce a n...
http://issues.apache.org/jira/browse/HDFS-4120    Author: Liang Xie, 2014-07-18, 15:00
[HDFS-6656] flakey TestProcessCorruptBlocks#testByAddingAnExtraDataNode - HDFS - [issue]
...failed in https://builds.apache.org/job/PreCommit-HDFS-Build/7320//testReport/org.apache.hadoop.hdfs.server.namenode/TestProcessCorruptBlocks/testByAddingAnExtraDataNode/...
http://issues.apache.org/jira/browse/HDFS-6656    Author: Liang Xie, 2014-07-11, 04:59
[HDFS-6614] shorten TestPread run time with a smaller retry timeout setting - HDFS - [issue]
...Just notice logs like this from TestPread:DFS chooseDataNode: got # 3 IOException, will wait for 9909.622860072854 msecso i tried to set a smaller retry window value.Before patch: T E S...
http://issues.apache.org/jira/browse/HDFS-6614    Author: Liang Xie, 2014-07-10, 15:55
[HDFS-6574] make sure addToDeadNodes() only be called when there's a connection issue occur - HDFS - [issue]
...My colleague cuijianwei found in a HBase testing scenario, once a bad disk occured, the local read will be skipped and lots of remote reads be requested for a lengthy time, say, tens of minu...
http://issues.apache.org/jira/browse/HDFS-6574    Author: Liang Xie, 2014-06-20, 09:46
[HDFS-6524] chooseDataNode decides retry times considering with block replica number - HDFS - [issue]
...Currently the chooseDataNode() does retry with the setting: dfsClientConf.maxBlockAcquireFailures, which by default is 3 (DFS_CLIENT_MAX_BLOCK_ACQUIRE_FAILURES_DEFAULT = 3), it would be bett...
http://issues.apache.org/jira/browse/HDFS-6524    Author: Liang Xie, 2014-06-13, 13:54
[HDFS-6109] let sync_file_range() system call run in background - HDFS - [issue]
...Through we passed SYNC_FILE_RANGE_WRITE to sync_file_range, to make it as asynchronous as possible, it still could be blocked, e.g. the os io request queue is full.Since we use sync_file_ran...
http://issues.apache.org/jira/browse/HDFS-6109    Author: Liang Xie, 2014-06-03, 16:54
[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, 2014-05-31, 16:16
[HDFS-6453] use Time#monotonicNow to avoid system clock reset - HDFS - [issue]
...similiar with hadoop-common, let's re-check and replace System#currentTimeMillis with Time#monotonicNow in HDFS project as well....
http://issues.apache.org/jira/browse/HDFS-6453    Author: Liang Xie, 2014-05-30, 16:18
[HDFS-6448] BlockReaderLocalLegacy should set socket timeout based on conf.socketTimeout - HDFS - [issue]
...Our hbase deployed upon hadoop2.0, in one accident, we hit HDFS-5016 in HDFS side, but we also found from HBase side, the dfs client was hung at getBlockReader, after reading code, we found ...
http://issues.apache.org/jira/browse/HDFS-6448    Author: Liang Xie, 2014-05-30, 16:18
[HDFS-6286] adding a timeout setting for local read io - HDFS - [issue]
...Currently, if a write or remote read requested into a sick disk, DFSClient.hdfsTimeout could help the caller have a guaranteed time cost to return back. but it doesn't work on local read. Ta...
http://issues.apache.org/jira/browse/HDFS-6286    Author: Liang Xie, 2014-05-28, 18:17
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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