Re: Heartbeat interval and timeout: why 3 secs and 10 min?

2013-03-12 Thread Suresh Srinivas
You are right, in heartbeat response namenode sends commands to the datanode. Commands sent this way include deletion of blocks, replication, block recovery secret key updates etc. Increasing the heartbeat interval results in namenode not being able to quickly act on the events in the cluster and s

[jira] [Resolved] (HDFS-4144) Create test for all snapshot-related metrics

2013-03-12 Thread Suresh Srinivas (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Suresh Srinivas resolved HDFS-4144. --- Resolution: Fixed Fix Version/s: Snapshot (HDFS-2802) I committed the patch. Thank you

[jira] [Created] (HDFS-4598) WebHDFS concat: the default value of sources in the code does not match the doc

2013-03-12 Thread Tsz Wo (Nicholas), SZE (JIRA)
Tsz Wo (Nicholas), SZE created HDFS-4598: Summary: WebHDFS concat: the default value of sources in the code does not match the doc Key: HDFS-4598 URL: https://issues.apache.org/jira/browse/HDFS-4598

[jira] [Created] (HDFS-4597) Backport WebHDFS concat to branch-1

2013-03-12 Thread Tsz Wo (Nicholas), SZE (JIRA)
Tsz Wo (Nicholas), SZE created HDFS-4597: Summary: Backport WebHDFS concat to branch-1 Key: HDFS-4597 URL: https://issues.apache.org/jira/browse/HDFS-4597 Project: Hadoop HDFS Issue T

[jira] [Created] (HDFS-4596) Shutting down namenode during checkpointing can lead to md5sum error

2013-03-12 Thread Andrew Wang (JIRA)
Andrew Wang created HDFS-4596: - Summary: Shutting down namenode during checkpointing can lead to md5sum error Key: HDFS-4596 URL: https://issues.apache.org/jira/browse/HDFS-4596 Project: Hadoop HDFS

Re: Heartbeat interval and timeout: why 3 secs and 10 min?

2013-03-12 Thread André Oriani
No take on this one? In Zookeeper the heartbeats happen on every third of the timeout. If I am not mistaken, recomended timeout is more than 2 minutes to avoid false positives. But I still cannot see the relationship on HDFS between heartbeat interval and timeout. Okay 10 minutes seems to be a

[jira] [Created] (HDFS-4595) When short circuit read is disallowed, DFSClient does disable short circuit and fall back to regular reads

2013-03-12 Thread Suresh Srinivas (JIRA)
Suresh Srinivas created HDFS-4595: - Summary: When short circuit read is disallowed, DFSClient does disable short circuit and fall back to regular reads Key: HDFS-4595 URL: https://issues.apache.org/jira/browse/HDF

[jira] [Created] (HDFS-4594) WebHDFS open sets Content-Length header to what is specified by length parameter rather than how much data is actually returned.

2013-03-12 Thread Arpit Gupta (JIRA)
Arpit Gupta created HDFS-4594: - Summary: WebHDFS open sets Content-Length header to what is specified by length parameter rather than how much data is actually returned. Key: HDFS-4594 URL: https://issues.apache.org/

[jira] [Created] (HDFS-4593) TestSaveNamespace fails on Windows

2013-03-12 Thread Arpit Agarwal (JIRA)
Arpit Agarwal created HDFS-4593: --- Summary: TestSaveNamespace fails on Windows Key: HDFS-4593 URL: https://issues.apache.org/jira/browse/HDFS-4593 Project: Hadoop HDFS Issue Type: Bug Affect

Hadoop-Hdfs-trunk - Build # 1342 - Still Failing

2013-03-12 Thread Apache Jenkins Server
See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1342/ ### ## LAST 60 LINES OF THE CONSOLE ### [...truncated 10101 lines...] Tests run: 42, Failures: 0, Errors: 0, Sk

Build failed in Jenkins: Hadoop-Hdfs-trunk #1342

2013-03-12 Thread Apache Jenkins Server
See Changes: [atm] HADOOP-9394. Port findHangingTest.sh from HBase to Hadoop. Contributed by Andrew Wang. [atm] HADOOP-9393. TestRPC fails with JDK7. Contributed by Andrew Wang. [suresh] HDFS-4572. Fix TestJournal failures on Windo