[jira] [Commented] (HDFS-4710) Turning off HDFS short-circuit checksums unexpectedly slows down Hive

2013-04-24 Thread Todd Lipcon (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13640799#comment-13640799 ] Todd Lipcon commented on HDFS-4710: --- If we wrap the underlying fd in a

[jira] [Commented] (HDFS-4710) Turning off HDFS short-circuit checksums unexpectedly slows down Hive

2013-04-24 Thread Gopal V (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13640942#comment-13640942 ] Gopal V commented on HDFS-4710: --- I did consider that as a fix, but a regular

[jira] [Commented] (HDFS-4710) Turning off HDFS short-circuit checksums unexpectedly slows down Hive

2013-04-24 Thread Todd Lipcon (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13640944#comment-13640944 ] Todd Lipcon commented on HDFS-4710: --- Check out o.a.h.fs.BufferedFSInputStream which

[jira] [Commented] (HDFS-4710) Turning off HDFS short-circuit checksums unexpectedly slows down Hive

2013-04-24 Thread Colin Patrick McCabe (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13640970#comment-13640970 ] Colin Patrick McCabe commented on HDFS-4710: I do agree that

[jira] [Commented] (HDFS-4710) Turning off HDFS short-circuit checksums unexpectedly slows down Hive

2013-04-18 Thread Colin Patrick McCabe (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13635476#comment-13635476 ] Colin Patrick McCabe commented on HDFS-4710: Hi Gopal, Good find. I suppose

[jira] [Commented] (HDFS-4710) Turning off HDFS short-circuit checksums unexpectedly slows down Hive

2013-04-18 Thread Gopal V (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13635501#comment-13635501 ] Gopal V commented on HDFS-4710: --- It is not really a one-size-fits-all fix, I guess. For

[jira] [Commented] (HDFS-4710) Turning off HDFS short-circuit checksums unexpectedly slows down Hive

2013-04-18 Thread Colin Patrick McCabe (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13635514#comment-13635514 ] Colin Patrick McCabe commented on HDFS-4710: If we honor