[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2013-09-03 Thread Manu Zhang (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13756449#comment-13756449 ] Manu Zhang commented on HADOOP-7832: Hi, could the patch be applied to 1.0.3 since I

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2013-09-03 Thread Cristina L. Abad (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13756706#comment-13756706 ] Cristina L. Abad commented on HADOOP-7832: -- It should work, but only if you

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2013-09-03 Thread Manu Zhang (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13757350#comment-13757350 ] Manu Zhang commented on HADOOP-7832: Thanks Cristina. I've applied all the patches in

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2011-11-23 Thread Nathan Roberts (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13155935#comment-13155935 ] Nathan Roberts commented on HADOOP-7832: bq. On clusters with lots of blocks, we

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2011-11-23 Thread Todd Lipcon (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13156021#comment-13156021 ] Todd Lipcon commented on HADOOP-7832: - Hi Nathan. Yep, that's the workaround we

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2011-11-17 Thread Cristina L. Abad (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13152311#comment-13152311 ] Cristina L. Abad commented on HADOOP-7832: -- Sample output (datanode log):

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2011-11-17 Thread Todd Lipcon (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13152335#comment-13152335 ] Todd Lipcon commented on HADOOP-7832: - Hi Cristina. This is interesting stuff. Is the

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2011-11-17 Thread Cristina L. Abad (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13152342#comment-13152342 ] Cristina L. Abad commented on HADOOP-7832: -- At this point I just wanted to share

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2011-11-17 Thread Todd Lipcon (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13152350#comment-13152350 ] Todd Lipcon commented on HADOOP-7832: - nice analysis - makes sense. Another big

[jira] [Commented] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache

2011-11-17 Thread Todd Lipcon (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13152351#comment-13152351 ] Todd Lipcon commented on HADOOP-7832: - btw, another thing I think would be very