[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-02-08 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203863#comment-13203863 ] Pavel Yaskevich commented on CASSANDRA-3623: +1 on closing it with wontfix

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-02-08 Thread Jonathan Ellis (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203861#comment-13203861 ] Jonathan Ellis commented on CASSANDRA-3623: --- Since we can't demonstrate a co

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-27 Thread Yuki Morishita (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13195229#comment-13195229 ] Yuki Morishita commented on CASSANDRA-3623: --- Vijay, Pavel, I did the test s

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-26 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193961#comment-13193961 ] Vijay commented on CASSANDRA-3623: -- Complete isolation => delete files and load again

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-26 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193938#comment-13193938 ] Pavel Yaskevich commented on CASSANDRA-3623: bq. The attached test results

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-26 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193930#comment-13193930 ] Vijay commented on CASSANDRA-3623: -- >>> Vijay, maybe you weren't dropping page cache

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-26 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193896#comment-13193896 ] Pavel Yaskevich commented on CASSANDRA-3623: I'm still don't think that th

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-25 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193402#comment-13193402 ] Vijay commented on CASSANDRA-3623: -- Hi Jonathan, The env which i was testing was on X

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-25 Thread Jonathan Ellis (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193340#comment-13193340 ] Jonathan Ellis commented on CASSANDRA-3623: --- What's the verdict here? Do we

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-04 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13179585#comment-13179585 ] Pavel Yaskevich commented on CASSANDRA-3623: This is not so surprising for

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-04 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13179558#comment-13179558 ] Vijay commented on CASSANDRA-3623: -- I can't believe you get worser performance even w

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2012-01-04 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13179469#comment-13179469 ] Pavel Yaskevich commented on CASSANDRA-3623: MMappedIO-Performance.docx te

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-27 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176226#comment-13176226 ] Pavel Yaskevich commented on CASSANDRA-3623: I ask because you mentioned p

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-27 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176221#comment-13176221 ] Vijay commented on CASSANDRA-3623: -- " Also I took a look at the doc you have attached

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-27 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176126#comment-13176126 ] Pavel Yaskevich commented on CASSANDRA-3623: CASSANDRA-3610 needs rebase t

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-25 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175841#comment-13175841 ] Pavel Yaskevich commented on CASSANDRA-3623: bq. Mean while your claim her

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-24 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175789#comment-13175789 ] Vijay commented on CASSANDRA-3623: -- Network is because the test has 12 nodes and it i

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-24 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175765#comment-13175765 ] Pavel Yaskevich commented on CASSANDRA-3623: Isn't node with the higher Ne

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-24 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175763#comment-13175763 ] Vijay commented on CASSANDRA-3623: -- Note: read Latency is from the NodeTool cfstats.

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-24 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175762#comment-13175762 ] Vijay commented on CASSANDRA-3623: -- it does, `/sbin/ifconfig eth0 | grep "RX bytes" |

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-24 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175759#comment-13175759 ] Pavel Yaskevich commented on CASSANDRA-3623: I understand that those are f

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-24 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175758#comment-13175758 ] Vijay commented on CASSANDRA-3623: -- NetRxKb and NetTxKb shows the network stats... th

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-24 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175726#comment-13175726 ] Pavel Yaskevich commented on CASSANDRA-3623: Pavel, it doesnt show the opp

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175639#comment-13175639 ] Vijay commented on CASSANDRA-3623: -- constant performance => not a lot of difference f

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175638#comment-13175638 ] Vijay commented on CASSANDRA-3623: -- Pavel, it doesnt show the opposite it actually sh

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175631#comment-13175631 ] Pavel Yaskevich commented on CASSANDRA-3623: bq. We do get something like

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175630#comment-13175630 ] Vijay commented on CASSANDRA-3623: -- Regarding duplicates i was thinking of Creating d

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175628#comment-13175628 ] Pavel Yaskevich commented on CASSANDRA-3623: Hot reads show the if we remo

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175626#comment-13175626 ] Pavel Yaskevich commented on CASSANDRA-3623: The problem is that you can't

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175607#comment-13175607 ] Vijay commented on CASSANDRA-3623: -- BTW: i can remove the duplicate() i didnt realize

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175606#comment-13175606 ] Vijay commented on CASSANDRA-3623: -- I did it Again, i confused everyone with my test

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175601#comment-13175601 ] Pavel Yaskevich commented on CASSANDRA-3623: Can you please compare your v

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175598#comment-13175598 ] Vijay commented on CASSANDRA-3623: -- The above test was done on 12 node cluster but th

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-23 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175595#comment-13175595 ] Vijay commented on CASSANDRA-3623: -- Hot Methods before the patch (trunk): Excl. User

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174992#comment-13174992 ] Vijay commented on CASSANDRA-3623: -- Pravel, I already have the hot methods (this patc

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174963#comment-13174963 ] Pavel Yaskevich commented on CASSANDRA-3623: I'd like to see test and numb

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Sylvain Lebresne (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174958#comment-13174958 ] Sylvain Lebresne commented on CASSANDRA-3623: - When I was originally check

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174944#comment-13174944 ] Pavel Yaskevich commented on CASSANDRA-3623: Cost of the syscall is neglig

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174924#comment-13174924 ] Vijay commented on CASSANDRA-3623: -- How about the system calls and its over head? ht

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174912#comment-13174912 ] Pavel Yaskevich commented on CASSANDRA-3623: bq. and if it is mmaped it wi

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174902#comment-13174902 ] Vijay commented on CASSANDRA-3623: -- Hi Pavel, Write()? i dont understand that part. (

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-22 Thread Pavel Yaskevich (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174886#comment-13174886 ] Pavel Yaskevich commented on CASSANDRA-3623: With read()/write() operation

[jira] [Commented] (CASSANDRA-3623) use MMapedBuffer in CompressedSegmentedFile.getSegment

2011-12-20 Thread Vijay (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/CASSANDRA-3623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173365#comment-13173365 ] Vijay commented on CASSANDRA-3623: -- This gets complicated because the rows boundary i