[Bug 305853] Re: open-iscsi slow disk performance
Thank you for taking the time to report this bug. In an effort to keep an up-to-date and valid list of bugs to work on, I have reviewed this report to verify it still requires effort and occurs on an Ubuntu release in standard support, and it does not. It is unfortunate that we were unable to resolve this defect, however there appears to be no further action possible at this time. I am therefore moving the bug to 'Incomplete'. If you disagree or have new information, we would be grateful if you could please add a comment stating why and then change the status of the bug to 'New'. ** Changed in: open-iscsi (Ubuntu) Status: New => Incomplete ** Changed in: open-iscsi (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/305853 Title: open-iscsi slow disk performance To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/open-iscsi/+bug/305853/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 305853] Re: open-iscsi slow disk performance
I have been doing some experimenting and I found something I do not understand and it may have something to do with this problem. I recently took node that when the iscsi disks are running slow I am missing a process, specifically: /usr/sbin/iscsid. It starts out that iscsi is running slow, I take a look and see what iscsi is doing... r...@mara:~# ps -ef | grep scsi root 1493 2 0 2008 ?00:00:00 [scsi_eh_0] root 2433 2 0 2008 ?00:00:00 [scsi_eh_1] root 2434 2 0 2008 ?00:00:00 [scsi_eh_2] root 5138 2 0 2008 ?00:00:00 [scsi_eh_3] root 5139 2 0 2008 ?00:23:42 [scsi_wq_3] root 26621 26468 0 12:13 pts/000:00:00 grep scsi root 27919 1 0 Jan05 ?00:00:00 /sbin/iscsid I do my usually parlor trick to get it running at proper speed again: r...@mara:~# dpkg -i /home/apthul/open-iscsi_2.0.730-1_amd64.deb ; aptitude install open-iscsi dpkg - warning: downgrading open-iscsi from 2.0.865-1ubuntu3 to 2.0.730-1. (Reading database ... 27321 files and directories currently installed.) Preparing to replace open-iscsi 2.0.865-1ubuntu3 (using .../open-iscsi_2.0.730-1_amd64.deb) ... * Disconnecting iSCSI targets ...done. * Stopping iSCSI initiator service ...done. Unpacking replacement open-iscsi ... Setting up open-iscsi (2.0.730-1) ... Installing new version of config file /etc/init.d/open-iscsi ... * Starting iSCSI initiator service iscsid ...done. * Setting up iSCSI targets ...done. Preparing to replace open-iscsi 2.0.730-1 (using .../open-iscsi_2.0.865-1ubuntu3_amd64.deb) ... * Disconnecting iSCSI targets ...done. * Stopping iSCSI initiator service ...done. Unpacking replacement open-iscsi ... Setting up open-iscsi (2.0.865-1ubuntu3) ... Installing new version of config file /etc/init.d/open-iscsi ... update-rc.d: /etc/init.d/remove: file does not exist * Starting iSCSI initiator service iscsid ...done. * Setting up iSCSI targets Everything test out well and I decide I wanted to see what was running now: apt...@mara:~$ ps -ef | grep scsi root 1493 2 0 2008 ?00:00:00 [scsi_eh_0] root 2433 2 0 2008 ?00:00:00 [scsi_eh_1] root 2434 2 0 2008 ?00:00:00 [scsi_eh_2] root 5138 2 0 2008 ?00:00:00 [scsi_eh_3] root 5139 2 0 2008 ?00:23:42 [scsi_wq_3] root 26742 1 0 12:13 ?00:00:00 /usr/sbin/iscsid ##What the heck is that!??? root 26960 1 0 12:13 ?00:00:00 /sbin/iscsid root 26961 1 0 12:13 ?00:00:00 /sbin/iscsid apthul 27018 22441 0 12:16 pts/000:00:00 grep scsi apt...@mara:~$ iostat -cdmtx 10 99 I decided to go see what it was: apt...@mara:~$ ls -latr /usr/sbin/iscsid ls: cannot access /usr/sbin/iscsid: No such file or directory It is not there but /usr/sbin/iscsid is still running, it must have been deleted from the open-scsi upgrade. Could this be the magic that is keeping my open-iscsi running at proper speeds? Could it be that /usr/sbin/iscsid running is causing libraries to not be reloaded that are keeping the open-iscsi running properly? -- open-iscsi slow disk performance https://bugs.launchpad.net/bugs/305853 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to open-iscsi in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 305853] Re: open-iscsi slow disk performance
I have been doing some experimenting and I found something I do not understand and it may have something to do with this problem. I recently took node that when the iscsi disks are running slow I am missing a process, specifically: /usr/sbin/iscsid. It starts out that iscsi is running slow, I take a look and see what iscsi is doing... r...@mara:~# ps -ef | grep scsi root 1493 2 0 2008 ?00:00:00 [scsi_eh_0] root 2433 2 0 2008 ?00:00:00 [scsi_eh_1] root 2434 2 0 2008 ?00:00:00 [scsi_eh_2] root 5138 2 0 2008 ?00:00:00 [scsi_eh_3] root 5139 2 0 2008 ?00:23:42 [scsi_wq_3] root 26621 26468 0 12:13 pts/000:00:00 grep scsi root 27919 1 0 Jan05 ?00:00:00 /sbin/iscsid I do my usually parlor trick to get it running at proper speed again: r...@mara:~# dpkg -i /home/apthul/open-iscsi_2.0.730-1_amd64.deb ; aptitude install open-iscsi dpkg - warning: downgrading open-iscsi from 2.0.865-1ubuntu3 to 2.0.730-1. (Reading database ... 27321 files and directories currently installed.) Preparing to replace open-iscsi 2.0.865-1ubuntu3 (using .../open-iscsi_2.0.730-1_amd64.deb) ... * Disconnecting iSCSI targets ...done. * Stopping iSCSI initiator service ...done. Unpacking replacement open-iscsi ... Setting up open-iscsi (2.0.730-1) ... Installing new version of config file /etc/init.d/open-iscsi ... * Starting iSCSI initiator service iscsid ...done. * Setting up iSCSI targets ...done. Preparing to replace open-iscsi 2.0.730-1 (using .../open-iscsi_2.0.865-1ubuntu3_amd64.deb) ... * Disconnecting iSCSI targets ...done. * Stopping iSCSI initiator service ...done. Unpacking replacement open-iscsi ... Setting up open-iscsi (2.0.865-1ubuntu3) ... Installing new version of config file /etc/init.d/open-iscsi ... update-rc.d: /etc/init.d/remove: file does not exist * Starting iSCSI initiator service iscsid ...done. * Setting up iSCSI targets Everything test out well and I decide I wanted to see what was running now: apt...@mara:~$ ps -ef | grep scsi root 1493 2 0 2008 ?00:00:00 [scsi_eh_0] root 2433 2 0 2008 ?00:00:00 [scsi_eh_1] root 2434 2 0 2008 ?00:00:00 [scsi_eh_2] root 5138 2 0 2008 ?00:00:00 [scsi_eh_3] root 5139 2 0 2008 ?00:23:42 [scsi_wq_3] root 26742 1 0 12:13 ?00:00:00 /usr/sbin/iscsid ##What the heck is that!??? root 26960 1 0 12:13 ?00:00:00 /sbin/iscsid root 26961 1 0 12:13 ?00:00:00 /sbin/iscsid apthul 27018 22441 0 12:16 pts/000:00:00 grep scsi apt...@mara:~$ iostat -cdmtx 10 99 I decided to go see what it was: apt...@mara:~$ ls -latr /usr/sbin/iscsid ls: cannot access /usr/sbin/iscsid: No such file or directory It is not there but /usr/sbin/iscsid is still running, it must have been deleted from the open-scsi upgrade. Could this be the magic that is keeping my open-iscsi running at proper speeds? Could it be that /usr/sbin/iscsid running is causing libraries to not be reloaded that are keeping the open-iscsi running properly? -- open-iscsi slow disk performance https://bugs.launchpad.net/bugs/305853 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
