On Wed, Mar 2, 2016 at 6:41 PM, paf1@email.cz <paf1@email.cz> wrote:

Hi, next explanation
VDSM log give me following message
Is this live checking for storage availability ? If "SUCCESS" then why "<err> " ???

- SUCCESS means the command was successful

- <err> is what the command wrote to stderr, which is sometimes useful

This is indeed confusing and wrong - there is not need to log stderr of all commands

by default. In the case of this dd command, the read latency is reported later in repoStats

logs.

We will clean this in the future.

Nir

regs.
Pavel

Thread-233::DEBUG::2016-03-02 17:31:55,275::fileSD::262::Storage.Misc.excCmd::(getReadDelay) SUCCESS: <err> = '0+1 records in\n0+1 records out\n346 bytes (346 B) copied, 0.00022692 s, 1.5 MB/s\n'; <rc> = 0
Thread-299::DEBUG::2016-03-02 17:31:57,870::fileSD::262::Storage.Misc.excCmd::(getReadDelay) /usr/bin/dd if=/rhev/data-center/mnt/glusterSD/localhost:_2KVM12__P4/300e9ac8-3c2f-4703-9bb1-1df2130c7c97/dom_md/metadata iflag=direct of=/dev/null bs=4096 count=1 (cwd None)
Thread-299::DEBUG::2016-03-02 17:31:57,886::fileSD::262::Storage.Misc.excCmd::(getReadDelay) SUCCESS: <err> = '0+1 records in\n0+1 records out\n734 bytes (734 B) copied, 0.000391403 s, 1.9 MB/s\n'; <rc> = 0
Thread-209::DEBUG::2016-03-02 17:31:58,301::fileSD::262::Storage.Misc.excCmd::(getReadDelay) /usr/bin/dd if=/rhev/data-center/mnt/glusterSD/localhost:_1KVM12-BCK/0fcad888-d573-47be-bef3-0bc0b7a99fb7/dom_md/metadata iflag=direct of=/dev/null bs=4096 count=1 (cwd None)
Thread-209::DEBUG::2016-03-02 17:31:58,318::fileSD::262::Storage.Misc.excCmd::(getReadDelay) SUCCESS: <err> = '0+1 records in\n0+1 records out\n335 bytes (335 B) copied, 0.00048095 s, 697 kB/s\n'; <rc> = 0
Thread-198::DEBUG::2016-03-02 17:31:58,885::fileSD::262::Storage.Misc.excCmd::(getReadDelay) /usr/bin/dd if=/rhev/data-center/mnt/installshare:_DATA3/7f334c9d-ac01-4b2a-9f29-af1d2f24c3e0/dom_md/metadata iflag=direct of=/dev/null bs=4096 count=1 (cwd None)

dist = RHEL - 7 - 2.1511
kernel = 3.10.0 - 327.10.1.el7.x86_64
KVM = 2.3.0 - 29.1.el7
libvirt = libvirt-1.2.17-13.el7_2.3
vdsm = vdsm-4.16.30-0.el7
GlusterFS = glusterfs-3.7.8-1.el7

_______________________________________________
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users