[ovirt-users] SUCCESS / error

[Nir Soffer]

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