[rdo-dev] [infra][tripleo-ci] Disk space usage in logs.rdoproject.org

[Javier Pena]

----- Original Message -----

> On Thu, Jun 13, 2019 at 8:22 AM Javier Pena < jpena at redhat.com > wrote:

> > Hi all,
> 

> > For the last few days, I have been monitoring a spike in disk space
> > utilization for logs.rdoproject.org . The current situation is:
> 

> > - 94% of space used, with less than 140GB out of 2TB available.
> 
> > - The log pruning script has been reclaiming less space than we are using
> > for
> > new logs during this week.
> 
> > - I expect the situation to improve over the weekend, but we're definitely
> > running out of space.
> 

> > I have looked at a random job ( https://review.opendev.org/639324 , patch
> > set
> > 26), and found that each run is consuming 1.2 GB of disk space in logs. The
> > worst offenders I have found are:
> 

> > - atop.bin.gz files (one per job, 8 jobs per recheck), ranging between 15
> > and
> > 40 MB each
> 
> > - logs/undercloud/home/zuul/tempest/.stackviz directory on
> > tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001 jobs, which is a
> > virtualenv eating up 81 MB.
> 

> Can we sync up w/ how you are calculating these results as they do not match
> our results.
> I see each job consuming about 215M of space, we are close on stackviz being
> 83M. Oddly I don't see atop.bin.gz in our calculations so I'll have to look
> into that.

I've checked it directly using du on the logserver. By 1.2 GB I meant the aggregate of the 8 jobs running for a single patchset. PS26 is currently using 2.5 GB and had one recheck. 

About the atop.bin.gz file: 

# find . -name atop.bin.gz -exec du -sh {} \; 
16M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-queens-branch/042cb8f/logs/undercloud/var/log/atop.bin.gz 
16M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-queens-branch/e4171d7/logs/undercloud/var/log/atop.bin.gz 
28M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-rocky-branch/ffd4de9/logs/undercloud/var/log/atop.bin.gz 
26M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-rocky-branch/34d44bf/logs/undercloud/var/log/atop.bin.gz 
25M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-stein-branch/b89761d/logs/undercloud/var/log/atop.bin.gz 
24M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-stein-branch/9ade834/logs/undercloud/var/log/atop.bin.gz 
29M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset053/a10447d/logs/undercloud/var/log/atop.bin.gz 
44M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset053/99a5f9f/logs/undercloud/var/log/atop.bin.gz 
15M ./tripleo-ci-centos-7-multinode-1ctlr-featureset010/c8a8c60/logs/subnode-2/var/log/atop.bin.gz 
33M ./tripleo-ci-centos-7-multinode-1ctlr-featureset010/c8a8c60/logs/undercloud/var/log/atop.bin.gz 
16M ./tripleo-ci-centos-7-multinode-1ctlr-featureset010/73ef532/logs/subnode-2/var/log/atop.bin.gz 
33M ./tripleo-ci-centos-7-multinode-1ctlr-featureset010/73ef532/logs/undercloud/var/log/atop.bin.gz 
40M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset035/109d5ae/logs/undercloud/var/log/atop.bin.gz 
45M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset035/c2ebeae/logs/undercloud/var/log/atop.bin.gz 
39M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001/7fe5bbb/logs/undercloud/var/log/atop.bin.gz 
16M ./tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001/5e6cb0f/logs/undercloud/var/log/atop.bin.gz 
40M ./tripleo-ci-centos-7-ovb-3ctlr_1comp_1supp-featureset039/c6bf5ea/logs/undercloud/var/log/atop.bin.gz 
40M ./tripleo-ci-centos-7-ovb-3ctlr_1comp_1supp-featureset039/6ec5ac6/logs/undercloud/var/log/atop.bin.gz 

Can I safely delete all .stackviz directories? I guess that would give us some breathing room. 

Regards, 
Javier 

> Each job reports the size of the logs e.g. [1]
> http://logs.rdoproject.org/24/639324/26/openstack-check/tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-stein-branch/9ade834/logs/quickstart_files/log-size.txt

> > As a temporary measure, I am reducing log retention from 21 days to 14, but
> > we still need to reduce the rate at which we are uploading logs. Would it
> > be
> > possible to check the oooq-generated logs and see where we can reduce?
> > These
> > jobs are by far the ones consuming most space.
> 

> > Thanks,
> 
> > Javier
> 
> > _______________________________________________
> 
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> 
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> 
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> 

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