[gpfsug-discuss] Performance collector no results for Capacity
Anna Greim
Anna.Greim at de.ibm.com
Thu Oct 11 14:11:56 BST 2018
Hello Richard,
the sensor is running once an hour and the default of mmperfmon returns
the last 10 results in a bucket-size of 1 seconds.
The sensor did not run in the time of 13:07:31-13:07:40.
Please use the command again with the option -b 3600 or with
--bucket-size=3600 and see if you've got any data for that time.
If you get any data the question is, why the GUI isn't able to get the
data. If you do not have any data (only null rows) the question is, why
the collector does not get data or why the sensor does not collect data
and sends them to the collector. Since you get data for the cpu_user
metric it is more likely that the sensor is
not collecting and sending anything. The guide from Markus should help you
here. Otherwise just write again into the user group.
Mit freundlichen Grüßen / Kind regards
Greim, Anna
Software Engineer, Spectrum Scale Development
IBM Systems
IBM Deutschland Research & Development GmbH / Vorsitzende des
Aufsichtsrats: Martina Koederitz
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart,
HRB 243294
From: "Sobey, Richard A" <r.sobey at imperial.ac.uk>
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: 11/10/2018 14:10
Subject: Re: [gpfsug-discuss] Performance collector no results for
Capacity
Sent by: gpfsug-discuss-bounces at spectrumscale.org
Anna,
Yes, that will be it! I was running the wrong command as you surmise.
The GPFSFileSetQuota config appears to be correct:
{
name = "GPFSFilesetQuota"
period = 3600
restrict = "icgpfsq1.cc.ic.ac.uk"
},
However ?mmperfmon query gpfs_rq_blk_current? just shows lots of null
values, for example:
Row Timestamp gpfs_rq_blk_current gpfs_rq_blk_current
gpfs_rq_blk_current gpfs_rq_blk_current gpfs_rq_blk_current
gpfs_rq_blk_current gpfs_rq_blk_current gpfs_rq_blk_current
1 2018-10-11-13:07:31 null null null
null null null null
null
2 2018-10-11-13:07:32 null null null
null null null null
null
3 2018-10-11-13:07:33 null null null
null null null null
null
4 2018-10-11-13:07:34 null null null
null null null null
null
5 2018-10-11-13:07:35 null null null
null null null null
null
6 2018-10-11-13:07:36 null null null
null null null null
null
7 2018-10-11-13:07:37 null null null
null null null null
null
8 2018-10-11-13:07:38 null null null
null null null null
null
9 2018-10-11-13:07:39 null null null
null null null null
null
10 2018-10-11-13:07:40 null null null
null null null null null
Same with the metric gpfs_rq_file_current.
I?ll have a look at the PDF sent by Markus in the meantime.
Thanks
Richard
From: gpfsug-discuss-bounces at spectrumscale.org
<gpfsug-discuss-bounces at spectrumscale.org> On Behalf Of Anna Greim
Sent: 11 October 2018 07:41
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] Performance collector no results for
Capacity
Hi Richard,
one thing to note.
You tried "mmperfmon query GPFSFilesetQuota" to get metric data. So you
used the sensor's name instead of a metric name.
And compared it to "mmperfmon query cpu_user" where you used the metric
name.
mmperfmon will not return data, if you use the sensor's name instead of a
metric's name. I bet you got something like this returned:
[root at test-51 ~]# mmperfmon query GPFSFilesetQuota
Error: no data available for query
.
mmperfmon: Command failed. Examine previous error messages to determine
cause.
The log entries you found just tell you, that the collector does not know
any metric named "GPFSFilesetQuota".
Please try the query again with gpfs_rq_blk_current or
gpfs_rq_file_current.
If the collector never got any data for that metrics, it also does not
know those metrics' names.
But since you do not see any data in the GUI this might be the case. In
this case please check with "mmperfmon config show"
if the restrict field is set correctly. You should use the long gpfs name
and not the hostname. You can check, if the configuration file was
distributed
correctly in checking the /opt/IBM/zimon/ZIMonSensors.cfg on the node that
is supposed to start this monitor. If the mmperfmon command was
able to identify the restrict value correctly, this node should have your
configured period value instead of 0 in ZIMonSensors.cfg under the
GPFSFilesetQuota sensor. All other nodes
should include a period equal to 0.
Furthermore, of course, the period for GPFSFilesetQuota should be higher
than 0. Recommended is a value of 3600 (once per hour) since the
underlying command
is heavier on the system than other sensors. Change the values with the
"mmperfmon config update" command, so that it is distributed in the
system.
E.g. "mmperfmon config update GPFSFilesetQuota.restrict=<long_gpfs_name>"
and "mmperfmon config update GPFSFilesetQuota.period=3600"
Mit freundlichen Grüßen / Kind regards
Greim, Anna
Software Engineer, Spectrum Scale Development
IBM Systems
Phone:
+49-7034-2740981
IBM Deutschland Research & Development GmbH
Mobil:
+49-172-2646541
Am Weiher 24
Email:
anna.greim at de.ibm.com
65451 Kelsterbach
Germany
IBM Deutschland Research & Development GmbH / Vorsitzende des
Aufsichtsrats: Martina Koederitz
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart,
HRB 243294
From: "Sobey, Richard A" <r.sobey at imperial.ac.uk>
To: "'gpfsug-discuss at spectrumscale.org'" <
gpfsug-discuss at spectrumscale.org>
Date: 10/10/2018 17:43
Subject: [gpfsug-discuss] Performance collector no results for
Capacity
Sent by: gpfsug-discuss-bounces at spectrumscale.org
Hi all,
Maybe I?m barking up the wrong tree but I?m debugging why I don?t get a
nice graph in the GUI for fileset capacity, even though the GUI does know
about things such as capacity and inodes and usage.
So off I go to the CLI to run ?mmperfmon query GPFSFilesetQuota? and I get
this:
Oct-10 16:33:28 [Info ] QueryEngine: (fd=64) query from 127.0.0.1: get
metrics GPFSFilesetQuota from node=icgpfsq1 last 10 bucket_size 1
Oct-10 16:33:28 [Info ] QueryParser: metric: GPFSFilesetQuota
Oct-10 16:33:28 [Warning] QueryEngine: searchForMetric: could not find
metaKey for given metric GPFSFilesetQuota, returning.
Oct-10 16:33:28 [Info ] QueryEngine: [fd=64] no data available for
query
Is this a golden ticket to my problem or should I be checking elsewhere?
I?m following a troubleshooting guide here:
https://www.ibm.com/support/knowledgecenter/en/STXKQY_5.0.1/com.ibm.spectrum.scale.v5r01.doc/bl1pdg_guiperfmonissues.htm
and from the page directly within the GUI server itself.
Notably, other things work ok:
[root at icgpfsq1 richard]# mmperfmon query cpu_user
Legend:
1: icgpfsq1|CPU|cpu_user
Row Timestamp cpu_user
1 2018-10-10-16:41:09 0.00
2 2018-10-10-16:41:10 0.25
3 2018-10-10-16:41:11 0.50
4 2018-10-10-16:41:12 0.50
5 2018-10-10-16:41:13 0.50
6 2018-10-10-16:41:14 0.25
7 2018-10-10-16:41:15 1.25
8 2018-10-10-16:41:16 2.51
9 2018-10-10-16:41:17 0.25
10 2018-10-10-16:41:18 0.25
I?m running 5.0.1-2 on all nodes except the NSD servers which still run
5.0.0.2.
Thanks
Richard_______________________________________________
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