> The queues are steadily rising and we've seen them over 1000000 ... There is definitely a song here... I see you playing the blues guitar...
I can't answer your question directly. As I recall you are at the latest version? We recently had to update to 4.2.3.4 due to an AFM issue - where if the home NFS share was disconnected, a read operation would finish early and not re-start. One thing I would do is look at where the 'real' NFS mount is being done (apology - I assume an NFS home). Log on to bber-afmgw01 and find where the home filesystem is being mounted, which is below /var/mmfs/afm Have a ferret around in there - do you still have that filesystem mounted? -----Original Message----- From: gpfsug-discuss-boun...@spectrumscale.org [mailto:gpfsug-discuss-boun...@spectrumscale.org] On Behalf Of Simon Thompson (IT Research Support) Sent: Monday, October 09, 2017 2:57 PM To: gpfsug-discuss@spectrumscale.org Subject: [gpfsug-discuss] AFM fun (more!) Hi All, We're having fun (ok not fun ...) with AFM. We have a file-set where the queue length isn't shortening, watching it over 5 sec periods, the queue length increases by ~600-1000 items, and the numExec goes up by about 15k. The queues are steadily rising and we've seen them over 1000000 ... This is on one particular fileset e.g.: mmafmctl rds-cache getstate Mon Oct 9 08:43:58 2017 Fileset Name Fileset Target Cache State Gateway Node Queue Length Queue numExec ------------ -------------- ------------- ------------ ------------ ------------- rds-projects-facility gpfs:///rds/projects/facility Dirty bber-afmgw01 3068953 520504 rds-projects-2015 gpfs:///rds/projects/2015 Active bber-afmgw01 0 3 rds-projects-2016 gpfs:///rds/projects/2016 Dirty bber-afmgw01 1482 70 rds-projects-2017 gpfs:///rds/projects/2017 Dirty bber-afmgw01 713 9104 bear-appsgpfs:///rds/bear-apps Dirty bber-afmgw02 3 2472770871 user-homesgpfs:///rds/homes Active bber-afmgw02 0 19 bear-sysapps gpfs:///rds/bear-sysapps Active bber-afmgw02 0 4 This is having the effect that other filesets on the same "Gateway" are not getting their queues processed. Question 1. Can we force the gateway node for the other file-sets to our "02" node. I.e. So that we can get the queue services for the other filesets. Question 2. How can we make AFM actually work for the "facility" file-set. If we shut down GPFS on the node, on the secondary node, we'll see log entires like: 2017-10-09_13:35:30.330+0100: [I] AFM: Found 1069575 local remove operations... So I'm assuming the massive queue is all file remove operations? Alarmingly, we are also seeing entires like: 2017-10-09_13:54:26.591+0100: [E] AFM: WriteSplit file system rds-cache fileset rds-projects-2017 file IDs [5389550.5389550.-1.-1,R] name remote error 5 Anyone any suggestions? Thanks Simon _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpfsug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=01%7C01%7Cjohn.hearns%40asml.com%7Caa732d9965f64983c2e508d50f15424e%7Caf73baa8f5944eb2a39d93e96cad61fc%7C1&sdata=wVJhicLSj%2FWUjedvBKo6MG%2FYrtFAaWKxMeqiUrKRHfM%3D&reserved=0 -- The information contained in this communication and any attachments is confidential and may be privileged, and is for the sole use of the intended recipient(s). Any unauthorized review, use, disclosure or distribution is prohibited. Unless explicitly stated otherwise in the body of this communication or the attachment thereto (if any), the information is provided on an AS-IS basis without any express or implied warranties or liabilities. To the extent you are relying on this information, you are doing so at your own risk. If you are not the intended recipient, please notify the sender immediately by replying to this message and destroy all copies of this message and any attachments. Neither the sender nor the company/group of companies he or she represents shall be liable for the proper and complete transmission of the information contained in this communication, or for any delay in its receipt. _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
