Description of problem: snapshot schedule missed thrice when observed with snap ls --all. Version-Release number of selected component (if applicable): 16.2.7-126.el8cp How reproducible: Observed thrice on same image in a span of 1-1:30 hours Steps to Reproduce: 1. Configure two clusters. 2. Configure mirroring on 150 images 3. add snapshot scheduling Actual results: Miss in alternate snapshot schedule for some of the images were observed. Expected results: Mirror Snapshots should get created (only with possible minimal delay) Additional info: Observation made on some of the images Links have cli output of machine's current time, snapshot schedule status, snap ls - http://pastebin.test.redhat.com/1061270 http://pastebin.test.redhat.com/1061268 http://pastebin.test.redhat.com/1061267 http://pastebin.test.redhat.com/1061265 http://pastebin.test.redhat.com/1061270
While scrubbing BZs in 6.1 today, we decided to re-iterate through this BZ and highlight particulars that can be used to begin with to analyze. Scrubbed available logs to cherry-pick particulars on issue that was tried to track earlier - (In reply to Vasishta from comment #0) > Additional info: > Observation made on some of the images > Links have cli output of machine's current time, snapshot schedule status, > snap ls - > http://pastebin.test.redhat.com/1061270 > http://pastebin.test.redhat.com/1061268 > http://pastebin.test.redhat.com/1061267 > http://pastebin.test.redhat.com/1061265 > http://pastebin.test.redhat.com/1061270 -------------------------------------------------------------------------------------- In above links 1) http://pastebin.test.redhat.com/1061265 has `snapshot schedule status` and `snap ls --all` of image create_delete_magna006_143 In 3rd line (o/p of snapshot schedule status) it can be observed that there should have been a primary snapshot created at 04:27:00 (with acceptable delay) But the actual next snapshot after 04:24:51 was 04:30:55 2) http://pastebin.test.redhat.com/1061267 has `snapshot schedule status` and `snap ls --all` of image create_delete_magna006_1 In 3rd (o/p of snapshot schedule status) it can be observed that there should have been a primary snapshot created at 05:57:00 But the next snap was created at 06:00:57 2022 (Last line) 3) http://pastebin.test.redhat.com/1061268 Expected - 05:33:00 (pastebin snippet doesn't have this recorded but following the pattern it can be observed) Actual - 05:37:02 (expected is 5:36:00) ----------------------------------------------------------------------------------------