Bug 1327098
| Summary: | [RBD] rbd bench-write hangs if exclusive-lock is enabled or disabled during writes | ||
|---|---|---|---|
| Product: | [Red Hat Storage] Red Hat Ceph Storage | Reporter: | Tejas <tchandra> |
| Component: | RBD | Assignee: | Jason Dillaman <jdillama> |
| Status: | CLOSED ERRATA | QA Contact: | ceph-qe-bugs <ceph-qe-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 2.0 | CC: | ceph-eng-bugs, hyelloji, jdillama, kdreyer, nlevine, vakulkar |
| Target Milestone: | rc | ||
| Target Release: | 2.0 | ||
| Hardware: | Unspecified | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | ceph-10.2.0-1.el7cp | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-08-23 19:36:13 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
bench-write hangs if exclusive lock is enabled or disabled during writes. Upstream PR: https://github.com/ceph/ceph/pull/8511 Seeing the same issue when exclusive-lock is enabled during OS install on QEMU also The above PR is present in v10.2.0. Unable to reproduce the issue. Moving to verified state. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-1755.html |
Description of problem: rbd bench-write utility hangs, if when writes rae going on we enable the feature exclusive lock Version-Release number of selected component (if applicable): ceph 10.1.1 How reproducible: Always Steps to Reproduce: 1. create an plain rbd image format 2. 2. start bench-writes on it. 3. While writes are goin on, enable exclusive lock Actual results: Rbd bench write hangs. Expected results: IO should exit gracefully Additional info: [root@magna009 ~]# rbd create Tejas/img2 --size 100G [root@magna009 ~]# [root@magna009 ~]# rbd info Tejas/img2 rbd image 'img2': size 102400 MB in 25600 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.10ab2ae8944a format: 2 features: layering flags: [root@magna009 ~]# [root@magna031 ~]# rbd feature enable Tejas/img2 exclusive-lock,object-map,fast-diff 2016-04-14 07:32:28.571088 7f282ad4bd80 -1 asok(0x7f28362cee60) AdminSocketConfigObs::init: failed: AdminSocket::bind_and_listen: failed to bind the UNIX domain socket to '/var/run/ceph/rbd-clients/ceph-client.admin.11309.139810684334224.asok': (2) No such file or directory [root@magna031 ~]# [root@magna031 ~]# [root@magna031 ~]# rbd info Tejas/img2 2016-04-14 07:32:34.608944 7fc52ee8cd80 -1 asok(0x7fc539e77e00) AdminSocketConfigObs::init: failed: AdminSocket::bind_and_listen: failed to bind the UNIX domain socket to '/var/run/ceph/rbd-clients/ceph-client.admin.11333.140485056757856.asok': (2) No such file or directory rbd image 'img2': size 102400 MB in 25600 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.10ab2ae8944a format: 2 features: layering, exclusive-lock, object-map, fast-diff flags: object map invalid, fast diff invalid [root@magna031 ~]# [root@magna031 ~]# [root@magna031 ~]# rbd du Tejas/img2 2016-04-14 07:33:16.874555 7f0edb131d80 -1 asok(0x7f0ee62c3e00) AdminSocketConfigObs::init: failed: AdminSocket::bind_and_listen: failed to bind the UNIX domain socket to '/var/run/ceph/rbd-clients/ceph-client.admin.11355.139701967929440.asok': (2) No such file or directory warning: fast-diff map is invalid for img2. operation may be slow. NAME PROVISIONED USED img2 102400M 464M [root@magna031 ~]# [root@magna009 ~]# rbd bench-write Tejas/img2 bench-write io_size 4096 io_threads 16 bytes 1073741824 pattern sequential SEC OPS OPS/SEC BYTES/SEC 1 17034 15905.39 65148488.63 2 27706 13265.46 54335341.58 3 41443 13792.57 56494374.03 4 51952 12827.59 52541800.72 <--- hung for over an hour ^C [root@magna009 ~]#