General

Profile

Zheng Yan

Issues

Projects

  • Ceph (Developer, Reporter, 01/25/2013)
  • Linux kernel client (Developer, Reporter, 01/25/2013)
  • phprados (Developer, Reporter, 01/25/2013)
  • devops (Developer, Reporter, 01/25/2013)
  • rbd (Developer, Reporter, 01/25/2013)
  • rgw (Developer, Reporter, 01/25/2013)
  • sepia (Developer, Reporter, Backporter, 01/25/2013)
  • fs (Developer, Reporter, 01/25/2013)
  • teuthology (Developer, Reporter, 01/25/2013)
  • rados-java (Developer, Reporter, 05/24/2013)
  • Calamari (Developer, Reporter, 08/27/2014)
  • Ceph-deploy (Developer, Reporter, 10/03/2014)
  • ceph-qa-suite (Developer, Reporter, 06/09/2015)
  • Tools (Developer, Reporter, Backporter, 01/26/2016)
  • Infrastructure (Developer, Reporter, Backporter, 01/26/2016)
  • ceph-cm-ansible (Developer, Reporter, Backporter, 01/26/2016)
  • paddles (Developer, Reporter, Backporter, 01/26/2016)
  • pulpito (Developer, Reporter, Backporter, 01/26/2016)
  • downburst (Developer, Reporter, Backporter, 01/28/2016)
  • ovh (Developer, Reporter, Backporter, 02/02/2016)
  • www.ceph.com (Developer, Reporter, Backporter, 08/22/2016)
  • CI (Reporter, 01/10/2017)
  • mgr (Developer, Reporter, 06/28/2017)
  • rgw-testing (Developer, Reporter, 11/01/2016)
  • RADOS (Developer, Reporter, 06/07/2017)

Activity

Today

09:03 AM fs Bug #20892 (Verified): qa: FS_DEGRADED spurious health warnings in some sub-suites
kcephfs suite has similar issue:
http://pulpito.ceph.com/teuthology-2017-08-19_05:20:01-kcephfs-luminous-testing-bas...

08/16/2017

02:58 AM fs Bug #21004: fs: client/mds has wrong check to clear S_ISGID on chown
The logical is from kernel_src/fs/attr.c...

08/15/2017

01:46 AM Linux kernel client Bug #20998 (Verified): RHEL74 GA kernel paniced on client node running smallfile tests with 3 act...
it's likely fixed by...

08/11/2017

03:18 AM fs Bug #20938: CephFS: concurrent access to file from multiple nodes blocks for seconds
...

08/10/2017

02:29 AM fs Bug #20938: CephFS: concurrent access to file from multiple nodes blocks for seconds
what worry me is comment in fuse_lowlevel.h...
02:08 AM fs Bug #20945: get_quota_root sends lookupname op for every buffered write
lookupname is for following case:
directory /a /b have non-default quota
client A is writing /a/file
client ...

08/09/2017

10:39 AM fs Bug #20938 (Verified): CephFS: concurrent access to file from multiple nodes blocks for seconds
this slowness is due to limitation of fuse API. The attached patch is a workaround. (not 100% sure it doesn't break a...
08:46 AM fs Bug #20945: get_quota_root sends lookupname op for every buffered write
enabling quota and writing to unlinked file can produce this easily. get_quota_root() uses dentry in dn_set if it has...

08/08/2017

02:22 PM fs Bug #20938: CephFS: concurrent access to file from multiple nodes blocks for seconds
I tried on latest Luminous RC + 4.12 kernel client. I got about 7000 opens/second in two nodes read-write case.
did ...

08/03/2017

08:32 AM Linux kernel client Bug #20528 (Resolved): cephfs client io hang when read file with specified layout

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