New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

luminous: mds: mds got laggy because of MDSBeacon stuck in mqueue #23556

Merged
merged 1 commit into from Sep 17, 2018

Conversation

Projects
None yet
5 participants
@batrick
Member

batrick commented Aug 13, 2018

mds: use fast dispatch to handle MDSBeacon
Current mds handles MDSBeacon messages through MDSRank::ms_dispatch().
MDSRank::ms_dispatch() locks mds_lock at the very beginning. This means
that long running task (such as processing finished contexts) can delay
MMDSBeacon. Using fast dispatch for MDSBeacon can avoid this issue.

Fixes: http://tracker.ceph.com/issues/23519
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 7fc04be)

@batrick batrick added the cephfs label Aug 13, 2018

@tchaikov tchaikov added this to the luminous milestone Aug 14, 2018

@smithfarm smithfarm requested a review from ukernel Aug 23, 2018

@yuriw

This comment has been minimized.

Contributor

yuriw commented Sep 13, 2018

@batrick

This comment has been minimized.

Member

batrick commented Sep 17, 2018

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

@yuriw yuriw merged commit d6d5b63 into ceph:luminous Sep 17, 2018

4 checks passed

Docs: build check OK - docs built
Details
Signed-off-by all commits in this PR are signed
Details
Unmodified Submodules submodules for project are unmodified
Details
make check make check succeeded
Details

@batrick batrick deleted the batrick:i26924 branch Sep 26, 2018

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment