Bug #10041: ceph-fuse: never exit when no MDS server is available - CephFS - Ceph

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Bug #10041

closed

ceph-fuse: never exit when no MDS server is available

Added by Dmitry Smirnov over 9 years ago. Updated over 9 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Category:

Target version:

% Done:

Source:

other

Tags:

Backport:

Regression:

Severity:

2 - major

Reviewed:

Affected Versions:

ceph-qa-suite:

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Crash signature (v1):

Crash signature (v2):

Description

I'm attempting to mount CephFS using Fuse client (i.e. ceph-fuse) which do not exit if all MDS servers are down (I waited for 4.5 hours on 0.87 "Giant").
A timeout should be implemented to allow ceph-fuse to give up unsuccessful mount attempt within reasonable time, certainly under 5 min.

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Updated by Dmitry Smirnov over 9 years ago

Description updated (diff)

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Updated by Greg Farnum over 9 years ago

Priority changed from High to Normal

Was it blocking in the foreground? Did SIGKILL (ie, control-C) work on it?

We can add a configurable timeout but I'm not sure how useful it is if it's blocking in the foreground and responds to signals anyway.

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Updated by Dmitry Smirnov over 9 years ago

Although it terminates on "Ctrl+C" a timeout would be very useful because it would prevent system from hanging on boot when mount is configured in "/etc/fstab".

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Updated by Dmitry Smirnov over 9 years ago

Just wanted to add that lack of timeout causes havoc all over the place... Autofs, backup scrips mounting CephFS on demand are all hanging... The above-mentioned fstab mounts that are especially nasty because boot never finishes and remote interaction is not possible due to fstab mount hangs before SSHD is started... Timeout is necessary...

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