Changes between Initial Version and Version 1 of Ticket #9682


Ignore:
Timestamp:
03/22/11 17:12:52 (15 years ago)
Author:
beirdo
Comment:

First thing to do... if you are worried about NFS mounts disappearing, mount them with options "soft,intr,retrans=6". The default is "hard,nointr,retrans=3". There is some risk of lost data due to doing this, but the NFS connection will no longer indefinitely hang.

Additional to that, the aio_write() may be a good plan (is this portable, and will it have the desired affect on non NFS writes?)

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  • Ticket #9682

    • Property Summary Myth Backend handles loss of disk poorly → Myth Backend handles loss of NFS mount poorly

  • Ticket #9682 – Description

    initial v1  
    1 
    21When an NFS server goes down in the middle of a recording any of the backend's ThreadedFileWriters writing to that disk become permanently wedged and CPU usage shoots up to near 100%.
    32