Re: cyrus-murder problems with database corruption in the frontend/master

From: Joćo Assad (no email)
Date: Sat Apr 09 2005 - 12:43:41 EDT

  • Next message: Joćo Assad: "Re: cyrus-murder problems with database corruption in the frontend/master"

    Henrique de Moraes Holschuh wrote:

    >Just thought of something. Please set the
    >vm.overcommit_memory syscall to 2 (it is available in /proc/sys, I think.
    >But the right way is to use /etc/sysctl.conf and sysctl).
    >
    >Make *really* sure you have enough swap when you do that. You will *really*
    >need it.
    >
    >Some look on /proc/meminfo (especially on CommitLimit and Committed_AS)
    >might shed some light if that is the problem.
    >
    >
    >
    Yeah I thought that might help too, I did that yesterday after the last
    corruption
    I also set the overcommit_ratio to 100

    So far everything is running smooth. but I also recuced the
    mupdate_workers configs, which usually makes cyrus last longer.
    Im getting anxious here, I already have 643M worth of straces since I
    started it. So far no ENOMEMs .

    My current meminfo
    MemTotal: 2074268 kB
    MemFree: 277240 kB
    Buffers: 93244 kB
    Cached: 1437800 kB
    SwapCached: 3216 kB
    Active: 1247724 kB
    Inactive: 402988 kB
    HighTotal: 1178756 kB
    HighFree: 153984 kB
    LowTotal: 895512 kB
    LowFree: 123256 kB
    SwapTotal: 2096472 kB
    SwapFree: 2093068 kB
    Dirty: 1448 kB
    Writeback: 0 kB
    Mapped: 136136 kB
    Slab: 46308 kB
    CommitLimit: 4170740 kB
    Committed_AS: 1494736 kB
    PageTables: 90924 kB
    VmallocTotal: 114680 kB
    VmallocUsed: 2072 kB
    VmallocChunk: 112208 kB
    HugePages_Total: 0
    HugePages_Free: 0
    Hugepagesize: 2048 kB

    ---
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