More ACK Woes
2006-09-12 13:09:45
Last night my 2.5.1 backups failed spectacularly:
ambiance.med.utah.edu sdc1 lev 0 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t11d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
ambiance.med.utah.edu sdc1 lev 0 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
ambiance.med.utah.edu sdc1 lev 0 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t11d0s0 lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t11d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
ambiance.med.utah.edu sdb5 lev 0 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t1d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
ambiance.med.utah.edu / lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t1d0s0 lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t1d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
ambiance.med.utah.edu sdb5 lev 0 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
ambiance.med.utah.edu sdb5 lev 0 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t2d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
ambiance.med.utah.edu / lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
ambiance.med.utah.edu / lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t2d0s0 lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t2d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t10d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t10d0s0 lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t10d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t12d0s0 lev 2 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t12d0s0 lev 2 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t12d0s0 lev 2 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t11d0s1 lev 2 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t11d0s1 lev 2 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t11d0s1 lev 2 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t10d0s1 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t0d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t0d0s0 lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t0d0s0 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
eclectic.med.utah.edu /opt/sybase/backup lev 1 FAILED [cannot read header:
got 0 instead of 32768]
episun7.med.utah.edu c0t10d0s1 lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
episun7.med.utah.edu c0t10d0s1 lev 1 FAILED [cannot read header:
got 0 instead of 32768]
eclectic.med.utah.edu /opt/sybase/backup lev 1 FAILED [too many dumper
retry: "[request failed: timeout waiting for ACK]"]
eclectic.med.utah.edu /opt/sybase/backup lev 1 FAILED [cannot read header:
got 0 instead of 32768]
I've changed common-src/protocol.c to:
#define ACK_WAIT 100 /* time (secs) to wait for ACK - keep short */
#define ACK_TRIES 10 /* num retries after ACK_WAIT timeout */
and still no joy. I logged in last night and found 12 gtar
processes running on ambiance with the load average around 15!
Such strange behavior, I have inparallel set to 6 in my
amanda.conf, could this have something to do with it?
Steve
--
Steven J. Backus Computer Specialist
University of Utah E-Mail: steven.backus AT utah DOT edu
Biomedical Informatics Alternate: backus AT math.utah DOT edu
391 Chipeta Way -- Suite D150 Office: 801.587.9308
Salt Lake City, UT 84108-1266 http://www.math.utah.edu/~backus
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