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cluster/cmirror-kernel/src dm-cmirror-client.c ...
- From: jbrassow at sourceware dot org
- To: cluster-cvs at sources dot redhat dot com
- Date: 22 Mar 2007 22:21:59 -0000
- Subject: cluster/cmirror-kernel/src dm-cmirror-client.c ...
CVSROOT: /cvs/cluster
Module name: cluster
Branch: RHEL4
Changes by: jbrassow@sourceware.org 2007-03-22 22:21:59
Modified files:
cmirror-kernel/src: dm-cmirror-client.c dm-cmirror-server.c
dm-cmirror-xfr.h
Log message:
Bug 233034: cmirror server failure/migration during GFS I/O causes metad...
(Likely fixes other bugs as well.)
When a cmirror client timed out waiting for a response from the server,
it would send the request again. Sometimes, the server simply took to
long to get back to the client... it would then develop an off-by-one
error - responding to the first _and_ the second request. The client
could then be asking to mark a region, and recieve a response for
a previous request. This has the potential to cause many problems.
Sequence numbers have been added to fix the problem.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/cmirror-kernel/src/dm-cmirror-client.c.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.1.2.41&r2=1.1.2.42
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/cmirror-kernel/src/dm-cmirror-server.c.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.1.2.26&r2=1.1.2.27
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/cmirror-kernel/src/dm-cmirror-xfr.h.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.1.2.2&r2=1.1.2.3