| commit | d741eee4c90f0b6730b427d858740ddf0fff7fa7 | |
| author | Michael Adam <obnox@samba.org> | |
| Wed, 28 Oct 2009 00:54:04 +0000 (28 01:54 +0100) | ||
| committer | Karolin Seeger <kseeger@samba.org> | |
| Thu, 26 Nov 2009 10:40:34 +0000 (26 11:40 +0100) | ||
| tree | 8a624bcdfe0935b88eb33f7f744b76ce1633f706 | treesnapshot (tar.gz zip) |
| parent | 114d73ff98c4be6c98d18b346bce228bacf18ba1 | commitdiff |
s3:dbwrap_ctdb: fix a race in starting concurrent transactions on a single node
There are two races in concurrent transactions on a single node.
One in starting a transaction and one with replay during commit.
This commit closes the first race by storing the client pid in the
transaction-lock record and comparing the stored pid against its own
pid after releasing the lock and refetching the record inside the
transaction.
Michael
Signed-off-by: Michael Adam <obnox@samba.org>
(cherry picked from commit 7b37b8a5dcc08817b21e12570da6632674cc7575)
There are two races in concurrent transactions on a single node.
One in starting a transaction and one with replay during commit.
This commit closes the first race by storing the client pid in the
transaction-lock record and comparing the stored pid against its own
pid after releasing the lock and refetching the record inside the
transaction.
Michael
Signed-off-by: Michael Adam <obnox@samba.org>
(cherry picked from commit 7b37b8a5dcc08817b21e12570da6632674cc7575)
| source3/lib/dbwrap_ctdb.c | diffblobblamehistory |