Age | Commit message (Collapse) | Author | Files | Lines |
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Guenther
(cherry picked from commit bded298e022028d6237e25e1c785509bc983be9d)
(This used to be commit 93b0907aa43e55d2d4093567212b0c9731917351)
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Guenther
(cherry picked from commit dcf6d879a14a70ce5795eb8dcfbfe2fc5a8ad859)
(This used to be commit 8ac6a2739be870f286d19dc6bf8f0054a559b43b)
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Guenther
(This used to be commit c9e38fef647520e4038f04bd163678bf4b30853d)
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(This used to be commit 6fe27d296c389473c24e8c627a61bd56b364ad9f)
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(This used to be commit 9d3217bb28765e107c230fb90b578dcc6f5d4375)
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allowed for tdb. This is needed for the registry db backend.
(This used to be commit 4b04ec29c76df837a7909725bbbf4c79d5abdb4d)
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(This used to be commit a2f70fc175b748ef160a998d0563c28381ea3466)
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out of sync
(This used to be commit 571ec7893c8b40959c005d510c039e3f231ffc67)
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thinking it was a failure of a transaction cancel
(This used to be commit 22dbe158ed62ae47bbcb41bba3db345294f75437)
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(This used to be commit ddf3022595fe8ca378c5f52107f42e296f852685)
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(This used to be commit fe6a03e7b11cd859fddae5ba924ea5e071b8ccea)
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1) when all nodes write the same value to the record, or when writing
a value that is already there, we can skip the write and save
ourselves a network transactions
2) when all remote nodes fail an update, and we then fail a replay, we
don't need to trigger a recovery. This solves a corner case where
we could get into a recovery loop
(This used to be commit 2481bfce4307274806584b0d8e295cc7f638e184)
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could lead to it blocking forever
(This used to be commit a633390d3a7cb04a7c4e14cba9c533621793287e)
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(This used to be commit ba64a757f86fb60994e12e81416083ac0fa11c21)
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(This used to be commit 30a697c82db53f9d801e220a7c6277f873ebce67)
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(This used to be commit 76fbe56e827193d939676da23a580aa0f9394dd1)
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(This used to be commit 037516f1362c8d64da1d47a0cdaf83198d3eaeaf)
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(This used to be commit 21729256a550509c3c038efa5acdd6ac39027dce)
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(This used to be commit 2e85cbe88b3d1674b915f62e02be7d005fddaa39)
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(This used to be commit f91a3e0f7b7737c1d0667cd961ea950e2b93e592)
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Michael
(This used to be commit d776d8df262e1753fb428450140df94e63035af5)
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Only retry when ctdbd_persisten_update() failed.
Michael
(This used to be commit ff413a4614c8b272a34b2a9e56a329a8e8749a34)
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store.
Michael
(This used to be commit eaf76c751f9bde2843174b400c109304831df83e)
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as delete_rec operation from fetch_locked()
Michael
(This used to be commit f4aab595a0219305fbedf8890e787b690660a55a)
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to reduce code duplication.
Michael
(This used to be commit 09a197e756459877cab7b4d09f534c6a41cfdd71)
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This is because ctdbd can fail in performing the persistent_store
due to race conditions, and this does not mean it can't succeed
the next time.
To not loop infinitely, this makes use of a new parametric option:
"dbwrap ctdb:max store retries" (integer) which defaults to 5
and sets the upper limit for the number or repeats of the
fetch/store cycle.
Michael
(This used to be commit 2bcc9e6ecef876030e552a607d92597f60203db2)
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in the persistent db_ctdb_store operation.
This is to prevent deadlocks in db_ctdb_persistent_store().
There is a tradeoff: Usually, the record is still locked
after db->store operation. This lock is usually released
via the talloc destructor with the TALLOC_FREE to
the record. So we have two choices:
- Either re-lock the record after the call to persistent_store
or cancel_persistent update and this way not changing any
assumptions callers may have about the state, but possibly
introducing new race conditions.
- Or don't lock the record again but just remove the
talloc_destructor. This is less racy but assumes that
the lock is always released via TALLOC_FREE of the record.
I choose the first variant for now since it seems less racy.
We can't guarantee that we succeed in getting the lock
anyways. The only real danger here is that a caller
performs multiple store operations after a fetch_locked()
which is currently not the case.
Michael
(This used to be commit d004c9a7281d2577c3ba2012c8f790cc198ea700)
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Michael
(This used to be commit c939c55e5182258092faceefa58a7f328f18619e)
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database in an inconsistent state if we crash during the operation
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
(This used to be commit 09329f1f9114af44fc4e5e4f29a7315912313125)
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(This used to be commit 549db133df6782bcca7d033e8573e47716877cbd)
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With the ctdb checkin dde9f3f006 tdb optimized out write lock checks for
write-enabled transaction. Sadly, this also removed the possibility to ever
remove dead records left over from tdb_delete calls within a transaction.
Tridge, please check this! Did dde9f3f006 have any reason beyond performance
optimizations?
Thanks,
Volker
(This used to be commit 3f884c4ae36f3260e63626bdd4989d9258ae6497)
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Here is a patch to allow many subsystems to be re-initialized. The only
functional change I made was to remove the null context tracking, as the memory
allocated here is designed to be left for the complete lifetime of the program.
Freeing this early (when all smb contexts are destroyed) could crash other
users of talloc.
Jeremy.
(This used to be commit 8c630efd25cf17aff59448ca05c1b44a41964b16)
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one of our virtualised functions, such as db_open(), but error is only
set when a system call fails, and it is not uncommon for us to fail a
function internally without ever making a system call. That led to us
passing back success when a function had in fact failed.
I found two places where we relied on map_nt_error_from_unix()
returning success when errno==0, but lots and lots of places where we
relied on the reverse, so I fixed those two places.
map_nt_error_from_unix() will now always return an error, returning
NT_STATUS_UNSUCCESSFUL if errno is 0
(cherry picked from commit 69d40ca4c1af925d4b0e59ddc69ef8c26e6501d1)
(This used to be commit 834684a524a24bb4eb46b4af583d39947dc87d95)
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for one
(This used to be commit 469ba9b87103aa0053c371e481acc5acf0f98ac1)
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Guenther
(This used to be commit 4fea49ae83510225c51c580a2bea2c664851bb39)
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Guenther
(This used to be commit b2a413148e470e059c877f4e54955ab61559edee)
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Guenther
(This used to be commit 01c4640b1ca66c3285fd23d447d08db12cf83b42)
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Guenther
(This used to be commit bb52ba58e47364d7c7ed38862a007e8e3d9dc104)
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Guenther
(This used to be commit bd31d8f9ec9a24ca68e1d5441c0cafd98132060f)
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Guenther
(This used to be commit 53dc9a11810b93a1771304fbfbf4ae84f551612b)
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Guenther
(This used to be commit d4a51bb01d33ad17db4e623085a89d258e91b57e)
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Guenther
(This used to be commit 563fb06107d2d3279e08c5c801a940f03229131b)
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Guenther
(This used to be commit a9c444a342968b539918c082b78af8640f8c87cd)
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Guenther
(This used to be commit bb345187b7c62e9ad214037120545addd87a666d)
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Guenther
(This used to be commit 7f7e6ca9091101aa7a3dc275c1d0258d97743f4b)
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Guenther
(This used to be commit 316575b412e19008ecb6729f97e93b6103d8ba56)
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Guenther
(This used to be commit b4c912bfbc62768ff4d7ecb39c02dc4a2a9825d2)
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Guenther
(This used to be commit 5648145bec3bd24ecedea24a8834ac6768bfc640)
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Guenther
(This used to be commit 99cc8f023b4ad9210b677e11371f404048752031)
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Guenther
(This used to be commit 36f1e45e4ec295115f1ba39ec7ad3690a96dac3e)
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