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This makes it easier to ensure we catch all places
when we rename old api functions due to colissions with
functions in libctdb
(This used to be ctdb commit d643240783d4847591c5f72ee4d65e5daf1dbcf7)
->recovery_mode was set to normal but database priorities leven2 or 3 was still set to frozen.
causing the recovery daemon to fail to detect that a recovery was needed to recover access to the database.
BZ63951
(This used to be ctdb commit 7411b2b577a16f85ad6913e1bfccce7ea260a613)
Previously we could hang in poll with the callback pending (since we
fake it): explicitly call it immediately.
Note: I experienced corruption using DLIST_ADD_END (ctdb->pnn was blatted
when adding to the message_handler list). I switched them all to DLIST_ADD,
but maybe I'm using it wrong?
(This used to be ctdb commit 3727165f0d206999d2cfc2800ff8868640868c7c)
This is a bit tricky for those cases where we need to do multiple or
zero I/Os (eg. attachdb and readrecordlock), but works well for the
simple cases.
(This used to be ctdb commit ebe4dd724338c156423cfdcc10a75b68c2084cde)
This is a completely standalone library using only ctdb_protocol.h.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Header from folded patch 'libctdb-message-handling.patch':
libctdb: add message handling to libctdb.
Now clients can send and receive ctdb messages.
(This used to be ctdb commit 732cf6ead4aa2fbefc2b81328171f52c8d935341)
These simplifications mostly came up due to the implementation.
o Rename ctdb_context to ctdb_connection.
We already have a ctdb_context internally in ctdbd; don't confuse them!
o Rename ctdb_handle to struct ctdb_request.
From the user POV it's a request, and it's also useful internally to
avoid implicit cast to/from void *.
o Rename ctdb_db_context to ctdb_db.
o Introduce ctdb_lock.
This provides an explicit "lock object" you get from readrecordlock
and have to hand to those functions which need you to hold a lock.
o status args are "int" not int32_t.
Should this be a bool?
o Remove last traces on generic callback.
Without semi-sync API, this doesn't help anything and loses type safety.
o Remove the semi-async API.
We can add this later, but I think a sync and async API is enough for
our poor users for the moment :)
o Registering a message handler also takes a callback.
This way you can tell if it failed. Not sure if this is overkill, but it's
consistent.
o ctdb_service() takes an revents arg
Strictly not necessary for a nonblocking fd, but nice to know if a
read or write is possible.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 86e1f93df856f9627182ed0e18bfcff6866c0954)
This imports ctdb.h and tst.c from Ronnie's work: it's a separate commit
for now to make the changes obvious.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 09f05cbfc883e5aac33d3781b163cde178ece4cf)
ctdb_client.h is the existing internal client interface (which was mainly
in ctdb.h), and ctdb_protocol.h is the information needed for the wire
protocol only.
ctdb.h will be the new, shiny, libctdb API.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 4bba6b8cd47b352f98d41f9f06258d5ac3c9adef)
and returning an error.
This might not be sufficient if there are several recoveries in a row.
Instead loop as long as it takes for the recovery master to finish the recoveries and re
spond to the ipreallocate call.
Increase the log level of the error message when the recovery master was busy and could
not perform the ipreallocation promptly
BZ61783
(This used to be ctdb commit 8e9fd36e4619b7cc7bb6f7f7416d13e4c00a296a)
This resolves a problem with huge numbers of requests which could overflow
16 bits. Fortunately, the IDR should scale reasonably well, so we can simply
hold all the requests.
Although noone checks for failure, I added a constant for that.
BZ: 60540
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 72efc4122e37798227c3420a65ed1f706ca9ebe7)
verify that all nodes agree on the most recent ip address assignments
broke "ctdb moveip ..." since that call would never trigger
a full takeover run and thus would immediately trigger an inconsistency.
Add a new message to the recovery daemon where we can tell the recovery daemon to update its assignments.
BZ62782
(This used to be ctdb commit e7069082e5f0380dcddee247db8754218ce18cab)
same ip address as a normal public-address,
check for this in the natgw script and warn the user.
Also prevent ctdb from starting up since this configuration will not work.
BZ60933
(This used to be ctdb commit 480af69b63b9162c85d8e04461ca9e4a083c04a4)
The Samba tree defines _PUBLIC_ (and _PRIVATE_) for libraries to
control visibility. The last commit absorbed this from their tdb,
but we need to #define to stub it out since ctdb doesn't use it
(and doesn't need to: we only use tdb internally).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 54bee0ec670724c337b882e7dda3e999ffa80691)
We now use -fvisibilty=hidden to hide symbols from outside the tdb
shared library.
This also moved tdb_transaction_recover() into the tdb_private.h
header, as it should never have been a public API. For that reason we
are changing the version number. We're only doing a minor version
increment as it is extremely unlikely that anyone was actually using
tdb_transaction_recover() as its locking requirements were rather
unusual.
Pair-Programmed-With: Rusty Russell <rusty@samba.org>
(Imported from commit 773a8afbba)
(This used to be ctdb commit e174dc084f11db0eb239b643affef2c02c711b1c)
Upstream subunit makes a ":" after commands optional, so I've fixed any
places where we might trigger commands accidently. I've filed a bug
about this in subunit.
(Imported from commit 7da94cc4a6)
(This used to be ctdb commit f1242d9cba676d1d393375bea42613192c70662e)
