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We can't just drop packets to the list, as those packets could be part
of the core protocol the client is using. This happens (for example)
when Samba is doing a traverse. If we drop a traverse packet then
Samba hangs indefinately. We are better off dropping the ctdb socket
to Samba.
(This used to be ctdb commit a7a86dafa4d88a6bbc6a71b77ed79a178fd802a6)
The TLIST_*() macros are like the DLIST_*() macros, but take both a
head and tail pointer for the list. This means that adding an element
to the end of the list is efficient (it doesn't need to walk the
list).
We should move all uses of the DLIST_*() macros which use
DLIST_ADD_END() to use the TLIST_*() macros instead.
(This used to be ctdb commit 2d05a71349e9ade869b62cf261c2a9a21818a474)
Check if the node is already enabled/disabled and log an information
message if so.
(This used to be ctdb commit c3eec8f10764a647106087099eeb47b7196f7aac)
packets, to avoid the queue to grow excessively if smbd has blocked.
This could cause traverse packets to become discarded in case the main
smbd daemon does a traverse of a database while there is a recovery
(sending a erconfigured message to smbd, causing an avalanche of unlock
messages to be sent across the cluster.)
This avalance of messages could cause also the tranversal message to be
discarded causing the main smbd process to hang indefinitely waiting
for the traversal message that will never arrive.
Bump the maximum queue length before starting to discard messages from
1000 to 1000000 and at the same time rework the queueing slightly so we
can append messages cheaply to the queue instead of walking the list
from head to tail every time.
(This used to be ctdb commit 59ba5d7f80e0465e5076533374fb9ee862ed7bb6)
There was a bug in tdb where the
tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1);
(ending the transaction-"mutex") was done before the
/* remove the recovery marker */
This means that when a transaction is committed there is a window where another
opener of the file sees the transaction marker while the transaction committer
is still fully functional and working on it. This led to transaction being
rolled back by that second opener of the file while transaction_commit() gave
no error to the caller.
This patch moves the F_UNLCK to after the recovery marker was removed, closing
this window.
(This used to be ctdb commit 898b5edfe757cb145960b8f3631029bfd5592119)
If "$1" was empty than loadconfig would load the ctdb config twice.
This stops that from happening.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 0406d406da70aaee7ad6aac236114905c5d03ed2)
Proper fix for 085d1bea78fabf754ef6dd6d323f74a1d361e45c's workaround.
$NFS_TICKLE_SHARED_DIRECTORY was being used before it is set via
loadconfig.
Ronnie actually spotted this one. :-)
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit ee8b2e298351d05197a2e1494f3331433644c1e6)
Also, change the order of the comparison so it is consistent with
others in the script.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 44696e15cdb23e7656d3bb0ead54f509495738a7)
This puts single quotes around everything and uses eval on the
command-lines that actually start ctdbd. The eval causes the single
quotes to be interpreted.
The "redhat" init style no longer uses the Red Hat daemon function.
It loses the quoting and re-splits on spaces. Instead we add an extra
line that uses the success/failure functions to keep things pretty.
Note that this means that we don't respect daemon's
$DAEMON_COREFILE_LIMIT variable but we do our own core file handling
with $CTDB_SUPPRESS_COREFILE anyway. daemon's core file handling was
probably overriding what we were doing anyway, so this can be regarded
as a bug fix.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 522fbb012524fe41a67dbe43589a282dda6bcbe2)
2 changes:
* If a relative nodes file is specified via -f or $CTDB_NODES_FILE but
this file does not exist then try looking for the file in /etc/ctdb
(or $CTDB_BASE if set).
* If a nodes file is specified via -f or $CTDB_NODES_FILE but this
file does not exist (even when checked as per above) then do not
fall back to /etc/ctdb/nodes ((or $CTDB_BASE if set). The old
behaviour was surprising and hid errors.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 60aa570aaa77d293b963105b3f605f9625a4594b)
This is very useful for testing, I use such a script:
cat ~/bin/ethtool
#!/bin/sh
IFACE=$1
case "$IFACE" in
Neth2)
;;
Neth3)
;;
Neth4)
;;
Neth5)
;;
*)
exec /usr/sbin/ethtool $@
;;
esac
ip link set down $IFACE
exec /usr/sbin/ethtool $@
metze
(This used to be ctdb commit 3bab985cf615720eded4d47b4f9f37a9c28840aa)
With this option set to "yes", we don't become unhealthy
as long as at least one interface is still available.
metze
(This used to be ctdb commit d054eb33c6ae92560cddb40732e5dcf622591a3c)
This makes sure that we don't get public addresses assigned during the
initial recovery and remove them again in the startup event.
metze
(This used to be ctdb commit f872e8c63a2f8979e6a0d088630575bdd4d7b4f1)
This only marks the interface status and doesn't
generate any directly triggered action.
The actions is later taken by the recovery process
in verify_ip_allocation.
metze
(This used to be ctdb commit cff58b27c970e9252d131125941c372019fd6660)
