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The only non-obvious part here is dropping the setting of the nodemap
local variable to NULL. If the following control succeeds then it is
set, otherwise return and it doesn't matter.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
That is, using CTDB_CURRENT_NODE makes this more obvious.
Also fix incorrect error messages.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Each recovery daemon knows who the recmaster is and is in sync with
its local daemon. The recovery master is running this check so do not
bother checking with its local daemon - both agree that it is the
recovery master.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The recovery daemon already knows which node is the master. This
relies on rec->recmaster being correctly initialised and correctly set
during elections.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Recovery should not do cluster management functions. Setting the
recovery master should only be done via an election.
Main loop will determine if recovery master is inconsistent across the
cluster and force an election if necessary.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The recovery daemon pushes knowledge of recovery master election
progress/result to local daemon. It then retrieves that information
again.
Instead, have the recovery daemon reliably track election
progress/result in rec->recmaster so it doesn't need to be retrieved.
Be careful to maintain consistency by only doing this when the local
daemon has been updated.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
There can be no holes in the nodemap. Even if a node has been deleted
it will take a slot in the nodemap. The only exception is that the
nodemap shrinks if nodes are deleted from the end. That should never
include the master because a node should be shutdown before being
deleted, and an election should already have take place.
To avoid walking off the end of the nodemap nodes array just confirm
that the master node's PNN is a valid index into the array. No need
to walk through the nodemap.
After this, in this section of the code j is now invalid. So use the
master's PNN to index into the nodemap. This is safe.
In the process, clean up some log messages to avoid saying "Force
reelection". It's just an "election".
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This only applies to monitor events so renaming clarifies this.
Note that this change is not backward compatible. Users with
CTDB_SET_EventScriptTimeoutCount=<n>
in their configuration will get failures when starting CTDB but the
cause will be clearly logged.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
It is only updated for monitor events, so it is meaningless here.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
* The defaults for EventScriptTimeout and EventScriptTimeoutCount are
wrong.
* EventScriptTimeout is the total time for all enabled scripts that
are run for an event, not a single event script.
* EventScriptTimeoutCount only applies to monitor events.
* EventScriptUnhealthyOnTimeout is obsolete, so remove it.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Checking runstates is unnecessary now that nodes that are not RUNNING
will return no available IP addresses. I have no idea why I didn't do
it this way originally.
Tweak the test code to cope with this.
Note that this is a backward-incompatible change. If new and old
versions of CTDB are running together in a cluster and a new node
takes over as recovery master then old nodes will be able to host
public IP addresses before they are in RUNNING runstate. This is
mitigated by the bias towards recovery master stability in elections.
If it is important that nodes do not host IPs until they are RUNNING
then do not restart nodes running the old version.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The available IPs list is now only non-empty for nodes that are in
RUNNING runstate. So, to avoid running the IP allocation algorithm
when there are no available available IPs, explicitly check for
available IPs rather than checking runstates.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This will allow wonderful simplification (i.e. removal) of some of the
runstate checking in the takeover run code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Include system_util.c in ctdb-system subsystem.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Mon Nov 16 03:51:36 CET 2015 on sn-devel-104
This makes the function compatible with parse_debug().
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
This allows for backward compatibility with the current code where
DEBUG_ERR corresponds to "ERR".
Fix the test that relies on "ERR" instead of "ERROR".
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
This variable is used for adding a prefix to log entries from various
child processes.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
These functions are only used in the ctdb daemon code.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
This function can only called from ctdb daemon.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Nov 14 00:39:17 CET 2015 on sn-devel-104
Removes accessor functions as now this parameter is set
under user control in smb.conf. Default is 100.
Note that this doesn't limit the number of outstanding
aio requests, it just causes them to go onto the
pthreadpool queue.
Now we need to prioritize pthreadpool pipe replies
ahead of incoming SMB2 requests, but that's a patch
for another day.
Based on ideas from Volker.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Rely on pthreadpool queueing instead of falling back.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
"idmap config DOMAIN : OPTION" is the pattern used.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Nov 13 19:55:33 CET 2015 on sn-devel-104
This enables the codepaths calling fsync for FLUSH requests during
selftest.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Christof Schmitt <cs@samba.org>
Autobuild-Date(master): Fri Nov 13 04:47:00 CET 2015 on sn-devel-104
SMB2 FLUSH mainly calls fsync and there is already code in place to
handle fsync asynchronously, so use the asynchronous code path for SMB2
FLUSH. This avoids a SMB2 FLUSH stalling other requests processing.
Signed-off-by: Christof Schmitt <cs@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Guenther
Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Nov 13 01:43:36 CET 2015 on sn-devel-104
