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The valgrind start case should not use daemon, since this is specific
to Red Hat.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 867f57d166395c92949e480ca725249b0ca8950b)
Use a local variable $ctdbd so that we always run ctdbd from the the
same place and so that we know what to kill. This variable respects
the $CTDBD environment variable, which may be used to specify an
alternative location for the daemon.
In the important cases use "pkill -0 -f" to check if ctdbd is
running. Also, remove the special case for killing ctdbd when running
under valgrind. The regular case will handle this just fine.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 070305adfe636c2580776e6bf24bb8be06622b86)
Glitches during restarts of the CTDB cluster have been causing some
tests to fail. This is because restarts are initiated in the body of
many tests. This adds a simple function ctdb_restart_when_done, which
schedules a restart using an existing hook in the test exit code.
This function is now used in tests that need to restart CTDB.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit fc69b6a66282d5be6edeb286bf72aeafb252e6dd)
Commit a0f5148ac749758e2dfbd6099e829c5bf1d900e6 caused a subtle
regression. Due to the subtlety, this description is much longer than
the 1 line patch that fixes it! The regression, where a process that
invokes onnode is unexpectedly blocked, is only apparent if the
following conditions are met:
1. $CTDB_NODES_SOCKETS is set;
2. The command passed to onnode attempts to background a process; and
3. onnode is run in certain types of subshell (e.g. foo=$(onnode ...)).
In particular, when testing against local daemons (i.e. condition (1)
is met), tests/simple/07_ctdb_process_exists.sh would fail (because it
does both (2), (3)).
The problem is caused by the use of file descriptor 3 in the code that
allows separate filtering of stdout and stderr. A backgrounded
process will have this descriptor open and the $(...) construct
appears to wait for all file descriptors to be closed. This only
happens with local daemons because SSH is replaced by a shell and file
descriptor 3 leaks into that shell. It does not occur when SSH is
used because the file descriptor does not leak into the remote shell
where the process is backgrounded.
The fix is simply to redirect file descriptor 3 to /dev/null in the
fakessh function, which is used when $CTDB_NODES_SOCKETS is set.
Also fixed is another minor bug when the -o option and
$CTDB_NODES_SOCKETS are used in combination. The code uses the node
name as a suffix for the output filename(s). Usually this is an IP
address. However, when $CTDB_NODES_SOCKETS is in use the node name is
the socket name, which might be a path several directories deep.
Each output file is created via a simple redirection and this would
fail if unexpected directories appear in the filename. 3 possible
fixes were considered:
1. Replace all '/'s in the node name by '_'s. Nice and simple.
2. Use the basename of the node name. However, sockets may be in
different directories but have the same basename.
3. Create all required directories before redirecting. This is a
little more complex and probably doesn't meet the user's
expectations.
Option (1) is implemented here.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 5d320099025b6835eda3a1e431708f7e0a6b0ba6)
This allows us to timeout the operation if the underlying filesystem has become temporarily unresponsive without causing a new recovery.
(This used to be ctdb commit d177b08f1dc79534491f27726b05405d47e12e20)
New tests/complex/ subdirectory contains 2 new tests to ensure that
NFS and CIFS connections are tracked by CTDB and that tickle resets
are sent when a node is disabled.
Changes to ctdb_test_functions.bash to support these tests.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 5d188af387a2a1d68d66f47edb7a9ca546ed357c)
The threshold for the difference in the number messages sent in either
direction around the ring of nodes was set to 2%. Something
environmental is causing this different to sometimes be as high as 3%.
We're confident it isn't a CTDB issue so we're increasing the
threshold to 5%.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit be3e23c9fcb9c716e492af102830a4f6ad8bda7b)
in this case, read the nodes file directly instead of asking the local daemon for the list.
add an option -Y to provide machinereadable output to listnodes
(This used to be ctdb commit 4a55cacc4f5526abd2124460b669e633deeda408)
AIX dont have getopt.h by default.
Dont try including this file when building on AIX
(This used to be ctdb commit 06b33a826e71e1dd2f9e02ad614be55535d42045)
This is used to mark nodes as being DELETED internally in ctdb
so that nodes are not renumbered if / when they are removed from the nodes file.
This is used to be able to do "ctdb reloadnodes" at runtime without
causing nodes to be renumbered.
To do this, instead of deleting a node from the nodes file, just comment it out like
1.0.0.1
#1.0.0.2
1.0.0.3
After removing 1.0.0.2 from the cluster, the remaining nodes retain their
pnn's from prior to the deletion, namely 0 and 2
Any line in the nodes file that is commented out represents a DELETED pnn
(This used to be ctdb commit 6a5e4fd7fa391206b463bb4e976502f3ac5bd343)
Make the default be that transaction is not allowed and any attempt to create a nested transaction will fail with TDB_ERR_NESTING.
If an application can cope with transaction nesting and the implicit
semantics of tdb_transaction_commit(), it can enable transaction nesting
by using the TDB_ALLOW_NESTING flag.
(This used to be ctdb commit 3e49e41c21eb8c53084aa8cc7fd3557bdd8eb7b6)
