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Dont update the statd settings that often.
When we have very many nodes and very many ips, this would generate
a lot of unnessecary load on the system
(This used to be ctdb commit 0c030c9384500f340d8382c20e1e91b11aa377e9)
We were potentially leaving a node unable to serve requests for too
long.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 5be8610ffa33db49e33949560d0ef2fa5f3c0c73)
This was defaulting to just "service nfs restart", which doesn't have
the workarounds we need.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 0f462e9e9fe12b595f3c7452123db8e69548abd6)
Otherwise we might short-circuit events that are run only once and
actually need to do something.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit c4f9e8a43540bc049b2771e0a2d76d37b9d17331)
Otherwise there can be strange error messages from services
stopping/starting, without any context.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 8bcf7ab164429ddc0ae530133e114f186a8146dd)
"service nfs restart" can fail. To stop nfsd it sends a SIGINT and
nfsd might take a while to process it if the system is loaded.
Starting nfsd may then fail because resources are still in use.
This does some /proc magic to tell nfsd to do no more processing. It
then runs service stop, kills nfsd with SIGKILL, and then runs service
start. This is much less likely to fail.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit a9bf4f82852975b0b627f61ceb2d23401f630805)
availability at all (since we cant restart it, there is not point checking
if it is alive)
(This used to be ctdb commit 6075e85ba6c0f58fd1ab2ce3b09dd3d6ff491365)
Httpd can be very slow to start on some platforms,
wait 5 monitor intervals before we try to restart it if
it has not bound to port 80 yet.
After 10 failed intervals, flag the node as unhealthy.
(This used to be ctdb commit 6ec1993aa5f2778b8227ce5f6eca0d19e4ae9788)
Try to restart LOCKD after 10 failures and
flag the node as unhealthy after 15 failures
(This used to be ctdb commit 5a67889c9166835aef3443051812d14af07dfca5)
Net serverid wipe can take a bit of time sometimes so background it.
Only perform auto start/stop of the managed service on the monitor event
(This used to be ctdb commit deba5cbbf7703a1a24ce88a06c73fca056e05521)
make changes to ctdb event scripts to support NFS-Ganesha.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
(This used to be ctdb commit 7298588ed54492f106954c893dd86b0a36783470)
We put the ip on loopback just to make sure we would still interoperate with
non-standard configurations on unix-KDC, that are configured to verify the optional
HostAddresses field.
This is not required for AD, since AD does not use this field, and is replaced in
unix land with other/better mechanisms than this "dodgy" check.
This makes it "easier" for applications that have bound to the natgw address
to detect a socket problem and try to reconnect/recover if the ip address
is completely missing from the system.
At the same time, use the winbind specific hook that exists to explicitely tell winbindd : this address is gone, so if you have bound to it, this is a good time to close and rebind your socket.
cq 1020333
(This used to be ctdb commit 0da94869d2912b2a412ba3fbd2137d88ce4e4389)
ctdb_service_start() currently succeeds if ctdb_counter_init()
succeeds.
This changes it to fail when a service start fails.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit ddb73962d72d933bf0edc28be0dbb45bea7e5ef4)
When the value of $CTDB_MANAGES_SAMBA or $CTDB_MANAGES_WINBIND (or
corresponding changes are made to $CTDB_MANAGED_VERSIONS), the
associated service should be started or stopped as necessary.
This add calls to ctdb_start_stop_service() to manage
starting/stopping samba and winbind.
An associated cleanup is made to the initial checks that one of
$CTDB_MANAGES_SAMBA or $CTDB_MANAGES_WINBIND is set, replacing them
with calls to is_ctdb_managed_service().
To handle the winbind cases ctdb_start_stop_service() and
is_ctdb_managed_service() are updated to take an optional service name
parameter.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit d98f175e8420d921a123ae9c0ce00945350b1537)
update nfs to try to restart the service after 10 consecutive failures
and to flag the node unhealthy after 15
add similar function to mountd
(This used to be ctdb commit 1569a54bb82fc433895ed68f816cf48399ad9d40)
Rename loadconfig() to _loadconfig(). Add a new loadconfig() that
simply calls _loadconfig().
This makes it easy for the test suite to override loadconfig().
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 1d77a3adfff893b3c01b87f791e72c0d3148425c)
These failures are sometimes the result of slow restarts so we want to
avoid dirtying the logs or marking a node unhealthy because of them,
unless they are excessive.
For these 2 cases we use the existing fail counting code but hack a
temporary service_name in a subshell to allow separate fail counts.
We also update ctdb_check_rpc() so that it captures the error output
from rpcinfo and we add a message including the service name to the
beginning. The error is printed to stdout but is also stored in
ctdb_check_rpc_out to allow it to be conditionally used by the caller.
This function also now returns non-zero rather than exiting on
failure.
Other direct rpcinfo calls are relaced by called to ctdb_check_rpc()
for consistency.
Option handling code for service restarts is cleaned up so that fits
in 80 columns. A more informative restart messageis now used in all
cases, printing the exact command being used to start a service.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 79c25fe241cf5d8f92e23d3736823ebaf4e1769d)
on any kind of tiny unexpected error
unconditionally try to remove ip addresses from both old and new interface
before trying to add it to the new interface to make it less
fragile
(This used to be ctdb commit 80acca2c91c9053c799365bae918db7ed8bdc56f)
this stops the script from failing with an error if
both interfaces are specified as the same, which otherwise breaks and leads to an infinite recovery loop
(This used to be ctdb commit 565de03a784ed441490f8cd0b137b5cec8716d55)
Ctdb can also be configured to ignore checking for knfsd and if it is alive.
In that situation, no attempt will be made to restart nfs, and sicne nfs is not running, lockd can not be restarted either.
To workaround this, everytime we try to restart the lockmanager, also try to restart nfsd
(This used to be ctdb commit 953dbfbddad656a64e30a6aca115cb1479d11573)
even if we are not currently the natgw master.
This adds extra reliability in case we have stopped previously without removing it proper,
but does add spam messages to syslog everytime we shutdowm.
Remove these spam messages from pulluting the syslog upon normal shutdown
(This used to be ctdb commit cd84da6f247ee46bbab8318298d1cd3cfc87aba9)
Normally, the config.tdb database would not exist, so we do not need
to spam syslog with a "config.tdb does not exist" message every time we start ctdb
(This used to be ctdb commit 5792809b72e534161c5ca9ef5c9897abcb3b899c)
network connectivity outside of the cluster to still be able to
participate in a natgw group.
These nodes can not become natgw master since they lack external network
connectivity.
These nodes are configured just the same way as for any other node with
NATGW, with the following two exceptions :
* we do NOT set CTDB_NATGW_PUBLIC_IFACE at all on these nodes.
since these ndoes lack external network we should not check the interface
for link.
* we must set CTDB_NATGW_SLAVE_ONLY=yes to flag that this is a node that
can not become natgw master.
(This used to be ctdb commit ab7b00a37e55beffc074be95b55d8a5c7cb9eef2)
since that will usually be /etc/ctdb/state and storing this under /etc is just
wrong.
Add a new variable CTDB_VARDIR that defaults to /var/ctdb and store the data there instead.
(This used to be ctdb commit 516423c25afa9861d9988096efa8a4a2b12b31b1)
the clusterwide persistent data associated with the lock manager and
statd notifications.
Use persistent databases to store this data instead of a shared directory.
(This used to be ctdb commit fc0678d351187cfa4c71123f97c0f493aacd5d16)
