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multiple public addresses spread across multiple interfaces on each
node.
this is a massive patch since we have previously made the assumtion that
we only have one public address per node.
get rid of the public_interface argument. the public addresses file
now explicitely lists which interface the address belongs to
(This used to be ctdb commit 462ebbc791e906a6b874c862defea43235597ca8)
nfs-state directory actually exists (by creating it)
or else the lock manager will not start
(This used to be ctdb commit f2d15d04df842538c8d8331796a3c6fbe23463f2)
the shutdown command
and return success to the caller if the _send() was successful
(This used to be ctdb commit 6bacaf8c7a96044708a6eda10cc8576adb7f5f79)
controls to register/unregister/check a server id.
a server id consists of TYPE:VNN:ID where type is specific to the
application. VNN is the node where the serverid was registered and ID
might be a node unique identifier such as a pid or similar.
Clients can register a server id for themself at the local ctdb daemon.
When a client dissappears or when the domain socket connection for the
client drops then any and all server ids registered across that domain
socket will also be automatically removed from the store.
clients can register as many server_ids as they want at the same time
but each TYPE:VNN:ID must be globally unique.
Clients have the option of explicitely unregister a server id by using
the UNREGISTER control.
Registration and unregistration can only be done by clients to the local
daemon. clients can not register their server id to a remote node.
clients can check if a server id does exist on any ctdb node in the
network by using the check control
(This used to be ctdb commit d44798feec26147c5cc05922cb2186f0ef0307be)
passing it as a parameter we set the callback function explicitely from
the caller if the ..._send() function returned a valid state pointer.
(This used to be ctdb commit aa939570662786455f63299b62c99882cff29d42)
callback function which is called upon completion (or timeout) of the
control.
modify scanning of recmaster in the monitoring_cluster code to try the
api out
(This used to be ctdb commit c37843f1d97b169afec910e7ddb4e5ac12c3015c)
struct so that if we timeout a control we can print debug info such as
what opcode failed and to which node
we dont need the *status parameter to ctdb_client_control_state
create async versions of the getrecmaster control
pass a memory context to getrecmaster
(This used to be ctdb commit 558b680c82f830fba82c283c78c2de8a0b150b75)
ctdb_call() may pass a null pointer to _recv() and this would cause a
segfault.
fortunately there appears there are no critical users for this codepath
right now so the risk was more theoretical IF clients start using this
call it coult segfault.
change ctdb_control() to become fully async so we later can make
recovery daemon do the expensive controls to nodes in parallell instead
of in sequence
(This used to be ctdb commit 379789cda6ef049f389f10136aaa1b37a4d063a9)
node is not banned it the call is for a database record. i.e a REQ/REPLY
CALL/DMASTER
if we get such a call while banned, ignore the packet and write an entry
in the logfile
(This used to be ctdb commit 79eb0863609fbb12e28ebf734101b1d3f359b330)
places.
create a new helper function to generate new generation id values that
know about the invalid id and avoids generating it.
update the ctdb status tool to know about the invalid generation id and
print the string INVALID instead
(This used to be ctdb commit 4fbcd189543cb8a92227fdcd3d158472e558ccda)
not participating in the cluster
if a client tries to attach to a database while the node is inactive,
return an error back to the client and fail the attach
(This used to be ctdb commit b26949f3c8e54f3bc60da04d7b4ac69f301068fc)
and it should thus no longer serve any database access calls until it
has been reintroduced into the cluster.
when becoming banned, reset the local generation id to 1 to prevent
any further database access calls from other nodes from being processed.
(This used to be ctdb commit b531021db43ebaa5f5d0ace28c59913d359bd8a8)
see both the old flags as well as the new flags (so we can tell which
flags changed)
send the CTDB_SRVID_RECONFIGURE messages to connected nodes only, not to
every node, connected or not, in the cluster.
in the handler inside the recovery daemon which is invoked for node flag
change messages, only do a takeover_run() and redistribute the ip addresses IF it was the
disabled or the unhealthy flags that changed. Also send out the cluster
reconfigured message in this case.
If any of the other flags changed we dont need to do the takeover_run(0
here since that will be done during recovery.
(This used to be ctdb commit 5549b2058e2c148a8ca9d419123acf3247bb8829)
from the administrator, log this as 'Received SHUTDOWN command. Stopping
CTDB daemon.' so that the administrator will know when looking at the
log 'why' the ctdb service was terminated.
Previously the only thing logged was 'shutting down' which is not
detailed enough.
(This used to be ctdb commit 5b818c1b72b6594a8d6e45e1865026e3ce33ae63)
change initial errors that cause ctdb to fail to start from printf to
DEBUG(0
add a DEBUG(0 to log that the ctdb service is starting
(This used to be ctdb commit 680b4fbb283dd68567a62a83345f11a6cc1dd0e5)
public address remain at that node until either the node becomes
unhealthy or the original/primary node for that address becomes healthy
again.
Othervise what will happen is
1, if we ban a node, the banning code immediately does a
takeover_run() and reassigns the public address to a different node in
the cluster.
2, a few seconds later (at most) the recovery daemon will detect that
the number of nodes has shrunk and will initiate a recovery.
During the recovery the public address would again be assigned to a
node, this time a different node.
(This used to be ctdb commit 30a6b7a648e22873d8ce6289a3d6dc42c4b9e3b3)
specific script /etc/ctdb/events.d/00.ctdb
get rid of CTDB_EVENTS_SCRIPT and --event-script
(This used to be ctdb commit 81ccfaf838e5772d4a58eb6a70224b7b39aba9f3)
instead for from /etc/ctdb/events so that we can get better debugging
output in the logs when something fails in the scripts
(This used to be ctdb commit 4ed96b768aea1611e8002f7095d3c4d12ccf77a3)
