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- use -n to specify node number in ctdb utility
- change 'ctdb status' to 'ctdb statistics'
- added 'ctdb status' which shows status
- added netmask to public IPs, so you don't try a takeover on a
foreign network
- cleaned up tools/ctdb_control.c a lot
- generate usage message at runtime
(This used to be ctdb commit 28de71c03ace7d32a9fd9882fabbd5d668b97656)
keepalive traffic for x seconds it is deemed dead
this triggers a recovery after a while if a ctdbd has been STOPPED
but it doesnt recover automatically when the node reappears
(This used to be ctdb commit d6324afe0d13b5e21d06e347caca433c6b36a32a)
change ctdb_control so it takes a timeval pointer as argument.
this is the timeout. if the node has not responded within hte timeout
ctdb_control will return an error instead of hanging.
if the timeval pointer is NULL then the call will block indefinitely if
there is no response.
this is used for now in the createdb control but all the helpers
ctdb_ctrl_* should probably be updated to take a timeout parameter as
well.
(This used to be ctdb commit 1fe64b04869b17dbf123851b0fe09df8d28a6211)
for the time being
remove all the [de]marshalling and just pass a structure around instead
(This used to be ctdb commit b1169555ab7015976c0135ff51121cc238f5887c)
this will be the core of the non-blocking lock idea for ctdb, it will be used
in place of ctdb_ltdb_fetch(), but will also get a lock. It re-starts a request
if it needs to block
(This used to be ctdb commit afa479026cf6293e6a878c8a329cdac035284672)
The problem we have is this:
- we want the client smbd processes to be able to 'shortcut' access
to the ltdb, by directly accessing the ltdb, and if the header of
the record shows we are the dmaster then process immediately, with
no overhead of talking across the unix domain socket
- a client doing a shortcut will use tdb_chainlock() to lock the
record while processing
- we want the main ctdb daemon to be able to set locks on the
record, and when those locks collide with a 'shortcut' fcntl lock,
we want the ctdb daemon to keep processing other operations
- we don't want to have to send a message from a smbd client to the
ctdbd each time it releases a lock
The solution is shown in this example. Note that the expensive fork()
and blocking lock is only paid in case of contention, so in the median
case I think this is zero cost.
(This used to be ctdb commit a3248c3e2b740cd2403acffd3c1f6a33dca0ea03)
right now this test only does one fetch lock but this will be enhanced as more code is added to ctdb to handle fetch_lock and store_unlock
(This used to be ctdb commit 996f117d9181dee22aea979ce04333035f5522c7)
create a small test application that connects to the ctdb daemon at /tmp/ctdb.socket.127.0.0.1 and do some commands to the daemon.
currently this test tool only opens the socket and registers its pid with the daemon
(the daemon needs to know the pid so that it can forward messages to the correct client)
the test will be extended with additional ctdb commands
(This used to be ctdb commit 801f6127cdd50c5b2d0e64dd8db08500af9dadc9)
- split client specific routines out of ctdb_daemon.c
- use ctdb_queue code in message send from client to daemon
- use clearer names in client/daemon functions
- use talloc autofree context to avoid global for unlink of socket on
exit
- start on API change for message handler, to allow ctdb messaging to
handle daemon mode with multiple clients
(This used to be ctdb commit 53555db45f3583ae4a32cc3aa9e07fb8ef2a77e3)
Adjusted "make distclean" NOT to remove the lib folder (again).
Removed again config.h.in autogenerated file from bzr.
(This used to be ctdb commit 3c264205157c8c2af03bca0051a1fe715c8470e5)
- split up ctdb layer code into 3 modules
- added a simple test suite
- added packet structures for ctdb_call
- switched to an array for ctdb_node to make vnn lookup easy and fast
(This used to be ctdb commit 8a17460a816a5970f2df8244a06aec55d814f186)
