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ctdb_client.h is the existing internal client interface (which was mainly
in ctdb.h), and ctdb_protocol.h is the information needed for the wire
protocol only.
ctdb.h will be the new, shiny, libctdb API.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 4bba6b8cd47b352f98d41f9f06258d5ac3c9adef)
It is unlikely we will need something this verbose for normal troubleshooting.
This allows us to keep a significantly longer time interval of log messages
in the 500k slots available in the ringbuffer.
(This used to be ctdb commit cc99c05c0c6484ad574039a454e6133852cb41fa)
(for struct sockaddr to be defined)
Thanks to William Jojo <w.jojo@hvcc.edu> for reporting.
Michael
(This used to be ctdb commit 7558bca1e99884c02747adb7cbea799d04ee24d5)
make ctdb uptime print how long the recovery took
in the recovery daemon when we check that the public ip address
allocation on the local node is correct (we have the ips we should have
and we dont have any we shouldnt have) use ctdb uptime and check the
recovery start/stop times and make sure we dont check for ip allocation
inconsistencies during a recovery where the ip address allocation is in flux.
(This used to be ctdb commit f86551580349b7f662f9a07e4eb0c1189e38e429)
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)
