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Setting the recovery lock file at startup can be done more simply.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Banning is now handled by the takeover code sending banning credit
messages.
This commit makes a change in behaviour quite obvious. Takeover runs
were initiated from several locations in the code but banning was only
done from one of these locations. Now banning can be done from any
failed takeover run.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb_recovery_have_lock(), ctdb_recovery_lock(),
ctdb_recovery_unlock() are only used by recovery daemon, so move them
there.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Replace the file descriptor for the recovery lock in the CTDB context
with the cluster mutex handle, where non-NULL means locked.
Attempting to take the recovery lock is now asynchronous and no longer
blocks the recovery daemon.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
These functions were used in the transaction code. These controls did
not use server_id structure defined in samba, so samba would not use them.
Instead check if the process exists for conflicting g_lock entry.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
These controls have never been used and also they do not use the server_id
structure defined in samba. In future, similar controls can be added to
register/unregister using proper server_id structure.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
As do the functions called below it. They no longer need a CTDB
context.
create_merged_ip_list() now takes both a CTDB context and an
ipalloc_state.
Drop ipalloc_state from CTDB context. So the substitution in the
code is:
ctdb->ipalloc_state -> ipalloc_state
Tweak the test code to match.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Most of the IP allocation code does not need a CTDB context. However,
temporarily hang this off the CTDB context and make only the changes
relating to known/available IP address. This makes those logic
changes obvious without burying them in function type changes.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This variable is used for adding a prefix to log entries from various
child processes.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
These functions are only used in the ctdb daemon code.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
This function can only called from ctdb daemon.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
This is currently done before each IP takeover run, so just factor it
in.
ctdb_reload_remote_public_ips() becomes static.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Thu Nov 12 09:28:45 CET 2015 on sn-devel-104
This will help to untangle known and available public IP lists from
the CTDB context.
verify_remote_ip_allocation() needs a forward declaration.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This gets rid of the duplicate definitions from ctdb_protocol.h.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This is to avoid clash with samba structure server_id.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This makes sure that all function prototypes in ctdb_client.h are in
the same order of functions defined in ctdb_client.c.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Fri Oct 30 05:04:49 CET 2015 on sn-devel-104
This groups function prototypes for common client/server functions in
common/common.h and removes them from ctdb_private.h.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This groups function prototypes for system specific functions in
common/system.h and removes them from ctdb_private.h.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Wed Oct 28 15:59:02 CET 2015 on sn-devel-104
This was part of libctdb which has been removed.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Currently only Samba is built with CTDB and since CTDB headers are not
public any more, no other application can build with CTDB. So define
CTDB_SOCKET only during build.
In future CTDB will have public API and proper way of figuring out
CTDB_SOCKET.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The databases are repacked automatically during vacuuming when the
freelist size grows beyond configured threshold (RepackLimit).
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Centrally define all the default capabilities to make the defaults
crystal clear. Capability-related command-line options now have a
direct correspondence rather than a reverse correspondence.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
The database generation for each database is updated only during recovery.
After recovery is complete the database generation would be the same as
the global generation.
The database generation is required for parallel database recovery.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Since the banning code does not call this function anymore, it can be
made static.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The same structure is required in new controls for database transactions.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The pending calls are migration requests received from clients (over unix
domain socket) which are under processing. After a recovery is finished,
any requests which are under processing will be dropped since they do
not belong to the current generation. All the pending call requests
are resent with new generation to restart record migrations.
This is in preparation for parallel database recovery.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Just use ctdb_tcp_connection. It is the same. There are no external
users.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
When the ctdb statistics is reset, reset per database statistics to keep
it consistent with ctdb statistics.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This has not been used for a long time.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Jul 10 23:41:18 CEST 2015 on sn-devel-104
This needs to be cleared to avoid stale data when a new recovery
master is elected.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Guenther
Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat May 30 05:03:59 CEST 2015 on sn-devel-104
ctdb_get_capabilities() gets capabilities from all connected nodes
into an array. ctdb_get_node_capabilities() gets capabilities for a
particular node from array. ctdb_node_has_capabilities() returns true
if given node has all of the given capabilities.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is like CTDB_CONTROL_GET_NODEMAP but it loads from the nodes file
instead of the daemon.
Also new client function ctdb_ctrl_getnodesfile()
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Every time a nodemap is contructed the node IP addresses all need to
be parsed. This isn't very productive use of CPU.
Instead, parse each string once when the nodes file is loaded. This
results in much simpler code.
This code also removes the use of ctdb_address. Duplicating the port
is pointless without an abstraction layer around ctdb_address. If
CTDB gets an incompatible transport in the future then add an
abstraction layer.
Note that the infiniband code is not updated. Compilation of the
infiniband code is already broken. Fixing it will be a separate,
properly tested effort.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
Having it require a CTDB context stops ctdb_parse_address() from being
used in more generic code. Just use the existing talloc context for
memory allocations.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Have it just silently take or fail to take the lock, except on an
unexpected failure (where it should log an error).
This means that when it is called we need to keep the old behaviour
and explicitly release the lock. In do_recovery() the lock is
released and a message is printed before attempting to take the lock.
In the daemon sanity check the lock must be released in the error path
if it is actually taken.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Unlock the recovery lock file. This way knowledge of the file
descriptor isn't sprinkled throughout the code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
