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Commit Graph

100366 Commits

Author SHA1 Message Date
Amitay Isaacs
c77d3bb183 ctdb-common: Add packet read abstraction
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
facd3c864e ctdb-packaging: Package public library and header for tevent-unix-util
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
606b909310 ctdb-build: Placeholder for public headers from lib/util
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
670db6ac1d lib/util: Create a new library for tevent_unix.c
This is required for ctdb.  This avoids adding dependency on wstatus
and ntstatus to ctdb build.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
9c16fe43fc ctdb-build: Set PKGCONFIGDIR for public libraries in standalone build
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
100917b169 ctdb-packaging: Install header files in ctdb subdirectory
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
b25c1135a7 ctdb-daemon: Use reqid abstraction
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
9fd4d07ca6 ctdb-common: Add request id abstraction
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
a7ea6b094e ctdb-include: Remove unused definition
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
7c6115e11b ctdb-daemon: whitespace fix
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
9d75bf3a9f ctdb-daemon: formatting fix
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
62f1e2579a ctdb-daemon: Replace ctdb_message with srvid abstraction
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
6272ef0d09 ctdb-common: Add srvid abstraction
Attempt to make common code independent and free from ctdb_context.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
e5592f9fc0 ctdb-common: Add db_hash abstraction
A hash table implemented using in-memory tdb backend.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
acf5ebfa90 ctdb-daemon: whitespace fix
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
6672deea13 ctdb-daemon: formatting fix
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
ba56d852cb ctdb-daemon: Remove ctdb from traverse_callback
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
3f287ec479 ctdb-build: Do not split ctdb-system subsystem
The functions defined in common/system_*.c depend on the functions
defined in common/system_common.c.  So keep them together.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
90b633ea79 ctdb-build: Do not mark ctdb private headers public
These headers are used by the server code and should not be marked public.
Samba builds against the in-tree version of the headers and should not
be built with externally installed CTDB.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:28 +02:00
Amitay Isaacs
42f7722151 ctdb-daemon: Remove freeze requirement for updating vnnmap
In the parallel database recovery model, all the database will not remain
frozen at the same time.  So relax the condition to check if recovery
is active.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
3cbd0409f3 ctdb-daemon: Add a check for database generation consistency
Before setting recovery mode to normal, confirm that all the databases are
recovered by matching the database generation with the global generation.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
0ff90f4fac ctdb-daemon: Check packet generation against database generation
CTDB verifies the generation in the packet header matches that of the
current generation.  However, that check now needs to be done where
database context is available.  So add in the check in handlers for
database requests (CTDB_REQ_CALL, CTDB_REQ_DMASTER, CTDB_REPLY_DMASTER
and CTDB_REPLY_CALL).

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
d701072c3e ctdb-call: Delete old defer queue if recovery occurs
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
3d11efe3c6 ctdb-daemon: Use database generation in packet headers for database requests
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
1df2594386 ctdb-daemon: Introduce per database generation
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>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
b81d4ccc77 ctdb-freeze: Use individual database freeze in blocking freeze
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
5d9dd4d400 ctdb-freeze: Ensure all databases get frozen during freeze
It's possible that the databases can get attached after initial freeze.
This typically happens during startup as CTDB will only attach persistent
databases and go in to startup freeze.  During recovery, the recovery
master will attach all the missing databases and then send freeze
controls.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
8a5039d963 ctdb-freeze: Make function ctdb_start_freeze static
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>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
b4357a79d9 ctdb-banning: Do not freeze databases on ban in the daemon
Once the node is marked as banned, the recovery daemon on that node will
start freezing the databases anyway.  This check happens every second
in recovery daemon, so the delay in freezing the databases on ban would
be a second.

The main reason for freezing databases is to prevent any database access
from samba clients.  However, banning code also drops the public IPs
and thus disconnecting the clients.  In addition, the generation gets
set to INVALID_GENERATION, thus database record migration requests on
that node will not be processed.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
fafd35b68f ctdb-freeze: Fix a log message
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
d14ff2d87e ctdb-freeze: Use database specific information in wipe database
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
858056263a ctdb-freeze: Use single database transactions for global transactions
This cascades the global transaction controls to individual database
transaction operations.  This ensures that the individual database state
is correctly set when processing global transaction controls.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
3d325e7fa1 ctdb-daemon: Add controls for transactions on a single database
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
4f155e77a8 ctdb-daemon: Rename ctdb_control_wipe_database to ctdb_control_transdb
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>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
9f779f130f ctdb-freeze: simplify code with TALLOC_FREE
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
979f1c5ea1 ctdb-freeze: Improve log message to indicate subsequent freeze operation
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
66c7bcc777 ctdb-daemon: Use database specific mark/unmark routines
Instead of marking all the databases with priority, mark only the database
which is currently being processed.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
e0fa182d93 ctdb-daemon: Use database specific freeze check routine
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
e170bd4f1b ctdb-locking: Add mark/unmark functions for a single database
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
d139f87718 ctdb-freeze: Use single database freeze/thaw code for existing controls
This changes the locking behaviour when the databases are frozen.
Instead of a single lock helper locking all databases with a priority,
a lock helper is launched for every database.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:27 +02:00
Amitay Isaacs
fd7ceaf3ac ctdb-freeze: Move destructor closer to where it is used
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
5447864e5d ctdb-daemon: Add controls to freeze/thaw a single database
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
7afabb1285 ctdb-daemon: Avoid the use of ctdb->freeze_handle variable
These variables are used for state information related to freezing
databases.  Instead use the API functions to check if the databases
are frozen.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
8c58c7392f ctdb-daemon: Avoid the use of ctdb->freeze_mode variable
Use ctdb->freeze_mode only in ctdb_freeze.c and use the functions to
check if databases are frozen everywhere else.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
056c44fda3 ctdb-freeze: Refactor code to check if databases are frozen
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
6a212d13d0 ctdb-call: Convert pending calls list to per database list
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>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
2116c55b08 ctdb-freeze: Use ctdb_db_iterator to commit transaction on databases
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
bc9a68592e ctdb-freeze: Use ctdb_db_iterator to start transaction on databases
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
457618888a ctdb-freeze: Use ctdb_db_iterator to cancel transaction on databases
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00
Amitay Isaacs
74f7eebc79 ctdb-freeze: Use ctdb_db_prio_iterator to cancel transaction on databases
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2015-10-07 14:53:26 +02:00