8cef8b9472
Compile MariaDBMonitor unit tests only if flag is set
2019-01-15 15:44:21 +02:00
b47d4a4105
Use max_statement_time
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Used only with supporting server versions. Using the time limit ensures that
the server interrupts the query at the same point Connector-C would cut the
connection. This prevents lingering queries.
Also, cleans up some associated error messages.
2018-11-23 15:15:44 +02:00
0a5a3309e0
Add missing quotes when printing server names
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Some of the log messages didn't have the quotes.
2018-11-23 14:02:09 +02:00
fb52e565fe
Store capabilities of monitored server
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Checking the version number in various places in the code gets confusing.
It's better to check the version in one place and record the relevant data.
2018-11-21 17:36:52 +02:00
01628dd0de
Cleanup server version updating
2018-11-21 17:36:52 +02:00
5d4775cac1
MXS-2168 Update test_cycle_find
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The test now uses both server id:s and hostname:port combinations.
2018-11-21 10:40:21 +02:00
90da3a4d90
Remove MXS_MONITORED_SERVER mapping from MariaDBMon
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The mapping was rarely used.
2018-11-21 10:30:11 +02:00
1a046bd453
MXS-2168 Add 'assume_unique_hostnames'-setting to MariaDBMonitor
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Adds the setting and takes it into use during replication graph creation
and the most important checks.
2018-11-21 10:30:11 +02:00
bba0bc0f31
MXS-2158 Relax requirements for manual rejoin
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The operation is now allowed even if the rejoining server has empty gtid:s.
Auto-rejoin keeps the safeties on.
2018-11-16 13:03:30 +02:00
6a1cfddb43
MXS-2158 Clean up gtid updating during rejoin
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Error messages from update_gtids() are now printed. can_replicate_from()
no longer updates gtid:s.
2018-11-16 12:56:24 +02:00
a377a9fc5a
Add gtid event in reset-replication
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Adds a "FLUSH TABLES" command at the end so that the new master has a non-empty
gtid_binlog_pos after the operation.
2018-11-14 11:01:48 +02:00
14e38e4e08
MXS-2158 Return true if update_gtids() succeeds, even if no data is returned
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Previously, if the server had no gtid:s, the method would fail leading to
a confusing error message. This could even totally stop the monitor from working
if a recent server version (10.X) did not have any gtid events.
2018-11-14 10:56:42 +02:00
ecc7442358
Detect manual commands faster
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Previous, MariaDBMonitor would wait until the next monitor interval before detecting
a new manual command. The commands are now checked every 100 ms.
2018-11-08 19:12:00 +02:00
fb3ccc94d6
MXS-1944 Cleanup function parameters
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The naming and ordering is now a bit more consistent between promote() and demote().
2018-11-07 12:55:59 +02:00
e4e2235297
MXS-1944 Use time limited methods in rejoin
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Uses switchover time limit, since the typical rejoin of a standalone server
is somewhat similar to a switchover.
2018-11-07 12:55:59 +02:00
184e187732
Different cluster operations use different parameter types
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Only the parameters used by all operations are in the common class.
2018-11-07 12:55:59 +02:00
a4ce4e4613
MariaDBServer no longer uses ClusterOperation
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The functions in the server class now only use the general parameters object.
2018-11-07 12:55:59 +02:00
8877e7180b
Continue separation of ClusterOperation elements
2018-11-07 12:55:59 +02:00
90e6ff078a
Divide ClusterOperation to two types
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The main class was getting unwieldly and too general. Dividing the fields
helps adding support for other operation types.
This commit leaves most data duplicated, later commits clean up the affected code.
2018-11-07 12:55:59 +02:00
11a756a028
Detect undefined references at link time
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Instruct the linker to make sure all symbols are resolved at link time.
2018-11-06 21:34:28 +02:00
c5a54d2fe9
Disallow switchover promotion of a server low on disk space
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This protects the user and also prevents a neverending series of
automatic switchovers in the case when all servers are low.
2018-11-06 11:44:50 +02:00
906d8cee5b
Format all files
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Formatted all files with uncrustify.
2018-10-31 09:46:02 +02:00
36b666898c
Fix connection merging
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The conditional was inverted.
2018-10-16 16:09:38 +03:00
2d61b78439
Fix low disk space maintenance
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The setting didn't work because the code updated a status flag which
would be overwritten before being read. Also, promotion code now checks
that the server is not in maintenance.
2018-10-16 16:09:38 +03:00
0c203fa02d
Don't redirect duplicate connections
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The redirection method checks if a slave connection to the redirection
target already exists. If so, the connection is not modified. Also, failover
better detects duplicate connections during promotion.
2018-10-16 16:09:38 +03:00
e930270b9c
Use copy when checking removed connections
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The function modifies the reference parameter contents indirectly.
2018-10-16 16:09:38 +03:00
f554ef770b
Allow switchover for arbitrary topologies
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The demoted server no longer needs to be the master.
2018-10-16 16:09:38 +03:00
0cf8ea43f7
Redirect slaves of promotion target
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This affects situations where the promoted server is a relay or multimaster
group member.
2018-10-16 16:09:38 +03:00
2f76c48b06
Clarify server version error message
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The required server version is now printed.
2018-10-11 11:41:46 +03:00
c0945020ee
Only running slave connections are checked for non-gtid replication
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This prevents auto-failover from being disabled due to recently generated or
non-functional slave connections.
2018-10-11 11:41:46 +03:00
f2067fcf7c
Monitor cleanup
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Removes unused code, compacts lines, moves code.
No functional changes.
2018-10-11 11:39:05 +03:00
d0444ff054
SlaveStatus::to_short_string() uses member field
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The owner server name is now stored in a field.
2018-10-10 17:26:48 +03:00
2f1512a22d
Cleanup slave connection removal during promotion/demotion
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The removing and slave status updating is now separated to a function.
As the MariaDBServer object now contains the updated slave connections,
keeping track of removed connections is no longer required.
2018-10-09 14:29:49 +03:00
c10fab977d
Cleanup slave connection copy & merge
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The two cases are now separated. In switchover, the promotion and
demotion targets can swap connections between each other without worry.
In failover, the two connection lists must be merged semi-intelligently.
The slave connections of the two servers are now saved to the operation
descriptor object at the start of the operation. This allows slave status
updating during the operation.
2018-10-09 14:29:49 +03:00
4d6f961695
Cleanup mariadbserver.hh
2018-10-09 14:29:49 +03:00
5cc4eb08ee
Clean up mariadbmon.hh
2018-10-09 14:29:49 +03:00
68d65682b5
Reorganize MariaDBServer code
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The server-class keeps growing, so the additional classes are moved out of
the main class file.
2018-10-09 14:29:49 +03:00
75ea1b6ea1
Fix formatting of new(std::nothrow)
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The code previously formatted everything as `new( std::nothrow)`.
2018-10-04 21:50:44 +03:00
a398da58a4
Add sleep to execute_cmd_time_limit
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If the query fails instantly, the retries end up busy-looping. Now
each try is at least one second.
2018-10-04 20:19:57 +03:00
707506feae
A slave must have running slaves to be a relay master
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This prevents some questionable status assignments, but also means that
the Relay Master status can be lost if a slave goes down. This is
contrary to Master status which is not lost if slaves go down. Fixes
mxs1961_standalone_rejoin.
2018-10-04 20:16:29 +03:00
374ae2fc9b
Only redirect usable slaves
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Prevents pointless retrying/waiting when redirecting slaves.
2018-10-04 20:11:12 +03:00
80c731f02a
Fix verify_master_failure
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The log message had changed, changed test to match. Also, the remaining
delay is now printed.
2018-10-04 13:38:10 +03:00
86ae0c3e4d
MXS-1845 Remove unneeded code & cleanup
2018-10-04 13:38:10 +03:00
a1b3a005dd
MXS-1845 Relax cluster operation support requirements
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Support for more complicated topologies is quite close to completion and
in any case the function was too aggressive.
2018-10-04 13:09:28 +03:00
30eb21914f
MXS-1845 Switchover cleanup
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Several small changes:
Binlog is flushed at the end of old master demotion.
Only new master is required to catch up to old master.
Use the same replication check method as failover.
2018-10-04 11:45:33 +03:00
49e85d9a28
MXS-1845 Add demotion code
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The master demotion in switchover now uses query retrying with
the switchover time limit.
2018-10-04 11:45:33 +03:00
a4747f5b03
Revert the last commit, and an additional fix to the
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"Fix code for warnings:" commit.
2018-10-03 17:22:10 +03:00
268e689dc5
Fix code for warnings: unused-but-set-variable and warn_unused_result.
2018-10-03 16:33:24 +03:00
d14b9bfe43
MXS-1845 Cluster stabilization rewrite
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No longer writes events to the master, as this creates problems if the
promoted server was not the overall master. Instead, the slave status
output is inspected.
2018-10-02 11:09:16 +03:00
1ca5d02abb
MXS-1845 Add redirection code
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Should work with multimaster replication.
2018-10-02 11:09:16 +03:00
