fd31c9cced
MXS-1905 Set slaves with low disk space to maintenance
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Also, servers in maintenance are updated just as other servers.
2018-07-02 14:24:57 +03:00
960d08a36a
Code cleanup
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Removed unused code.
2018-06-29 10:54:34 +03:00
0afcd4b468
Fix test-program failures
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Due to recent changes, mxs::MessageQueue::init() must be called
explicitly, if a monitor is created.
2018-06-29 10:43:49 +03:00
9525d3507b
Run manual commands without stopping the monitor
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The command is saved in a function object which is read by the monitor
thread. This way, manual and automatic cluster modification commands are
ran in the same step of a monitor cycle.
This update required several modifications in related code.
2018-06-28 16:56:41 +03:00
6bf10904d7
MXS-1845 Only rebuild topology when required
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The monitor now detects when a server has changed such that a replication
graph rebuild is needed and only then rebuilds the graph and detects
cycles and master.
Also, some old code is no longer called in the monitor cycle. It will be
removed in later commits. Refactored some of the related functions.
2018-06-28 16:56:41 +03:00
cc0299aee6
Update change date of 2.3
2018-06-25 10:07:52 +03:00
8bd9e1d473
Check monitor permissions when reconnecting to server
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Previously, the permissions would only be checked at monitor start.
Now, the permissions are checked if [Auth Error] is on or server
was reconnected.
2018-06-20 17:54:46 +03:00
58207ec414
MXS-1775 Check disk space warning bit when selecting a new master for failover
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This also applies to autoselect switchover. The disk space warning has the least
priority, as the other criteria could lead to replication failures. Also, print
the reason the new master was selected over the second best candidate.
2018-06-18 17:59:19 +03:00
019d62bbb8
MXS-1886 Better auto-rejoin error description and tolerance
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Contains changes from commit 09df01752812444c6e7c409a8957d292f7de63cf
adapted to the 2.3 branch.
2018-06-18 16:35:28 +03:00
d3e9cc9a4f
MXS-1886 Auto-failover error tolerance
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Contains changes from commit 9e68d8ec3ddf1621f533067021c4b3042f695e80
adapted to the 2.3 branch.
2018-06-18 16:35:28 +03:00
2f987d0b10
MXS-1845 Only select a master if current master is no longer usable
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The purpose is to make the selected master server sticky. The master is reselected only
if the current master is no longer a valid master.
2018-06-18 11:06:58 +03:00
de37f1a5c4
Fix cycle find test
2018-06-14 10:28:10 +03:00
5324a1bdaa
MXS-1845 Assign server roles
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Assign server roles (master, slave, relay master, slave of external master)
for a graph with possibly multiple paths to a slave server.
2018-06-13 17:38:53 +03:00
3f82c25c62
MXS-1845 New algorithm for finding the master server
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Not yet used, as more is needed to replace the old code. The
algorithm is based on counting the total number of slave nodes
a server has, possibly in multiple layers and/or cycles.
2018-06-13 17:38:33 +03:00
8afa8c2c5a
MXS-1775 Add MonitorInstanceSimple class
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MonitorInstanceSimple is intended for simple monitors that
probe servers in a straightforward fashion. More complex monitors
can be derived directly from MonitorInstance.
2018-06-07 15:13:26 +03:00
2481de260f
Move monitor-dependent code in MariaDBServer to MariaDBMonitor
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Removes Monitor-dependency from the MariaDBServer-class.
2018-06-06 22:28:38 +03:00
b2a190c2b8
MXS-1775 Add switchover_on_low_disk_space parameter
2018-06-06 15:25:57 +03:00
dc47835ef6
MXS-1775 Add documentation for new monitor parameter
2018-06-06 15:25:57 +03:00
af717426d5
MXS-1775 Load server journal unconditionally
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The server journal is unconditionally loaded and need not be
done in @c pre_loop.
2018-06-06 15:25:57 +03:00
f600b3a769
MXS-1775 Check disk space in MariaDBMonitor
2018-06-06 15:25:57 +03:00
18ece193bb
MXS-1775 MariaDBMonitor::main() removed
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Now uses MonitorInstance::main() as all other monitors.
2018-06-06 15:25:57 +03:00
44b1e805a3
MXS-1775 Move MariaDBMonitor functionality to tick
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Now all is set for moving MariaDBMonitor on top of
MonitorInstance::main.
2018-06-06 15:25:57 +03:00
329a6df662
MXS-1775 Factor out post-processing
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Further adjustments for being able to move MariaDBMonitor on
top of MonitorInstance::main().
2018-06-06 15:25:57 +03:00
71194d83d3
MXS-1775 Rearrange for moving main loop to MonitorInstance
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This is another step in the process for moving the main loop
from MariaDBMonitor to MonitorInstance.
2018-06-06 15:25:57 +03:00
70fdd0fc17
Merge branch '2.2' into develop
2018-06-06 08:56:31 +03:00
f2b2951c99
Track the number of performed monitoring intervals
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Tracking how many times the monitor has performed its monitoring allows
the test framework to consistently wait for an event instead of waiting
for a hard-coded time period. The MaxCtrl `api get` command can be used to
easily extract the numeric value.
2018-06-06 08:46:46 +03:00
17c9ac95bd
MXS-1845 Add unit test for the cycle find algorithm (Tarjan SCC)
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Only a few test cases for now.
2018-06-05 16:33:51 +03:00
9a0445cd4e
MXS-1845 Save cycle members
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The saved data may be useful later on. Also includes some cleanup.
2018-06-05 16:25:04 +03:00
7cd19a12a2
MXS-1883 Remove locking during monitor loop
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Since the admin cannot modify server states any more, the locks are not
required.
2018-06-01 15:03:07 +03:00
37841183b3
Cleanup server.h
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Renamed, rearranged and clarified status bits. Removed unused macros.
2018-06-01 14:29:51 +03:00
4d7aff4ab9
MXS-1845 Find strongly connected components with multiple slave connections
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Rewrote the algorithm for clarity.
2018-06-01 14:04:50 +03:00
32c7ae2f9f
MXS-1775 Inherit MariaDBMonitor from mxs::MonitorInstance
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Start/stop now provided by MonitorInstance. The thread main
function is now virtual and overriden by MariaDBMonitor. Some
additional refactoring is necessary in order to be able to allow
MonitorInstance to handle the main loop.
2018-06-01 13:48:15 +03:00
5219245a04
MXS-1775 Reset server info in MariaDBMonitor::configure()
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That way, MariaDBMonitor no longer needs a custome start() function.
2018-06-01 13:48:15 +03:00
be3bdc7bc9
MXS-1775 Rename MariaDBMonitor::main_loop() to main()
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To make it compatible with mxs::MonitorInstance.
2018-06-01 13:48:15 +03:00
a82c5911e5
MXS-1775 Rename m_monitor_base to m_monitor
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To make it compatible with how the variable is named
in maxscale::MonitorInstance.
2018-06-01 13:48:15 +03:00
f862939dd7
MXS-1775 Make MariaDBMon non-dependent on stop() return value
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To align it with the behavour or MonitorInstance::stop()
2018-06-01 13:48:15 +03:00
62f3e89ae7
MXS-1775 Tilt MariaDbMon towards maxscale::MonitorInstance
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- m_status -> m_state
- m_keep_running -> m_shutdown
- load_config_params() -> configure()
2018-06-01 13:48:15 +03:00
b439857a84
MXS-1775 Remove destroy()
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Now the instance is deleted simply by deleting it.
2018-06-01 13:48:15 +03:00
c039821467
MXS-1883 Maintenance is now the only user-modifiable bit for a monitored server
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The request to turn maintenance off/on is a separate flag, although the actual
status is still contained in the status bitfield.
2018-05-30 10:09:15 +03:00
f8940d4a2a
Use 64bits for server status flags
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Monitor journal still uses 32bits.
2018-05-23 16:19:08 +03:00
3ec449339f
Only write to SERVER->status at the end of a monitoring loop
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This makes the code clearer and reduces race conditions, as the monitor
could be writing SERVER->status while a router is reading it. Also,
the time during which the SERVER struct is locked drops to a fraction.
2018-05-23 16:19:08 +03:00
043232990c
MXS-1859 Correct merge bug
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Version comparison was wrong.
2018-05-21 15:58:12 +03:00
4788c4947d
Merge branch 'read_only' into develop
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develop was updated before a merge was pushed, requiring a second merge.
2018-05-18 16:51:38 +03:00
709c076000
Merge branch '2.2' into develop
2018-05-18 16:31:49 +03:00
d5871e48ae
MXS-1775 Change assumption of Monitor::destroy() function
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Used to be assumed to be a static member function, now assumed
to be a regular member function.
2018-05-18 16:00:05 +03:00
fb56de641a
MXS-1859 Add options for enforcing read_only on slaves
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If the feature is enabled (default off), at the end of a monitor loop
(once server states are known), read_only is enabled on slaves servers
without it.
2018-05-18 15:29:56 +03:00
a31549221b
MXS-1845 Print all slave connections at 'show monitors'
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The format has changed.
2018-05-18 13:48:08 +03:00
45da5a08d9
MXS-1845 Cleanup monitor backend updating
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Now detects errors and prints them.
2018-05-18 13:48:08 +03:00
654b5f1958
MXS-1865 Wrong permissions on backends no longer cause monitor start to fail
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The logic was weird, as the permission checking function assumes a disconnected
server as fine. The checking is now done when starting the main loop and lacking
grants print errors but does not stop the monitor.
2018-05-16 13:55:45 +03:00
b71710e066
MXS-1865 Combine server version and type
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Binlog server is now handled better.
2018-05-16 13:55:45 +03:00
