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Author SHA1 Message Date
Oleksii Kliukin 9ae5998a25 Merge pull request #20 from zalando/features/refactoring 
Try to avoid of double promote
 2015-06-01 14:43:20 +02:00
Alexander Kukushkin ccdff5ea99 Merge branch 'master' of github.com:CyberDem0n/governor into features/refactoring 
Conflicts:
	helpers/postgresql.py
	tests/test_postgresql.py
 2015-06-01 14:14:53 +02:00
Alexander Kukushkin adcc7ac256 Try to avoid "double" promotion. 
Also check presence of trigger_file on master after promotion when
pg_is_in_recovery() = false and if it is there - remove it.
Plus check presence of trigger_file on a new slave (after running
pg_basebackup) and if it is there - also remove it.
 2015-06-01 13:48:44 +02:00
Alexander Kukushkin 8c4e547d7a Handle KeyboardInterrupt in the main loop 2015-06-01 12:02:46 +02:00
Alexander Kukushkin 939254021e Code cleanup: do not modify os.environ but pass copy of it to subprocess.call 2015-06-01 11:03:06 +02:00
Alexander Kukushkin f8c3582715 Refactor api: 
Call is_running only when it's not possible to execute query against
governed postgres.
 2015-06-01 10:48:16 +02:00
Alexander Kukushkin b85262637d Bugfix: do not create replication slot for master 2015-06-01 09:20:24 +02:00
Feike Steenbergen f8d4a22921 Merge pull request #19 from zalando/features/refactoring 
Wrap time.sleep into wrapper function
 2015-05-28 16:07:41 +02:00
Alexander Kukushkin 5fcb19b817 Merge branch 'sleep-sigchld' of github.com:CyberDem0n/governor into features/refactoring 
Conflicts:
	tests/test_governor.py
 2015-05-28 15:55:03 +02:00
Alexander Kukushkin aa486194ae Wrap time.sleep into wrapper function 
In case if it was interrupted by SIGCHLD but scheduled awake time is not
reached it will continue sleeping. For all other signals behaviuor is
not changed.
 2015-05-28 15:47:51 +02:00
Alexander Kukushkin 9cd7000d7f Merge branch 'master' of github.com:CyberDem0n/governor 2015-05-28 13:04:49 +02:00
Alexander Kukushkin cd5e589620 Revert previous commit (restore sigchld_handler) 2015-05-28 13:04:21 +02:00
Feike Steenbergen 119c56e5d3 Merge pull request #18 from CyberDem0n/master 
Set handler of SIGCHLD to SIG_IGN
 2015-05-28 12:43:05 +02:00
Alexander Kukushkin f76f77e964 Ignore SIGCHLD instead of processing it. 
This way time.sleep wont be interrupted when some external process is
finished and terminated childs would be reaped automatically.
 2015-05-28 12:25:49 +02:00
Feike Steenbergen 3d11fe1fe6 Merge pull request #17 from zalando/features/refactoring 
Store api url of each governor together with connect url of postgres
 2015-05-28 09:26:09 +02:00
Alexander Kukushkin 01e3beff1c Merge pull request #2 from CyberDem0n/restapi 
Restapi
 2015-05-27 18:31:42 +02:00
Alexander Kukushkin 9971d214fe Merge branch 'restapi' of github.com:CyberDem0n/governor into features/refactoring 
Conflicts:
	governor.py
 2015-05-27 14:54:08 +02:00
Alexander Kukushkin bdc4374ae3 connect address for rest api could be different from listen address 2015-05-27 14:51:41 +02:00
Alexander Kukushkin 5a817fad0d Store in etcd endpoint of restapi 
In order to have backward compatibility connection url of restapi is
passed as application_name parameter in connection url of database.
Value in etcd will look like:
postgres://user:passwd@host:5432/postgres?application_name=http://host:8080/governor
Sure, this is a hack, but I guess it worth it.
 2015-05-27 14:46:35 +02:00
Alexander Kukushkin 77911144c7 Improve test of governor against real config files 2015-05-27 14:44:52 +02:00
Feike Steenbergen c69f9459c6 Merge pull request #16 from zalando/features/refactoring 
Replace os.system with subprocess.call
 2015-05-27 11:32:53 +02:00
Alexander Kukushkin b163a8896b Merge branch 'restapi' of github.com:CyberDem0n/governor into features/refactoring 
Conflicts:
	helpers/postgresql.py
 2015-05-27 11:20:51 +02:00
Alexander Kukushkin 56a9f52a15 Replace os.system with subprocess.call 2015-05-27 11:16:16 +02:00
Alexander Kukushkin 0cd81a1ecf Merge branch 'restapi' of github.com:CyberDem0n/governor into features/refactoring 
Conflicts:
	tests/test_postgresql.py
 2015-05-27 11:15:15 +02:00
Alexander Kukushkin 9968a66048 helpers/postgresql.py 
Replace os.system with subprocess.call
 2015-05-27 11:08:06 +02:00
Alexander Kukushkin 56daec0d6c Api: Bugfix for current_xlog_location in slaves. 2015-05-26 15:53:57 +02:00
Feike Steenbergen ea416d98d7 Api: Bugfix for current_xlog_location in slaves. 2015-05-26 15:40:32 +02:00
Alexander Kukushkin 8cc0aa90b1 Fix typos when passing connection parameters to psycopg2. 2015-05-26 10:39:16 +02:00
Oleksii Kliukin 6072a8a07b Merge pull request #15 from zalando/features/refactoring 
More accurate exceptions handling
 2015-05-26 10:36:57 +02:00
Oleksii Kliukin 7217d0b0c1 Fix typos when passing connection parameters to psycopg2. 2015-05-26 10:35:42 +02:00
Alexander Kukushkin bbf1110518 Merge branch 'restapi' of github.com:CyberDem0n/governor into features/refactoring 
Conflicts:
	governor.py
	helpers/postgresql.py
	postgres0.yml
	postgres1.yml
	tests/test_postgresql.py
 2015-05-26 09:56:35 +02:00
Feike Steenbergen 1322413863 Added some small TODO items. 2015-05-26 09:49:40 +02:00
Alexander Kukushkin 518ef68a53 Use connect_timeout=3s and statement_timeout=2s everywhere (even for local connections) 2015-05-26 09:19:20 +02:00
Alexander Kukushkin 45c4ba85b4 port for http servert must be integer 2015-05-26 09:17:58 +02:00
Alexander Kukushkin cca5bdef8f Configure listen address for restapi via a yaml file 2015-05-26 09:07:39 +02:00
Alexander Kukushkin 3e3acc3d3a Do not start listening port during test 2015-05-26 08:59:42 +02:00
Alexander Kukushkin faf295dcd0 Add initialize key into Cluster 2015-05-24 19:26:35 +02:00
Alexander Kukushkin 1096e04343 Bigfix, cursor.closed contains boolean value 2015-05-24 16:00:31 +02:00
Alexander Kukushkin db34e1f458 Write get_postgresql_status exception into log file 2015-05-24 15:57:10 +02:00
Alexander Kukushkin 755f54f266 Improve test coverage for governor.py 2015-05-24 15:42:41 +02:00
Alexander Kukushkin 8dd99170bf Refactor exceptions handling in etcd.py and ha.py 
update_leader can throw EtcdError exception
unused HealthiestMemberError exception is removed
 2015-05-24 15:40:36 +02:00
Alexander Kukushkin 188741de5a Merge branch 'master' of github.com:CyberDem0n/governor into restapi 2015-05-24 09:02:42 +02:00
Alexander Kukushkin ce267d9f1e query method will retry only in case of communication error 2015-05-24 09:01:23 +02:00
Alexander Kukushkin d202f72a42 Added simple web server which shows current state of postgres 
Server always returns json which contains some status of postgres:
* instance type: master/slave
* xlog location for master
* xlog received_location, replayed_location
This server could be used by haproxy
GET / returns 200 if there is postgres master behind governor.
GET /slave returns 200 is there is postgres slave behind governor
In all other cases it returns 503
Currently server always listening on 0.0.0.0:8080, but it should be
configurable. In the next versions this rest api could also report some
status of etcd and could be used by is_healthiest_node method
 2015-05-23 20:29:51 +02:00
Alexander Kukushkin f53c369c69 Connect timeout 5 seconds for psycopg2 
Refactored query and is_healthiest_node methods
query method wont retry more then 3 times if OperationalError raised
is_healthiest_node takes into account that one of the nodes could be
still a master
 2015-05-23 20:21:13 +02:00
Feike Steenbergen 4b19daa83d Merge pull request #14 from zalando/features/refactoring 
Demote master when it can not access etcd
 2015-05-22 13:25:41 +02:00
Alexander Kukushkin 7f9c10e33f Merge branch 'master' of github.com:CyberDem0n/governor into features/refactoring 2015-05-22 12:27:02 +02:00
Alexander Kukushkin b00846affc Merge branch 'master' of github.com:CyberDem0n/governor into features/refactoring 
Conflicts:
	helpers/postgresql.py
 2015-05-22 12:26:55 +02:00
Alexander Kukushkin 34f9b666cf Demote master when etcd is not accessible 2015-05-22 12:26:19 +02:00
Alexander Kukushkin 09163ac454 If there is no connect_address defined in yml file use address from listen as a fallback 2015-05-22 12:03:43 +02:00