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Author SHA1 Message Date
Alexander Kukushkin 3e8855799f Add requirements.txt 2015-05-19 09:14:13 +02:00
Alexander Kukushkin f7b6c8df40 Merge branch 'master' of github.com:CyberDem0n/governor 
Conflicts:
	helpers/postgresql.py
 2015-05-18 15:58:38 +02:00
Alexander Kukushkin e9ffcf9efe Small refactoring of initdb call 2015-05-18 15:57:24 +02:00
Alexander Kukushkin 520de12232 Remove debug print 2015-05-18 14:39:14 +02:00
Alexander Kukushkin a9b50b4e2e Merge branch 'master' of github.com:CyberDem0n/governor 2015-05-18 14:34:17 +02:00
Alexander Kukushkin ce936ceee2 Merge branch 'master' of github.com:compose/governor 
Conflicts:
	governor.py
	helpers/ha.py
	helpers/postgresql.py
 2015-05-18 14:33:27 +02:00
Alexander Kukushkin 422512880f last_leader_operation is the propery of Cluster object and the value is set in get_cluster method 2015-05-18 13:43:14 +02:00
Alexander Kukushkin b24fb0488c last_leader_operation is the propery of Cluster object and the value is set in get_cluster method 2015-05-18 13:33:27 +02:00
Alexander Kukushkin d221d1de1c listen_address can have more then one value separated by comma. We will use the first one to connect 2015-05-18 10:53:27 +02:00
Alexander Kukushkin 348100752b Open connection to self via listen address 2015-05-15 16:18:31 +02:00
Alexander Kukushkin af9ebfa3b9 Use connect_address instead of listen when building connection_string 2015-05-15 12:20:24 +02:00
Alexander Kukushkin 75ff91d017 rename connection_address to connect_address 2015-05-15 12:13:05 +02:00
Alexander Kukushkin 08865512f8 Differentiate between connection address and listen address 
For example you can listen on 0.0.0.0 but provide service on some
didicated ip. This should cover all possible use-cases when you are
running behind firewall, load balancer or inside for example docker.
 2015-05-15 12:06:04 +02:00
Alexander Kukushkin 274bc14bfb Do not check maximum_lag_on_failover if it is not defined in config file 2015-05-15 11:38:50 +02:00
Alexander Kukushkin 8e5beb5883 Small optimization 2015-05-15 11:25:26 +02:00
Alexander Kukushkin 9487aec842 Bugfix: get_client_path might get into infinite loop when response code is not 200 2015-05-15 11:23:02 +02:00
Alexander Kukushkin 4e8a0873a7 Handle sigchld, so we can run governor and postgres inside docker safely 2015-05-13 18:05:42 +02:00
Alexander Kukushkin e6e19359df Bugfix, write state_handler.name into leader key 2015-05-13 18:04:27 +02:00
Alexander Kukushkin 0c040b8ce2 Merge branch 'master' of github.com:compose/governor 
Conflicts:
	governor.py
	helpers/etcd.py
	helpers/ha.py
	helpers/postgresql.py
 2015-05-13 18:01:01 +02:00
Alexander Kukushkin 40a4192504 Remove member and leader (is I was the master) keys from etcd on stop of governor 2015-05-13 17:12:17 +02:00
Alexander Kukushkin d25ad17c32 Add support of python3 2015-05-13 14:53:23 +02:00
Alexander Kukushkin 8b38dbd2b5 Put governor code into class and implement sigterm processing handler 2015-05-12 13:48:06 +02:00
Alexander Kukushkin 281b0b8455 Bugfix in has_lock: sometimes leader can be undefined 2015-05-12 11:07:52 +02:00
Alexander Kukushkin 9dcbc75fd2 Bugfix. It wasn't possible to start the old cluster if all its members were shutdown. 
Basically this is rollback to the original decision tree with the small exception:
1 - If leader is defined and it's not me - then slave would be started immidiately
with the correct recovery conf.
2 - If leader is defined in and it's my host, then it will start instance in
readonly (but without primary_conninfo in recovery.conf)
3 - And the third case - if the leader is not defined - it also will start
instance in readonly, without primary_conninfo.
After performing 2 or 3 it will perform usual decision tree.
 2015-05-12 10:19:45 +02:00
Alexander Kukushkin be7677a1b8 Bugfix, hostname and address are not keys of dict but properties of Member object 2015-05-12 09:08:45 +02:00
Alexander Kukushkin e2faf641d5 Start slave with the correct recovery.conf on governor start 
Also governor is able to pick up already running master and slave
instances without restarting them.
In case is you have a lock and postgres is not running behaviour remains
the same: it will start master in read only mode and then promote if it
still has the lock.
 2015-05-11 16:50:21 +02:00
Alexander Kukushkin eb1721f65f Minimize amount of requests to etcd 2015-05-11 15:15:08 +02:00
Alexander Kukushkin 6d17d39776 Backport from compose/governor: compare xlog positions based on bytes since 0/000000 based on feedback 2015-05-11 10:06:18 +02:00
Alexander Kukushkin 2e3eb333cb Shutdown fast 2015-05-11 09:48:59 +02:00
Alexander Kukushkin 0b288a7f3e Track list of already existing physical replication slots 
Drop replication slot when it was removed from etcd.
Execute pg_create_physical_replication_slot only when something new appeared in etcd.
 2015-05-11 09:48:15 +02:00
Alexander Kukushkin 8cfbdcfcd4 Track list of already existing physical replication slots 
Drop replication slot when it was removed from etcd.
Execute pg_create_physical_replication_slot only when something new appeared in etcd.
 2015-05-11 09:44:57 +02:00
Alexander Kukushkin 588c951a86 Return True after success call of update_leader and check return code 2015-05-11 08:48:51 +02:00
Alexander Kukushkin 3a6afe5a9b Set environment variable PGPASSFILE via os.environ before running pg_basebackup and unset it afterwards 2015-05-08 16:32:57 +02:00
Alexander Kukushkin 72010f68cc Bugfix: two calls has_lock and update_lock are not atomic 
Having a lock a few moments ago, doesn't mean that you will be able to
update it.
 2015-05-08 16:21:09 +02:00
Alexander Kukushkin 810808a68a Format code according to pep8. 
replace get_client_path("/members?recursive=true") with members()
replace do-plpgsq block by simple sql
 2015-05-08 12:44:28 +02:00
Alexander Kukushkin 61f0cb2fb4 dempote and follow_the_leader have the same functionality 
Now methods supporting the case when leader is not defined. There would
be no primary_conninfo in recovery.conf. I like it more comparing to
postgres://169.0.0.1:5432
 2015-05-08 12:28:00 +02:00
Alexander Kukushkin 40b20ce5d7 Start postmaster and run initdb with pg_ctl 
It will wait utill postgres started up and helps to get rid from magic time.sleep(5) in start method.
 2015-05-06 18:26:28 +02:00
Alexander Kukushkin 2fd1614144 query method now allow to execute sql with parameters 2015-05-06 17:52:39 +02:00
Alexander Kukushkin 1d5f3b1fff Do not write primary_conninfo into recovery.conf during start 2015-05-06 16:21:49 +02:00
Alexander Kukushkin 1545cc834d Try to replace % formatting with .format() 2015-05-06 14:57:01 +02:00
Alexander Kukushkin 83ff6986d5 Format code according to pep8 2015-05-06 14:49:07 +02:00
Alexander Kukushkin a6d5732da3 Inerit HealthiestMemberError and CurrentLeaderError from EtcdError 2015-05-06 14:45:49 +02:00
Alexander Kukushkin c75bb2b297 Format code according to pep8 2015-05-06 14:39:15 +02:00
Alexander Kukushkin 0c776f5d86 Small bugfixes 2015-05-06 14:11:37 +02:00
Alexander Kukushkin e108fec30a Try to replace % formatting with .format() 2015-05-06 13:48:16 +02:00
Alexander Kukushkin 6f3476a924 Try to replace % formatting with .format() 2015-05-06 13:09:11 +02:00
Alexander Kukushkin 5fc770a370 Got rid of unneeded calls of os.system 2015-05-06 12:38:18 +02:00
Alexander Kukushkin 4e786c1519 Format code according to pep8 2015-05-06 12:12:37 +02:00