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v0.1
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43 Commits
Author SHA1 Message Date
Alexander Kukushkin 60a360a4da Reset _machines_cache before doing next load attempt 2015-08-26 15:17:24 +02:00
Alexander Kukushkin befd33555d Refactor helpers/etcd.py 
Work with etcd cluster via high-level python-etcd module.
Plus change all unit tests accordingly.
 2015-08-24 16:58:08 +02:00
Alexander Kukushkin a1f11fe2fe Remove unneeded class CurrentLeaderError 2015-07-08 08:53:08 +02:00
Alexander Kukushkin 7445590546 Keep node name in AbstractDCS class 
It eliminates need to pass this name into most of the methods
 2015-07-07 12:26:52 +02:00
Alexander Kukushkin cc71906009 Inherit Etcd from abstract class 2015-07-02 15:15:07 +02:00
Alexander Kukushkin 6079c8359f refactoring: preparing to support ZooKeeper 
move some common classes info separate file in preparation to support distributed configuration store other then Etcd
 2015-07-02 12:06:07 +02:00
Alexander Kukushkin a02f9d497f BUGFIX: it can be that /members request to etcd returns somesing strange with status_code 200 2015-06-24 16:41:37 +02:00
Alexander Kukushkin f7be52f63a real_ttl method will return -1 when expiration is not defined 2015-06-23 17:15:37 +02:00
Alexander Kukushkin b7c73fdba8 Rename hostname to name in a Member 2015-06-23 14:07:00 +02:00
Alexander Kukushkin 744026b4bb Do not update member TTL when it is far from being expired 2015-06-23 14:02:32 +02:00
Alexander Kukushkin 44e06b4cff Add expiration field into Member 2015-06-10 14:22:11 +02:00
Alexander Kukushkin 971bc3b6e8 Increase verbosity of failed PUT and DELETE requests. Hope will help to debug some etcd related issues 2015-06-10 11:56:16 +02:00
Alexander Kukushkin a64dad267e Bugfix: target field of SRV object should be casted to string 2015-06-09 15:46:34 +02:00
Alexander Kukushkin 57914821d0 Randomize list of etcd cluster members 2015-06-09 12:30:58 +02:00
Alexander Kukushkin a2988361c5 Retry with host from config when it failed to resolve SRV 2015-06-09 12:30:16 +02:00
Alexander Kukushkin da4f9e8445 Make logging of http requests more verbose 2015-06-09 10:25:33 +02:00
Alexander Kukushkin c79fba7656 Support work with etcd as a cluster 
In case if one member of a cluster is not available it will retry with
another one and fetch the new cluster configuration. Default timeout for
all requests to etcd is 5 seconds.
Initial cluster configuration can be resolved through:
1) /v2/members call on one of the cluster members on a client port
2) when it is possible to resolve hostname into multiple ip's  it will
iterate through list and try to perform action from 1)
3) If there is discovery_srv defined in etcd section of config file it
will resolve peer addresses of all cluster members and will fetch
cluster configuration with using peer protocol by doing /members call on
a peer port
 2015-06-09 09:51:53 +02:00
Alexander Kukushkin fca987deda set value of api_url from application_name parameter of conn_url. Reset parameters of conn_url 2015-06-02 09:45:37 +02:00
Alexander Kukushkin f9ce29d49f rename address to conn_url in a Member obj 
and introduce new field: api_url
 2015-06-02 08:52:34 +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 faf295dcd0 Add initialize key into Cluster 2015-05-24 19:26:35 +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 62d17d68de Use "member_ttl" with default value=3600 for members 2015-05-22 12:00:07 +02:00
Alexander Kukushkin bb884bac00 Move is_unlocked method from Ha into Cluster class 2015-05-22 11:45:09 +02:00
Alexander Kukushkin 3533b790cb Update list of success return codes for PUT and DELETE 2015-05-20 12:03:12 +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 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 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
Christopher Winslett 557bad37cd ensure a stale Postgres does not become leader 2015-05-12 18:11:12 -07:00
Christopher Winslett a1bc07db33 use TTLs with member listing to keep a current list of cluster members 2015-05-12 16:33:32 -07:00
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 588c951a86 Return True after success call of update_leader and check return code 2015-05-11 08:48:51 +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
Christopher Grim b979c12c9d Use timestamped logs 2015-04-03 17:27:47 -04:00
Anthony Scalisi f167bbaddc python tweaks 2015-03-26 12:35:20 -07:00
Christopher Winslett 0d75152d54 make healthiest node work 2015-03-16 09:47:52 -07:00
Christopher Winslett 3749883328 first commit 2015-03-15 23:16:48 -07:00