Ian Barwick
951c7dbd07
repmgrd: in BDR mode, have each repmgrd monitor each node
...
This will cover both the case when an entire node including
repmgrd goes down, and when one PostgreSQL instance goes down
but repmgrd is still up (in which case only one of the repmgrds
will handle the failover).
2017-07-14 15:01:18 +09:00
Ian Barwick
e3b3fb65f0
repmgrd: restrict BDR monitoring to two node setup
...
It's not safe to have more than two nodes with this kind of
"failover", so we don't need to select alternative nodes by
priority.
2017-07-14 12:56:11 +09:00
Ian Barwick
d653888c65
Support pre-10 WAL functions
2017-07-14 10:40:11 +09:00
Ian Barwick
dfcf85a62f
repmgrd: further BDR sanity checks
2017-07-14 10:27:28 +09:00
Ian Barwick
0320f409aa
Detect BDR capability via presence of extension
2017-07-13 14:13:46 +09:00
Ian Barwick
7eadbf6b17
Various improvements to "repmgr bdr register/unregister"
2017-07-12 22:38:03 +09:00
Ian Barwick
0a1addfdc0
When registering a BDR node, sync repmgr.nodes from another node
...
If a BDR node is added via bdr_group_join(), repmgr.nodes will
start off empty, so we'll need to sync it ourselves before adding
it to the repmgr replication set.
2017-07-12 10:11:25 +09:00
Ian Barwick
1cccb1dd5a
Add "repmgr bdr unregister"
2017-07-12 10:11:21 +09:00
Ian Barwick
71a0871232
Add "repmgr bdr register"
2017-07-11 15:38:58 +09:00
Ian Barwick
2962ffe605
repmgrd: initial BDR monitoring support
2017-07-10 23:58:59 +09:00
Ian Barwick
dddea9814b
Add BDR-related database functions
2017-07-10 21:52:39 +09:00
Ian Barwick
5fbcf3e476
Remove witness server references
2017-07-10 09:31:31 +09:00
Ian Barwick
9e3d942917
Handle various (unlikely) failure states
2017-07-10 09:00:18 +09:00
Ian Barwick
5bf7098139
repmgrd: consolidate clear_node_info_list() calls
2017-07-09 11:10:49 +09:00
Ian Barwick
2787994a6e
Make repmgrd failover settings configurable
2017-07-07 21:11:22 +09:00
Ian Barwick
0d226867b4
Add "location" column
2017-07-06 01:17:00 +09:00
Ian Barwick
614287548d
Fix function get_primary_node_record()
2017-07-05 11:20:32 +09:00
Ian Barwick
617dee6bd6
Add function create_event_record()
...
For logging an event to the event table without generating an external
event notification.
Rename existing create_event_record*() functions to create_event_notification*()
as this describes their function better.
2017-07-05 09:52:22 +09:00
Ian Barwick
24c6b2c9f1
repmgrd: initial code for cascaded standby failover
2017-07-04 23:14:05 +09:00
Ian Barwick
618a2346e1
repmgrd: various fixed, mainly clearing status after a failover event
2017-07-04 11:55:03 +09:00
Ian Barwick
c12bf01b5a
When clearing a node info list, reset the node count to 0
2017-07-03 21:59:02 +09:00
Ian Barwick
890b88d644
More failover fixes
2017-07-03 17:37:32 +09:00
Ian Barwick
debe5a18c5
have new primary communicate to standbys
2017-06-30 21:45:25 +09:00
Ian Barwick
fc4f276844
Improve handling
...
not sure if we need to store the electoral term...
2017-06-30 13:40:19 +09:00
Ian Barwick
3514e20367
poke it around until it works less badly
2017-06-29 09:35:09 +09:00
Ian Barwick
fa86fe4ad8
Basic voting
2017-06-29 01:11:21 +09:00
Ian Barwick
d6b6255144
interim commit
2017-06-28 18:20:03 +09:00
Ian Barwick
f4e8bf891d
interim commit
2017-06-28 17:28:26 +09:00
Ian Barwick
ded8d95e5a
interim commit
2017-06-28 16:38:41 +09:00
Ian Barwick
78a16d746d
Initial primary node monitoring
2017-06-27 00:15:29 +09:00
Ian Barwick
46c956e61a
Use "primary" instead of "master"
2017-06-23 21:33:54 +09:00
Ian Barwick
28808a02ab
Fix return value of _get_node_record()
2017-06-23 20:44:40 +09:00
Ian Barwick
1b2652037d
Rename enum types for consistency
2017-06-23 16:38:14 +09:00
Ian Barwick
dbaa2e0b44
Add a RecordStatus return type for functions which populate record structures
...
Unify a bunch of slightly different ways of handling the result.
2017-06-23 16:16:46 +09:00
Ian Barwick
6cdf73b4cb
repmgr standby promote: suppress master database connection error message
...
Otherwise the first line of output is an ERROR, which is confusing,
even though it's expected.
2017-06-21 13:21:44 +09:00
Ian Barwick
94a88326ef
repmgrd: further code ported
2017-06-20 09:17:29 +09:00
Ian Barwick
030fdc046b
repmgr standby follow: main code
2017-06-16 21:38:53 +09:00
Ian Barwick
7b976ef2df
repmgr standby follow: initial code
2017-06-16 00:05:18 +09:00
Ian Barwick
b440b5fcb8
Fix node record update query
2017-06-15 21:54:44 +09:00
Ian Barwick
36b3782009
Store the replication user in repmgr.nodes
...
When creating recovery.conf outside of "repmgr standby clone",
there was no way of knowing if a replication user had been
explicitly provided with --replication-user, meaning the value
of "primary_conninfo" would be set to the "conninfo" field of the
node's upstream node record.
We'll add an extra column to store the replication user for each
node so it can be referenced at any time.
2017-06-14 23:27:26 +09:00
Ian Barwick
e89c43c5cb
Remove unused backup functions
...
Not needed since removal of rsync functionality
2017-06-13 00:35:01 +09:00
Ian Barwick
f26f1c0428
Minor code tweaks
2017-06-13 00:31:01 +09:00
Ian Barwick
cc1f0a02cd
Add missing call to PQconninfoFree()
2017-06-13 00:22:41 +09:00
Ian Barwick
bb7d3e41c3
repmgr master unregister: check for downstream nodes
...
Foreign key dependencies will make it impossible to remove the node
if it still has downstream nodes pointing to it.
2017-06-12 22:24:50 +09:00
Ian Barwick
aa53514f9f
repmgr: various fixes for "master unregister"
2017-06-12 08:18:10 +09:00
Ian Barwick
fef184ce9a
Initial implementation of "repmgr master unregister"
...
Also adds "--dry-run" option
2017-06-12 08:17:58 +09:00
Ian Barwick
124398bed5
Replace is_standby() with get_recovery_type()
...
We what to know what kind of node it is, not whether it's a standby or not.
2017-06-09 11:25:43 +09:00
Ian Barwick
2d91413caf
Various minor fixes and code comments
2017-05-30 09:34:04 +09:00
Ian Barwick
51da33a260
Initial implementation of "standby promote"
2017-05-10 09:24:51 +09:00
Ian Barwick
c7f49541a3
Add "standby unregister"
2017-05-08 23:37:53 +09:00
