Ian Barwick
d4578e023e
Mention use_replication_slots in sample config file
2015-02-05 11:19:54 +09:00
Ian Barwick
9ceef937eb
Emit warning if -w/--wal-keep-segments used when use_replication_slots set
2015-02-05 11:17:23 +09:00
Ian Barwick
f047ec9526
Use DEFAULT_WAL_KEEP_SEGMENTS in help output instead of hard-coded number
2015-02-04 14:08:55 +09:00
Ian Barwick
a3f0e89a05
Improve pg_bindir parameter handling
...
Previously, the pg_bindir parameter was mandatory and could only be
provided in the repmgr.conf file, which was leading to the slightly
bizarre situation that e.g. for "clone standby", repmgr was complaining
that it didn't want the configuration file when it actually did.
pg_bindir is now optional - if not provided, it will use the default
path. It can be provided in the repmgr.conf file, or as a command
line parameter; the latter overrides the former.
2015-02-04 14:04:04 +09:00
Ian Barwick
3d9d0d98af
Improve repmgr configuration file handling
...
Previous behaviour was somewhat counterintuitive, with an error
message being logged if no configuration file provided or found,
even though this is not actually an error.
Configuration files now handled like this:
- if a configuration file is explicitly provided (-f), error out
if not found.
- if no configuration file explicitly provided, attempt to open
default configuration file; if this does not exist, log
notice and continue with default values.
Also, for 9.4 and later add a hint about replication slot usage
if 'use_replication_slots' not set.
2015-02-04 09:57:51 +09:00
Ian Barwick
49debcdf92
Add version check if replication slot usage requested
...
Replication slots require 9.4 or greater
2015-02-02 22:16:04 +09:00
Ian Barwick
7a760c32ff
Store slot name in repl_nodes table
2015-02-02 17:57:15 +09:00
Ian Barwick
b4b5e6cd30
do_standby_clone(): rename conn to primary_conn
...
For clarity.
2015-02-02 16:53:35 +09:00
Ian Barwick
2ece014952
Initial support for physical replication slots
...
Todo:
- if slots specified in repmgr.conf, verify server version
- store generated slot name in `repl_nodes` table
2015-02-02 15:53:53 +09:00
Ian Barwick
01360c3d39
Improve repl_status view.
2015-01-29 15:08:37 +09:00
Ian Barwick
031a726f04
Enable get_master_connection() to accept a null value for master_id
...
Saves worrying about the purpose of various superfluous ints
2015-01-29 11:25:01 +09:00
Ian Barwick
5c67d47881
Add query result tests
2015-01-28 18:05:19 +09:00
Ian Barwick
f40b3ac48a
Consolidate node type parsing
2015-01-28 11:57:34 +09:00
Ian Barwick
109269f7fb
When writing monitoring info, ensure standby connects to current primary
...
If the node is a cascaded standby and the primary fails, `primary_conn`
will not be updated automatically; when writing monitoring info,
ensure we connect to the current primary.
2015-01-27 21:19:25 +09:00
Ian Barwick
36d94c88ac
Handle empty result set
...
Should never happen, but just in case.`
2015-01-27 16:28:17 +09:00
Ian Barwick
23ef305afb
After promotion or follow, update internal node metadata record
2015-01-27 16:25:58 +09:00
Ian Barwick
99dae5cdcb
Function is_witness() no longer required
...
Node type can be extracted directly from the metadata
2015-01-27 15:32:13 +09:00
Ian Barwick
b552710767
Remove global variable my_local_mode
...
Information now contained in metadata`x
2015-01-27 13:53:36 +09:00
Ian Barwick
7e4c26b8a0
Clarify upstream role in log messages
2015-01-27 12:39:39 +09:00
Ian Barwick
f8639a7878
Add TODO note
2015-01-26 22:11:54 +09:00
Ian Barwick
f2309bd0a9
Remove redundant comments
2015-01-26 21:25:37 +09:00
Ian Barwick
061e72d7cd
Rename connection variable for clarity
...
Connection will always be the primary
2015-01-26 20:12:34 +09:00
Ian Barwick
0a19bf1e23
Reword notice to make more sense in log output context
2015-01-24 05:03:57 +09:00
Ian Barwick
84a4766f13
Basic failover for cascaded standby nodes
...
Attempt to attach to the next available upstream node, otherwise
quit monitoring. We'll need to add further options for failover
scenarios, including attempting to attach to another node,
shutting down the server completely etc.
2015-01-24 04:22:40 +09:00
Ian Barwick
3be8bf8e4c
Check primary connection
...
Verify that existing primary connection is valid, and if not
attempt to find and connect to the current primary node.
2015-01-22 12:20:23 +09:00
Ian Barwick
1e6f1a88b0
On local node failure, attempt to update record on primary server
2015-01-22 11:45:01 +09:00
Ian Barwick
4a8912c2b4
Update comments and debugging output
2015-01-22 10:59:33 +09:00
Ian Barwick
3279e9e47e
Separate functions for primary and cascading standby failover
2015-01-22 10:12:03 +09:00
Ian Barwick
5c4e77f8e2
do_failover() -> do_primary_failover()
2015-01-16 17:28:51 +09:00
Ian Barwick
b09f987341
Add note
2015-01-16 16:59:44 +09:00
Ian Barwick
fe758eda9f
Update repl_nodes following failover
...
repl_nodes table updated by each node following failover to
show that either it is the primary, or which primary it has
started to follow.
2015-01-16 16:28:09 +09:00
Ian Barwick
c413cff461
Function to update node records
2015-01-16 14:14:04 +09:00
Ian Barwick
609453a848
Handle failover of top-level standby
...
Cascaded standbys will not go into failover so we need to ignore
these when looking for candidates for promotion.
2015-01-16 12:35:01 +09:00
Ian Barwick
a82d37e48a
Improve node metadata and upstream connecting mechanism
...
To handle cascaded replication we're going to have to keep track
of each node's upstream node. Also enumerate the node type
("primary", "standby" or "witness") and mark if active.
2015-01-16 10:28:02 +09:00
Ian Barwick
4b6c097a3e
Use AS for consistency
2015-01-16 08:46:28 +09:00
Ian Barwick
3dfa33d01d
Store upstream node ID if set
...
Required to manage cascaded standbys
2015-01-16 00:29:43 +09:00
Ian Barwick
a20afe28ec
Add upstream_node_id to repl_nodes table
2015-01-15 23:54:07 +09:00
Ian Barwick
692204e381
Consolidate duplicated schema check code
2015-01-15 18:34:51 +09:00
Ian Barwick
2ae27521a3
Some infrastructure for supporting cascading replication
...
Does not fully work yet.
2015-01-15 15:37:09 +09:00
Ian Barwick
d141d2a8aa
Remove unused variable
2015-01-14 16:25:24 +09:00
Ian Barwick
fc6f5ddaa7
Add function repmgr_get_primary_conninfo()
2015-01-14 16:23:08 +09:00
Ian Barwick
4b7fb70de3
Add current year to copyright
2015-01-14 15:50:42 +09:00
Ian Barwick
5db6489ae5
Initial support for cascaded standbys
2015-01-14 14:18:57 +09:00
Ian Barwick
96f6695a52
Clean up repmgr_get_last_standby_location() polling loop
...
No need to reconnect on every iteration of the loop. Move conditions
which break out of the loop straight away out of the loop.
2015-01-13 16:08:36 +09:00
Ian Barwick
f006a79af9
Clean up log messages for invalid LSNs
2015-01-13 14:53:55 +09:00
Ian Barwick
3a8aa86e0c
Remove pointless check
2015-01-13 14:25:58 +09:00
Ian Barwick
9cbac64ad4
Remove pointless check
...
Witness server can never be considered as a promotion candidate.
2015-01-13 14:24:19 +09:00
Ian Barwick
242fc8416c
Consolidate disconnection calls
2015-01-13 13:59:27 +09:00
Ian Barwick
355d8b8f01
Use InvalidXLogRecPtr for pedantic correctness
2015-01-13 13:47:22 +09:00
Ian Barwick
8df7966540
Rename variable
...
"find_best" sounds like an imperative.
2015-01-13 13:42:30 +09:00
