Guo Xiang Tan
58e52c0e4f
DEV: Use rails_failover gem for ActiveRecord and Redis failover handling
2020-06-15 15:47:07 +08:00
Guo Xiang Tan
0ff86b00cb
DEV: Upgrade Redis to 4.2.1.
2020-06-15 10:05:22 +08:00
Guo Xiang Tan
78b5ab746c
DEV: No longer need to clear anon cache when toggling readonly mode.
2020-06-12 09:58:17 +08:00
Guo Xiang Tan
dc4071dfef
DEV: Use Rails.logger instead of logster for rails_failover callbacks
...
`Discourse.warn_exception` logs to logger by default but it means we
lose all the backtrace when the logs are written to the log file.
2020-06-11 17:24:32 +08:00
Guo Xiang Tan
1411b095eb
DEV: Rescue errors when runngin AR failover/fallback callbacks.
2020-06-11 13:02:42 +08:00
Guo Xiang Tan
34ee1f2e71
DEV: Fix undefined method in rails_failover initializer.
2020-06-11 12:30:01 +08:00
Guo Xiang Tan
cbb4ea1ea8
DEV: Don't blow up request redis can't be reached during failover.
2020-06-11 11:41:06 +08:00
Guo Xiang Tan
a3dfd553a1
Revert "Bump redis to 4.2.0."
...
This reverts commit 98bc28cea2
2020-06-10 14:52:05 +08:00
Guo Xiang Tan
98bc28cea2
Bump redis to 4.2.0.
2020-06-10 14:28:56 +08:00
Guo Xiang Tan
2ce829cc01
DEV: Allow multisite apps to boot with reading connection handler.
2020-06-10 14:18:29 +08:00
Guo Xiang Tan
a1c13eb3c6
DEV: Redis failover should only clear redis recently readonly.
2020-06-09 16:36:31 +08:00
Guo Xiang Tan
f6628e4f43
DEV: Disable messageBus keepalive when Redis fails over.
2020-06-08 12:33:08 +08:00
Guo Xiang Tan
54f79ea3ba
DEV: Pausing Sidekiq is multisite aware.
2020-06-04 15:46:30 +08:00
Guo Xiang Tan
8e1681d356
Bump rails_failover.
2020-06-04 15:22:35 +08:00
Guo Xiang Tan
439db7ca1e
DEV: Add REDIS_RAILS_FAILOVER env to test our new redis failover.
2020-06-02 17:24:14 +08:00
Guo Xiang Tan
ade60b0cbc
DEV: Enable readonly mode for all multisite sites when PG goes down.
...
The risk here is that the database for one site goes down in the multisite setup and we drop everything to readonly mode. However, I discussed this with Sam and we agree that one database having problem is very rare. Most of the time, it is the entire DB cluster that goes down.
2020-06-02 11:32:07 +08:00
Guo Xiang Tan
326d6d5b0f
DEV: Pause Sidekiq when forcing pg readonly mode.
2020-06-02 09:20:03 +08:00
Guo Xiang Tan
32735be5bd
DEV: Fix publish to message_bus when forcing pg readonly.
2020-06-01 13:26:12 +08:00
Guo Xiang Tan
2c3ff3e524
DEV: Missing readonly mode banner when forcing PG readonly.
2020-06-01 12:25:27 +08:00
Guo Xiang Tan
b0b37bf5a3
DEV: Add force rails_over switch via Redis.
2020-06-01 11:23:58 +08:00
Guo Xiang Tan
8c86a109bb
DEV: Add ENV flag to test out ActiveRecord::Failover.
2020-05-28 16:24:22 +08:00
