Next checkpoint time is set by the formula:
period = self.checkpoint_interval + offset,
where offset is defined as follow:
offset = random % self.checkpoint_interval
So offset must be calculated again if at least the new
interval is less than the old one.
Closes #3370
---
Ticket: https://github.com/tarantool/tarantool/issues/3370
Branch:
https://github.com/tarantool/tarantool/compare/kbelyavs/gh-3370-fix-bug-with-wrong-snapshot-scheduling
src/box/lua/checkpoint_daemon.lua | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/box/lua/checkpoint_daemon.lua
b/src/box/lua/checkpoint_daemon.lua
index e7ef05fdb..ec129010f 100644
--- a/src/box/lua/checkpoint_daemon.lua
+++ b/src/box/lua/checkpoint_daemon.lua
@@ -80,6 +80,7 @@ local function daemon_fiber(self)
break
elseif msg == 'reload' then
log.info("reloaded") -- continue
+ offset = random % self.checkpoint_interval
elseif msg == nil and box.info.status == 'running' then
local s, e = pcall(process, self)
if not s then
--
2.14.3 (Apple Git-98)
