Type:
Task
Priority:
Critical
Resolution:
Fixed
MDEV-9202 , MDEV-8509 shows cases where the systemd timeout isn't sufficient to preform initialization/shut-down.
Since https://github.com/systemd/systemd/commit/a327431bd168b2f327f3cd422379e213c643f2a5 released in system v236 Type=notify service can now advice to the systemd service manager they are still working to avoid the service timing out.
The use of EXTEND_TIMEOUT_USEC= on older services has no effect and is therefore compatible.
This needs to be included in (feel free to correct/extend):
buffer pool dump - buf_dump (storage/innobase/buf/buf0dump.cc)
redo log recovery - log_group_read_log_seg (storage/innobase/log/log0log.cc)
undo recovery - recv_recover_page_func (storage/innobase/log/log0recv.cc)
change buffer?
merge buffer?
I was planning on making the 15 seconds of recv_sys_t->report() more general with respect to interval, and use a define INNODB_REPORT_INTERVAL (include/univ.i?) as the basis for this form of watchdog. I'd send notify messages of INNODB_REPORT_INTERVAL * 2 as an acceptable margin.
Anywhere else or other suggestions marko , jplindst ?
galera SST scripts - donor and recipient
Any other server/engine slow points to account for?
Target 10.3 and then look at a backport?
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