How to Tell Engine Checkpoint Time

RE: How to Tell Engine Checkpoint Time

seani — Tue, 21 Jun 2016 22:50:38 GMT

thanks again!

RE: How to Tell Engine Checkpoint Time

Alok Mohare — Tue, 21 Jun 2016 22:37:53 GMT

Yes, it issues a check-point command to all engines at the same time.

You can choose to check-point engines individually too.
forum.appian.com/.../Configuring_Application_Checkpointing.html (Checkpointing a Specific Engine)

RE: How to Tell Engine Checkpoint Time

seani — Tue, 21 Jun 2016 22:34:45 GMT

Also, when running D:\\appian\\server\\_scripts\\checkpoint-suite.bat do all of the engines checkpoint at one? Or is it synchronous or asynchronous? Does it wait for one engine to finish checkpointing before going to the next engine?

RE: How to Tell Engine Checkpoint Time

seani — Tue, 21 Jun 2016 19:23:59 GMT

thanks!

RE: How to Tell Engine Checkpoint Time

Alok Mohare — Tue, 21 Jun 2016 19:23:18 GMT

Yes, what you posted is also accurate.

Based on the snippet of log you provided from the gw_*.log, it seems like the Engine took about 2 minutes, 39 seconds to checkpoint.

RE: How to Tell Engine Checkpoint Time

Alok Mohare — Tue, 21 Jun 2016 19:22:03 GMT

You can search / grep for "tailsave" in the db_*.log for the Appian Engine, to figure out how long it took to checkpoint.

For eg:
2016-03-07 20:36:57 [PA00001]
{pa53.kdb 528226} () WARN .a.pf.te "" "32996.85" ".a.db.tailsave"

This log shows that the Process Analytics 0000 Engine took 32996 milliseconds to checkpoint.

RE: How to Tell Engine Checkpoint Time

seani — Tue, 21 Jun 2016 18:33:53 GMT

2016-06-21 01:11:01 [PA00001] INFO .a.gw.ssa "Standard save initiated"
2016-06-21 01:13:40 [PA00001] WARN .a.gw.ssa "Database save took more than 60 sec - Please review hardware and software configuration."
2016-06-21 01:13:40 [PA00001] INFO .a.gw.ssa "Notify database of switch (fast track)"
2016-06-21 01:13:40 [PA00001] INFO .a.gw.ssa "Initiating switch 326 15302"
2016-06-21 01:13:40 [PA00001] INFO .a.gw.ssa "Server switchover to database ID 326"

looking at this entry I can see the checkpoint start at 01:11:01 and is it safe to say that it was completed at 01:13:40?

RE: How to Tell Engine Checkpoint Time

mohammedz — Tue, 21 Jun 2016 18:33:08 GMT

@seani

forum.appian.com/.../Configuring_Application_Checkpointing.html