Comments on: What are the Replication Agents waiting on? Accumulating wait stats by agent session

By: Joe Sack

Joe Sack — Thu, 16 Feb 2012 09:42:03 +0000

Thanks Brad!

By: Bradley Ball

Bradley Ball — Thu, 16 Feb 2012 05:04:38 +0000

Great post Joe! Really cool wait of breaking troubleshooting replication down into looking at wait stats and bottleneck per-process!

By: Joe Sack

Joe Sack — Thu, 16 Feb 2012 02:29:22 +0000

Thanks Farhan!

By: Farhan

Farhan — Thu, 16 Feb 2012 01:38:44 +0000

Another great post Joe

By: Joe Sack

Joe Sack — Thu, 16 Feb 2012 01:21:02 +0000

Thanks Al and Tim!

Tim, regarding the bottleneck, in this scenario I would prioritize the IO_COMPLETION of session 57 (look at I/O path related considerations). So the key thing is to use the Waits and Queues methodology as you would with any other session – only in this case, we’ve narrowed it down to our agent sessions. Make sense?

By: John Songy

John Songy — Wed, 15 Feb 2012 21:54:23 +0000

Nice! Thanks, Joe!

By: Tim Knoob

Tim Knoob — Wed, 15 Feb 2012 14:13:57 +0000

Hi Joe,

Great information.

Based on the results, where is the bottleneck and how do you fix it?

Thanks.

Tim