[COUCHDB-1874] Continuous replication slows down over time

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Replication
• Assignee: Unassigned
• Reporter: Joan Touzet
• Created: 20/Aug/13 17:01
• Updated: 02/Sep/18 06:44
• Resolved: 02/Sep/18 06:44

Description

As reported on the mailing list:

> Did you specify "continuous": true in the replication spec? If you did, do you see the same slowdown if you omit that flag?

> This sounds rather similar to a bug we encountered in early builds of BigCouch, but I don't remember the history of the codebase well enough to say whether the bug might be latent in Apache CouchDB.

Yes, I was using "continuous": true.

You're right: When disabling "continuous", replication seems more stable and efficient (1200 doc/sec). Thank you !

And, from IRC:

12:54 <+rnewson> iirc the cause we found was an unconsumed event message that gradually fills the mailbox, which sounds like it ought to affect couchdb.

Issue Links

• relates to: COUCHDB-1986 04-replication-large-atts.t times out