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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (COUCHDB-1874) Continuous replication slows down over time
Date Wed, 29 Jan 2014 07:56:14 GMT


ASF subversion and git services commented on COUCHDB-1874:

Commit b35884580436824adc7f250d9adbe857440026d7 in branch refs/heads/1986-fix-ibrowse-infinite-async-timeout
from [~dch]
[;h=b358845 ]

ibrowse: fix async hang due to infinite timeout

- import upstream timeout fix[1]
- addresses COUCHDB-1986 and quite possibly COUCHDB-1874 as well


> Continuous replication slows down over time
> -------------------------------------------
>                 Key: COUCHDB-1874
>                 URL:
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Replication
>            Reporter: Joan Touzet
> As reported on the mailing list:
> bq. > Did you specify "continuous": true in the replication spec?  If you did, do
you see the same slowdown if you omit that flag?
> bq. > 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.
> bq. Yes, I was using "continuous": true.
> bq. You're right: When disabling "continuous", replication seems more stable and efficient
(1200 doc/sec). Thank you !
> And, from IRC:
> bq. 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.

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