How can I ask these questions differently?

It also appears that replication between 1.1.1 and 1.2 just stalls after a 
while and only recourse is to cancel it and start it new.  There seems to be no 
indication of why the stalling occurs.

What is common practice to monitor the replication process?


________________________________
 From: Andreas Kemkes <[email protected]>
To: [email protected] 
Sent: Thursday, June 21, 2012 9:50 AM
Subject: Re: Replication and checkpoints - what to expect?
 
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________________________________
From: Andreas Kemkes <[email protected]>
To: "[email protected]" <[email protected]> 
Sent: Tuesday, June 19, 2012 5:36 PM
Subject: Replication and checkpoints - what to expect?

Upgrading to 1.2 on the target system allowed me to setup an unfiltered 
continuous replication between a couchdb 1.1.1 instance and a couchdb 1.2 and 
then use the latter as the source for several filtered continuous replications 
to shard a monolithic couchdb database.

The unfiltered replication was started from the futon replicator api, all the 
others from the command line using the ../_replicate call.  All replications 
are pull.

The all work nicely, except that the replication between couchdb 1.1.1 and 
couchdb 1.2 seems to not write any checkpoints after a while:

Checkpointed source sequence 911275, current source sequence 918089, progress 
99%

Is this to be expected?  Would an upgrade to couchdb 1.2 on the source system 
correct the issue?


I also think that the filtered replications, which don't involve couchdb 1.1.1, 
only checkpoint to the latest sequence that involves a document that passes the 
filter.  Even if new documents are added at the source and replicated to the 
target, a new checkpoint is not always written.

Is this a known issue?

How can I further narrow down the issue?

Any documentation on the interplay of replication and checkpoints would helpful 
as well.  Thanks for your help.

-- Andreas

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