[GitHub] [couchdb] nickva commented on issue #2095: Using CouchDB2.0 replication of one of our dbases never completes. Thousands of pending documents, and only a few get written.

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nickva commented on issue #2095: Using CouchDB2.0 replication of one of our dbases never completes. Thousands of pending documents, and only a few get written. 
URL: https://github.com/apache/couchdb/issues/2095#issuecomment-518437860
 
 
   Thank you for your report, @rvaldepenas 
   
   What version of CouchDB are you using?
   
   Here are some parameters to try to adjust:
   
   If you suspect your documents, or attachments are rather large, try increasing
   ```
   [httpd] max_httpd_request_size = <bytes>
   ```
   In a few previous CouchDB version that was set at 64Mb so if you have anything large (doc + attachment size) it might fail. In 2.3.x it is set to 4Gb so if your version is 2.3.x the default is hopefully ok.
   
   The other limits are
   
   ```
   [couchdb]
   max_document_size = <bytes>
   max_attachment_size = <bytes>
   ```
   
   Though the defaults for those should be infinity by default. But you can try to increase them if you've already configured them.
   
   For the fabric timeout error. Can try increasing
   ```
   [fabric]
   request_timeout = <msec>
   ```
   The default is 60000 so can try to make it 120000 perhaps.
   
   There are some replication parameters such as `worker_processes` and `connection_timeout` that might help as well.
   
   

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