Details
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New Feature
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Resolution: Done
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Minor - P4
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None
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None
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None
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Fully Compatible
Description
In heavy write dbs, we see performance drop when oplog is enabled (Master-Slave, MS or RS).
In case mongod would allow options f.e.
--sendoplogserver [server:port] --sendoplogdb [db] --sendoplogcollection [collection]
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this would help the master database to focus just on application needs (to write data) and less overhead would be needed for local writes of the oplog.
Assuming 4 heavy-write servers. It would be cheap to build one slow server on fast network to receive ALL oplogs from the 4 servers.