Details
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Improvement
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Status: Closed
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Major
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Resolution: Won't Fix
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Description
I made some experiments with OTP's disk_log module (available since 2001 at least) to use it to manage the log file.
It turns out I got better throughput by using it. Basically it adopts a strategy similar to the asynchronous couch_file Damien described in this thread:
Here's a benchmark with relaximation, 50 writers, 100 readers, documents of 1Kb, delayed_commits set to false and 'info' log level (default):
http://graphs.mikeal.couchone.com/#/graph/9e19f6d9eeb318c70cabcf67bc013c7f
The reads got a better throughput (bottom graph, easier to visualize).
The patch (also attached here), which has a descriptive comment, is at:
https://github.com/fdmanana/couchdb/compare/logger_perf.patch
Attachments
Attachments
Issue Links
- relates to
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COUCHDB-1380 logrotate doesn't work correctly with couchdb 1.2.x
- Resolved