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The performance of /v2/recordsets API was found slow when filtering on large amount of recordsets. The patch proposes the following ways to improve the performance, and was tested with 1M recordsets. 1. To explicitly mention a correct table index in sql queries for different sort keys and filtering keys. We found mysql optimizer is not able to choose the most suitable index; 2. Introduce a new header 'OpenStack-DNS-Hide-Counts' to give operators the flexibility of showing total_count or not, because we found that the count query does not scale well on a large amount of records. Performance results are at: https://gist.github.com/jamesyli/2eb9fb474a493477a9beb42fe122180f DB migration Change-Id: I7f3a09ce2c7396ff6ad02d3b5d562d186f66ed30 |
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