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Andor Molnar resolved ZOOKEEPER-3179. ------------------------------------- Resolution: Fixed Issue resolved by pull request 690 [https://github.com/apache/zookeeper/pull/690] > Add snapshot compression to reduce the disk IO > ---------------------------------------------- > > Key: ZOOKEEPER-3179 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3179 > Project: ZooKeeper > Issue Type: Improvement > Reporter: Fangmin Lv > Assignee: Yisong Yue > Priority: Major > Labels: pull-request-available > Fix For: 3.6.0 > > Time Spent: 4.5h > Remaining Estimate: 0h > > When the snapshot becomes larger, the periodically snapshot after certain > number of txns will be more expensive. Which will in turn affect the maximum > throughput we can support within SLA, because of the disk contention between > snapshot and txn when they're on the same drive. > > With compression like zstd/snappy/gzip, the actual snapshot size could be > much smaller, the compress ratio depends on the actual data. It might make > the recovery time (loading from disk) faster in some cases, but will take > longer sometimes because of the extra time used to compress/decompress. > > Based on the production traffic, the performance various with different > compress method as well, that's why we provided different implementations, we > can select different compress method for different use cases. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)