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https://issues.apache.org/jira/browse/ZOOKEEPER-3352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813760#comment-16813760
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Brian Nixon commented on ZOOKEEPER-3352:
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We've been curious whether wiring ZooKeeper on top of RocksDB could give
similar performance benefits that Instagram saw with putting Apache Cassandra
on top of RocksDB
([https://instagram-engineering.com/open-sourcing-a-10x-reduction-in-apache-cassandra-tail-latency-d64f86b43589]
for some details). Something like this ticket that involves abstracting out
the data storage components would be useful for us.
> Use LevelDB For Backend
> -----------------------
>
> Key: ZOOKEEPER-3352
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3352
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Major
> Fix For: 4.0.0
>
>
> Use LevelDB for managing data stored in ZK (transaction logs and snapshots).
> https://stackoverflow.com/questions/6779669/does-leveldb-support-java
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