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https://issues.apache.org/jira/browse/SAMZA-543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14299572#comment-14299572
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Jay Kreps commented on SAMZA-543:
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Another one that would be worth trying is the bulk load facilities. For
bootstrapping this should be significantly faster as it eliminates all the
write amplification and compaction...
> Disable WAL in RocksDB KV store
> -------------------------------
>
> Key: SAMZA-543
> URL: https://issues.apache.org/jira/browse/SAMZA-543
> Project: Samza
> Issue Type: Bug
> Components: kv
> Affects Versions: 0.9.0
> Reporter: Chris Riccomini
> Fix For: 0.9.0
>
>
> RocksDB uses a write-ahead log by default. This is unnecessary in Samza,
> since we have full durability from a state store's changelog topic. We should
> [disable the
> WAL|https://github.com/facebook/rocksdb/wiki/Basic-Operations#asynchronous-writes]
> in the RocksDB KV store.
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