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| Release Notes for Apache Helix 0.9.9 |
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| Release Notes for Apache Helix 0.9.9 |
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| The Apache Helix team would like to announce the release of Apache Helix 0.9.9. |
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| This is the twenty-third release under the Apache umbrella, and the nineteenth as a top-level project. |
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| Helix is a generic cluster management framework used for the automatic management of partitioned, replicated and distributed resources hosted on a cluster of nodes. |
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| * Key Note for Helix Release |
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| In this release, there are three type of configuration for ZK write limitations: |
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| * jute.maxbuffer: This used to be consistent with jute maxbuffer set for ZkClient. So if your data size is over this value, write is not allowed. |
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| * zk.serializer.znrecord.write.size.limit.bytes: If the ZNode size is larger than the value you set (even after compression), the data will NOT be written to ZK at ZNRecorderSerializer level. Default is 1MB |
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| * zk.serializer.znrecord.auto-compress.threshold.bytes: If the ZNode size is larger than the value you set, compression will be applied for this ZNode. |
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| * Detailed Changes |
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| ** Improvements |
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| * Add separate ZK serializer configuration to active ZNRecord compression when size exceeds a threshold. #1901 |
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| * Validate data write size limit in ZkClient #1072 |
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| [] |
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| Cheers, |
| -- |
| The Apache Helix Team |
