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[SPARK-45257][CORE] Enable spark.eventLog.compress by default #43036

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[SPARK-45257][CORE] Enable spark.eventLog.compress by default #43036

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36c2e63
[SPARK-45257][CORE] Enable spark.eventLog.compress by default
dongjoon-hyun Sep 21, 2023
efbcdc0
Merge branch 'master' into SPARK-45257
dongjoon-hyun Sep 21, 2023
4b4d9d3
Merge branch 'master' into SPARK-45257
dongjoon-hyun Sep 22, 2023
b54b785
Update docs/core-migration-guide.md
dongjoon-hyun Sep 22, 2023
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2 changes: 1 addition & 1 deletion core/src/main/scala/org/apache/spark/internal/config/package.scala
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Expand Up @@ -165,7 +165,7 @@ package object config {
ConfigBuilder("spark.eventLog.compress")
.version("1.0.0")
.booleanConf
.createWithDefault(false)
.createWithDefault(true)

private[spark] val EVENT_LOG_BLOCK_UPDATES =
ConfigBuilder("spark.eventLog.logBlockUpdates.enabled")
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2 changes: 1 addition & 1 deletion docs/configuration.md
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Expand Up @@ -1311,7 +1311,7 @@ Apart from these, the following properties are also available, and may be useful
</tr>
<tr>
<td><code>spark.eventLog.compress</code></td>
<td>false</td>
<td>true</td>
<td>
Whether to compress logged events, if <code>spark.eventLog.enabled</code> is true.
</td>
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4 changes: 4 additions & 0 deletions docs/core-migration-guide.md
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Expand Up @@ -22,6 +22,10 @@ license: |
* Table of contents
{:toc}

## Upgrading from Core 3.4 to 4.0

- Since Spark 4.0, Spark will compress event logs. To restore the behavior before Spark 4.0, you can set `spark.eventLog.compress` to `false`.

## Upgrading from Core 3.3 to 3.4

- Since Spark 3.4, Spark driver will own `PersistentVolumnClaim`s and try to reuse if they are not assigned to live executors. To restore the behavior before Spark 3.4, you can set `spark.kubernetes.driver.ownPersistentVolumeClaim` to `false` and `spark.kubernetes.driver.reusePersistentVolumeClaim` to `false`.
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