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[SPARK-27272][CORE] Enable blacklisting of node/executor on fetch failures by default #24208

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Original file line number Diff line number Diff line change
Expand Up @@ -494,7 +494,7 @@ package object config {
private[spark] val BLACKLIST_FETCH_FAILURE_ENABLED =
ConfigBuilder("spark.blacklist.application.fetchFailure.enabled")
.booleanConf
.createWithDefault(false)
.createWithDefault(true)
// End blacklist confs

private[spark] val UNREGISTER_OUTPUT_ON_HOST_ON_FETCH_FAILURE =
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8 changes: 4 additions & 4 deletions docs/configuration.md
Original file line number Diff line number Diff line change
Expand Up @@ -1727,11 +1727,11 @@ Apart from these, the following properties are also available, and may be useful
</tr>
<tr>
<td><code>spark.blacklist.application.fetchFailure.enabled</code></td>
<td>false</td>
<td>true</td>
<td>
(Experimental) If set to "true", Spark will blacklist the executor immediately when a fetch
failure happens. If external shuffle service is enabled, then the whole node will be
blacklisted.
Spark blacklists the executor immediately when a fetch failure happens, if
<code>spark.blacklist.enabled</code> is set to "true". If external shuffle service is
enabled, then the whole node will be blacklisted.
</td>
</tr>
<tr>
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