api_custom_jvm_pcpp.md

copyright	lastupdated	keywords	subcollection
years 2017, 2024	2024-12-07	watsonx.data, spark, emr	watsonxdata

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JVM properties for Presto (C++) - coordinator nodes

{: #api_custom_jvm_pcpp}

You can customize the coordinator JVM properties through an API for Presto (C++).

Property name	Type	Validation added
-XX:G1HeapRegionSize	String	Limit {1, 1e13}; supported values are numbers with or without units TB, MB, GB, B, KB, M, G, B
-XX:ReservedCodeCacheSize	String	Limit {1, 1e13}; supported values are numbers with or without units TB, MB, GB, B, KB, M, G, B
-Djdk.nio.maxCachedBufferSize	Integer	Limit {1, 1e13}
-Dalluxio.user.app.id	String	Any string
-Duser.timezone	String	Any string
-xgc	String	Any string
-Xmx	String	Any string
-Xms	String	Any string
{: caption="JVM properties for Presto (C++) - coordinator nodes" caption-side="bottom"}