Christine Poerschke created SOLR-16500:
------------------------------------------
Summary: pass {{--enable-preview}} to JVM if exactly Java 19
Key: SOLR-16500
URL: https://issues.apache.org/jira/browse/SOLR-16500
Project: Solr
Issue Type: Task
Components: scripts and tools
Reporter: Christine Poerschke
[~uschindler] wrote on
https://issues.apache.org/jira/browse/SOLR-16442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620361#comment-17620361
ticket:
{quote}
We should also think of updating the startup scripts to pass
{{--enable-preview}} to JVM if exactly Java 19 is detected. Elasticsearch and
Opensearch will / have already done this. Not doing this will print a startup
warning on Java 19 to Java logging.
The main reason to pass {{--enable-preview}} to the JVM is to allow
MMapDirectory V2 to be enabled and memory mapping happening in larger junks for
less overhead and use of kernel resources (see vm.max-map-count sysctl). It
also reduces risk of crushing JDK on bad written plugins or bugs with reopening
IndexSearcher/IndexReader.
See https://github.com/apache/lucene/pull/912 for more details.
{quote}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
