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https://issues.apache.org/jira/browse/SOLR-16187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17583955#comment-17583955
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Mike Drob commented on SOLR-16187:
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The docs on ThreadLeakLingering even say that we need it when there are
Executors around...
> ExecutorUtil#awaitTermination shouldn't wait forever
> ----------------------------------------------------
>
> Key: SOLR-16187
> URL: https://issues.apache.org/jira/browse/SOLR-16187
> Project: Solr
> Issue Type: Bug
> Reporter: Kevin Risden
> Assignee: Kevin Risden
> Priority: Major
> Time Spent: 50m
> Remaining Estimate: 0h
>
> While looking at some of the other thread leak issues, found that
> ExecutorUtil#awaitTermination is waiting basically forever:
> https://github.com/apache/solr/blob/main/solr/solrj/src/java/org/apache/solr/common/util/ExecutorUtil.java#L98
> {code:java}
> public static void awaitTermination(ExecutorService pool) {
> boolean shutdown = false;
> while (!shutdown) {
> try {
> // Wait a while for existing tasks to terminate
> shutdown = pool.awaitTermination(60, TimeUnit.SECONDS);
> } catch (InterruptedException ie) {
> // Preserve interrupt status
> Thread.currentThread().interrupt();
> }
> }
> }
> {code}
> Instead it should be possible to wait and then if still not shutdown then
> interrupt the threads? ie: pool.shutdownNow() then another awaitTermination
> to at least limit the termination time to 2*60 seconds?
> This would at least have some bound to shutting stuff down.
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