Andrzej Bialecki created SOLR-13575:
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Summary: DaemonStream-s should use a pool of threads
Key: SOLR-13575
URL: https://issues.apache.org/jira/browse/SOLR-13575
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Components: streaming expressions
Reporter: Andrzej Bialecki
Spin-off from SOLR-13566: currently it's possible to create unlimited number of
DaemonStream-s, with each stream adding a single thread per core. This may
easily lead to resource exhaustion.
DaemonStream-s should use a thread pool with limited max number of threads,
managed by Solr (ie. created with {{ExecutorUtil}}). An open issue is where the
pool should be created and maintained in the existing API - possible candidates
are: CoreContainer, SolrCore, or StreamFactory.
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