Robert Munteanu created SLING-11149:
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Summary: Expose information about cleaned up leftover ThreadLocal
values
Key: SLING-11149
URL: https://issues.apache.org/jira/browse/SLING-11149
Project: Sling
Issue Type: New Feature
Components: Commons
Reporter: Robert Munteanu
Fix For: Commons Threads 3.3.0
As discussed in SLING-10831, the ThreadLocal cleanup feature is valuable as a
safeguard for code that might lead to hard-to-diagnose memory leaks.
At the same time, it does not let developers know when a leak has been
prevented. We should improve this. The following improvements can be made:
# log with a {{WARN}} level any cleanup operation. Care must be taken to not
overflow the logs, so maybe a way of only reporting a cleanup for a certain key
once can be used (memory-bound)
# expose a counter that reports how many cleanup operations have been performed
by a given thread pool
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