b034153df7
There is a watchdog in order to avoid long running (and expensive) grok expressions. Currently the watchdog is thread based, threads that run grok expressions are registered and after completion unregister. If these threads stay registered for too long then the watch dog interrupts these threads. Joni (the library that powers grok expressions) has a mechanism that checks whether the current thread is interrupted and if so abort the pattern matching. Newer versions have an additional method to abort long running pattern matching inside joni. Instead of checking the thread's interrupted flag, joni now also checks a volatile field that can be set via a `Matcher` instance. This is more efficient method for aborting long running matches. (joni checks each 30k iterations whether interrupted flag is set vs. just checking a volatile field) Recently we upgraded to a recent joni version (#47374), and this PR is a followup of that PR. This change should also fix #43673, since it appears when unit tests are ran the a test runner thread's interrupted flag may already have been set, due to some thread reuse. |
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