Fix possible assertion failure in IndicesQueryCache.close #38733
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) The assertion that the stats2 map is empty in IndicesQueryCache.close has been observed to fail very occasionally in internal cluster tests. The likely cause is a cross-thread visibility problem for a count variable. This change makes that count volatile. Relates elastic#37117
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droberts195
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The assertion that the stats2 map is empty in
IndicesQueryCache.close has been observed to
fail very occasionally in internal cluster tests.
The likely cause is a cross-thread visibility
problem for a count variable. This change
makes that count volatile.
Relates #37117
Backport of #38714