Return true for can_match on idle search shards (#55428) #57158
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With this change, we will always return true for can_match requests on idle search shards; otherwise, some shards will never get refreshed if all search requests perform the can_match phase (i.e., total shards > pre_filter_shard_size). Relates elastic#27500 Relates elastic#50043
…#55799) This newly added listener should catch closed exceptions when accessing the internal engine. Closes elastic#55792
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Backport of #55428