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Do not ignore exception when trim unreferenced readers #48470

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@dnhatn dnhatn commented Oct 24, 2019

We should not suppress the exception and fail translog if we fail to close the reader.

@dnhatn dnhatn added >bug :Distributed Indexing/Engine Anything around managing Lucene and the Translog in an open shard. v8.0.0 v7.6.0 labels Oct 24, 2019
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Pinging @elastic/es-distributed (:Distributed/Engine)

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Is there an underlying problem with how this is handled today?

Closing the reader only closes the underlying file channel. Given that the reader is dead/unused info anyway, it seems excessive to fail the translog due to failing to close the channel? Just like we ignore exceptions if we cannot delete the files afterwards.

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dnhatn commented Oct 28, 2019

@henningandersen Yes, I agree. It's too harsh to fail translog in this case. Thank you for looking.

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