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https://issues.apache.org/jira/browse/BEAM-7718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16883006#comment-16883006
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Steve Niemitz commented on BEAM-7718:
-------------------------------------
One thing I did notice using the gRPC client is that there are a lot of
spurious DEADLINE_EXCEEDED errors from the pull() call timing out after 15
seconds if no messages have arrived. This seems safe to ignore?
> PubsubIO to use gRPC API instead of JSON REST API
> -------------------------------------------------
>
> Key: BEAM-7718
> URL: https://issues.apache.org/jira/browse/BEAM-7718
> Project: Beam
> Issue Type: New Feature
> Components: io-java-gcp
> Reporter: Steve Niemitz
> Priority: Major
>
> {quote}The default implementation uses the HTTP REST API, which seems to be
> much less performant than the gRPC implementation. Is there a reason that
> the gRPC implementation is essentially unavailable from the public API?
> PubsubIO.Read.withClientFactory is package private. I worked around this by
> making it public and rebuilding{quote}
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