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From "Paulo Motta (JIRA)" <>
Subject [jira] [Updated] (CASSANDRA-11839) Active streams fail with SocketTimeoutException
Date Wed, 25 May 2016 22:07:12 GMT


Paulo Motta updated CASSANDRA-11839:
    Reproduced In: 3.0.6, 3.5, 2.2.6, 2.1.14  (was: 2.1.14, 2.2.6, 3.5, 3.0.6)
           Status: Patch Available  (was: In Progress)

> Active streams fail with SocketTimeoutException
> -----------------------------------------------
>                 Key: CASSANDRA-11839
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Paulo Motta
>            Assignee: Paulo Motta
> The original reasoning behind {{streaming_socket_timeout_in_ms}} was to kill one-sided
hanging streams (CASSANDRA-3838). This was never much of a problem when the default was zero
(never timeout).
> On CASSANDRA-8611 we changed the default to 1 hour, but it was never enforced due to
CASSANDRA-11286, which was fixed recently.
> On recent releases we've been receiving reports of stream failures when streaming large
files, because the sender incoming socket becomes inactive, times out after 1 hour, and the
stream session fails with {{SocketTimeoutException}} (CASSANDRA-11345, CASSANDRA-11826), even
though the stream session is still active. The session also fails if 2i/MV rebuild takes longer
than 1 hour on the receiver (CASSANDRA-8343).
> The definitive fix on trunk is to add a {{KeepAlive}} message to the stream protocol
to detect broken connections and retire {{streaming_socket_timeout_in_ms}}. But we must also
increase the default {{streaming_socket_timeout_in_ms}} in older versions to a more conservative
value, so it is still able to detect long hanging streams.

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