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https://issues.apache.org/jira/browse/THRIFT-1324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13655624#comment-13655624
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Bryan Duxbury commented on THRIFT-1324:
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FrameTransport doesn't chunk messages across frames, it sends the entire
contents in a single packet framed with the message size. I can't speak to why
Cassandra would offer two different config parameters. Perhaps they are calling
out the difference between a message and the message with its framing overhead?
(This would be a constant 4 bytes, rather than 100, though.)
> TFramedTransport should enforce frame size limits on writes
> -----------------------------------------------------------
>
> Key: THRIFT-1324
> URL: https://issues.apache.org/jira/browse/THRIFT-1324
> Project: Thrift
> Issue Type: Bug
> Components: Java - Library
> Reporter: Jim Ancona
> Fix For: 1.0
>
>
> Currently TFramedTransport only enforces the maximum frame size when it
> receives a frame larger than its configured maxLength_ value. so there is no
> way to enforce a maximum frame size on the client. Because servers typically
> deal with oversized frames by silently dropping them (see THRIFT-1323),
> problems caused by oversized frames can be very hard to diagnose. Enforcing
> the maximum frame size on writes would enable clients to detect the frame
> size mismatch, assuming the client and server are configured with the same
> value.
> Note that the exception thrown in this case should not be a generic
> TTransportException--it should be either a subclass or a new
> TTransportException.type_ value so that clients can distinguish the frame too
> large error. This is important because most other TTransportException causes
> reflect transient conditions where retry may be appropriate, but a too-large
> frame will never succeed if retried.
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