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Posted to dev@thrift.apache.org by "James E. King III (JIRA)" <ji...@apache.org> on 2019/01/31 18:35:00 UTC

[jira] [Updated] (THRIFT-4405) Incorrect handling of sequence numbers that wrap to negative

     [ https://issues.apache.org/jira/browse/THRIFT-4405?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James E. King III updated THRIFT-4405:
--------------------------------------
    Summary: Incorrect handling of sequence numbers that wrap to negative  (was: c_glib does not accept seqid < 0, cpp json readHeaderBegin corrupts negative seqid)

> Incorrect handling of sequence numbers that wrap to negative
> ------------------------------------------------------------
>
>                 Key: THRIFT-4405
>                 URL: https://issues.apache.org/jira/browse/THRIFT-4405
>             Project: Thrift
>          Issue Type: Improvement
>          Components: Test Suite
>    Affects Versions: 0.11.0
>         Environment: docker ubuntu-xenial
>            Reporter: James E. King III
>            Assignee: James E. King III
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Create a feature test that verifies sequence numbers are used properly.  Write a server that verifies clients are generating unique sequence IDs.  Write a client that makes sure servers return the same sequence ID that was given.
> To do this, I enhanced the C++ TProcessorEventHandler class to include a preReadSeq, which is like preRead but carries the sequence ID.
> In the C++ TestServer, I check to see if the sequence numbers are unique and do not repeat; if any of them do, the cpp test fails.
> The following languages properly send sequence IDs (for the binary protocol):
> * dart
> * go
> * nodejs
> * java
> * rs
> The rest of the languages do not.  Now, one could argue that unless a language has a concurrent-safe client and server, sequence IDs are unnecessary.  While that is true, all languages should respect that the protocol has a sequence ID and there could be future implementations that will require all clients are well-behaved, which is why I am putting this test in.
> Languages fixed up so unique sequence IDs are sent by the client, and verified by the tests:
> * cpp (was only sending unique sequence IDs for Concurrent clients, now it does for the regular one too)
> * csharp (seqid_ was not bring incremented with each use)
> * lua (seqid_ was not bring incremented with each use)
> * perl (seqid_ was not bring incremented with each use)
> * ruby (seqid_ was not bring incremented with each use and a unit test was updated to no longer be pending)
> Languages left to do:
> * c_glib
> * erlang
> * haskell
> * php
> * python
> * python3
> * any non-cross tested languages



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