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https://issues.apache.org/jira/browse/THRIFT-4480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16388706#comment-16388706
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ASF GitHub Bot commented on THRIFT-4480:
----------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/thrift/pull/1487


> NodeJS warning on binary_protocol writeMessageEnd when seqid = 0
> ----------------------------------------------------------------
>
>                 Key: THRIFT-4480
>                 URL: https://issues.apache.org/jira/browse/THRIFT-4480
>             Project: Thrift
>          Issue Type: Bug
>          Components: Node.js - Library
>    Affects Versions: 0.11.0
>            Reporter: Brian Forbis
>            Assignee: James E. King, III
>            Priority: Minor
>             Fix For: 0.12.0
>
>
> The nodeJS implementation of binary protocol has some internal state that 
> keeps track of the `seqid` between calls to `writeMessageBegin` and 
> `writeMessageEnd`. There is a line that will emit a warning if the seqid 
> can't be unset:
> {code:java}
> TBinaryProtocol.prototype.writeMessageEnd = function() {
>     if (this._seqid) {
>         this._seqid = null;
>     } else {
>         log.warning('No seqid to unset');
>     }
> };{code}
>  
> but it does not take into account that the seqid can be set to "0" which is a 
> falsey value. This causes warnings to be emitted for valid messages.
> This bug can be reproduced by connecting a perl client to a nodeJS server. 
> Perl will always send a sequenceID of 0, causing the warning to occur every 
> time the node server responds to an RPC request.
>  
> Even though this warn line has been in the nodeJS library for several 
> releases, the bug only affects thrift version 11 because until that version 
> the logger had not been implemented yet and would swallow all warnings.
>  



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