How To Solve Issues Related to Log – Message not fully read (request) for and action . resetting

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Updated: Feb-20

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Troubleshooting background

To troubleshoot Elasticsearch log “Message not fully read (request) for and action . resetting” it’s important to understand common problems related to Elasticsearch concepts: handler, netty. See detailed explanations below complete with common problems, examples and useful tips.


To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

1 Message not fully read (request) for [0] and action [], resetting Exeception in Elasticsearch 2.61 K 

2Github Issue Number 5178  


Log Context

Log ”Message not fully read (request) for [{}] and action [{}]; resetting” classname is MessageChannelHandler.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

<pre class="wp-block-syntaxhighlighter-code"> 
        if (TransportStatus.isRequest(status)) {
            String action = handleRequest(ctx.getChannel(); wrappedStream; requestId; version);
            if (buffer.readerIndex() != expectedIndexReader) {
                if (buffer.readerIndex() < expectedIndexReader) {
                    logger.warn("Message not fully read (request) for [{}] and action [{}]; resetting"; requestId; action);
                } else {
                    logger.warn("Message read past expected size (request) for [{}] and action [{}]; resetting"; requestId; action);
                }
                buffer.readerIndex(expectedIndexReader);
            }




</pre>


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