[HDFS-14451] Incorrect header or version mismatch log message

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.3.0, 3.2.1, 3.1.3
• Component/s: ipc
• Labels: noob
• Assignee: Shweta
• Reporter: David Mollitor
• Created: 23/Apr/19 14:48
• Updated: 02/Oct/19 17:14
• Resolved: 24/May/19 16:44

Description

Server.java

          if (!RpcConstants.HEADER.equals(dataLengthBuffer)
              || version != CURRENT_VERSION) {
            //Warning is ok since this is not supposed to happen.
            LOG.warn("Incorrect header or version mismatch from " + 
                     hostAddress + ":" + remotePort +
                     " got version " + version + 
                     " expected version " + CURRENT_VERSION);
            setupBadVersionResponse(version);
            return -1;

This message should include the value of RpcConstants.HEADER and dataLengthBuffer in addition to just the version information or else that data is lost.