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  1. MariaDB Server
  2. MDEV-30348

show slave status is not consistent between named and unnamed source

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    Description

      Here is a ugly code from replication-manager to detect if a server is a slave 

      var ss dbhelper.SlaveStatus
      		 
      	ss, _, errss := dbhelper.GetSlaveStatus(server.Conn, server.ClusterGroup.Conf.MasterConn, server.DBVersion)
      		 
      	// We have no replicatieon can this be the old master
      		 
      	//  1617 is no multi source channel found
      		 
      	noChannel := false
      		 
      	if errss != nil {
      		 
      		if strings.Contains(errss.Error(), "1617") || strings.Contains(errss.Error(), "3074") {
      		 
      			// This is a special case when using muti source there is a error instead of empty resultset when no replication is defined on channel
      		 
      			//	server.ClusterGroup.LogPrintf(LvlInfo, " server: %s replication no channel err 1617 %s ", server.URL, errss)
      		 
      			noChannel = true
      		 
      		}
      		 
      	}
      		 
      	if errss == sql.ErrNoRows || noChannel {

      As notice any reason not to send an empty result for show slave status for channel ? Get a consistant result with a regular show slave status , this issue is also in upstream but to make it harder error number is different

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            Unassigned Unassigned
            stephane@skysql.com VAROQUI Stephane
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