ID requests timeout to idtmsrv process

>>SELECT * FROM l8view15;

• • • ERROR[8448] Unable to access Hbase interface. Call to ExpHbaseInterface::scanOpen returned error HBASE_OPEN_ERROR(-704). Cause:
      java.io.IOException: registerTransaction: IdTm threw exception org.apache.hadoop.hbase.regionserver.transactional.IdTmException: id threw:org.apache.hadoop.hbase.regionserver.transactional.IdTmException: ferr=40
      org.apache.hadoop.hbase.client.transactional.RMInterface.registerTransaction(RMInterface.java:494)
      org.apache.hadoop.hbase.client.transactional.RMInterface.registerTransaction(RMInterface.java:560)
      org.apache.hadoop.hbase.client.transactional.RMInterface.getScanner(RMInterface.java:789)
      org.trafodion.sql.HTableClient.startScan(HTableClient.java:1014)

The issue here is not that the request timed out as is implied by the error 40. Instead the issue is that following the link request to the idtmsrv process XWAIT(LDONE, timeout) is called. LDONE is returned, however the subsequent call to BMSG_LISTEN returns NOWORK instead of LDONE, and we never called BREAK. The code then assumed the request timed out.

The fix is to test to see if NOWORK is returned from BMSG_LISTEN and then retry the XWAIT