2067719 - Rebuild InfoCube: communication error - BWA

In in SAP BW Accelerator (BWA) an InfoCube cannot be rebuild because a communication error occurs.

The initial filling failed with the following error messages:

In the Application Log of the InfoCube you can find:

L_RETURN_TEXT 400 A communication error occured, with the TREX TcpIp

The BWA indexing aborts in the SPARSE phase

SAP NetWeaver BW Accelerator 7.20

BIA, SAP NetWeaver BI Accelerator, TREXADMIN, TREX_ADMIN, DUMP GET_INDEX_INSERT_ONLY, IBM xSeries 3850X5 Server, Linux paging improvements, ERROR: failed to open channel, reason: connection refused, pingTREXService(indexserver, splitAlgorithm, multiplicator, InfoCube cannot be rebuild because a communication error occurs in SAP BW Accelerator, BW_TR_RSDDB_BIAINDEX_FILL , KBA , BC-TRX-BIA , TREX BI Accelerator , BW-BEX-OT-BIA , BW Accelerator , Problem