2051814 - Error filling indexes for InfoCube - BWA

In SAP BW Accelerator (BWA) the filling of indexes for an InfoCube failed with the following error messages:

In Job log for Job BW_TR_RSDDB_BIAINDEX_FILL there is the following message present:

Parallel background process for indexing table '/BIC/ABMM_C03' complete ('1')
Total number of indexed records for table '/BIC/ABMM_C03': '306,147,625'
FILLING_FAILED  >CHECK LOG!!!!!
Job finished

In the Application Log o the InfoCube you can find:

Information@ Prepare Optimize for index '0BW:BIA:BP1:BIC_FZMM_C03' @5F\QNo long text exists@ 16:20:32 04.08.2014
Error@ SUBRC '0', BWA error code '2,982', BWA error text 'A communication error occured, with the TREX TcpIp' @5F\QNo long text exists@ 16:36:18 04.08.2014

SAP NetWeaver BW Accelerator 7.20
SAP NetWeaver BW Accelerator 7.00

BIA, SAP NetWeaver BI Accelerator, TREXADMIN, TREX_ADMIN, error 2982, BITRP_CT, Remote communication failure with Partner, asxml/indexCellTable/HTTP Status 402:Kernel error:ICM_HTTP_TIMEOUT, Parallel indexing process termina, Error during batch parallelization of indexing. ID, big e fact table, indices, sm37, bw_tr_rsddb_biaindex_fill, filling_failed, rsddtrex, code '2,982', trexindexserver.ini, rsddbiamon, batchpara, numproc, pkgsize, 7.00, 7.20, 700, 720 , KBA , BC-TRX-BIA , TREX BI Accelerator , BW-BEX-OT-BIA , BW Accelerator , Problem