2490045 - SUM DMO: EU_CLONE_MIG_DT_RUN phase - error during conversion of cluster item

During upgrade using SUM DMO option in SUBMOD_MIG_DOWNTIME_RUN/EU_CLONE_MIG_DT_RUN phase ends with below error.

Tables which can be affected and have already been seen in connection with this error are:  CDCLS, DOKCLU, RFBLG, KOCLU, EDI40, REGUC, KONV in general all of the SAP cluster tables are candidates.

Directory:    <DIR_PUT>/SUM/abap/log
Name:         EUMIGRATEDTRUN.log

4EETQ105 Further processes can't be started due to 2 failed ones, so stopping!
1 ETQ000 ==================================================
2 ETQ102 Finished execution of 4 process(es).
2 ETQ108 Analyzing logs for errors.
3 ETQ114 Analyzed 4 log files.
2EETQ109 Found 4 errors in logs and 0 missing logs.
2EETQ106 2 processes failed.
1EETQ399 Export task 'migrate_dt/MIGRATE_DT_00001_EXP.CMD' has errors, exit code 2. Check 'migrate_dt/MIGRATE_DT_00001_EXP.LOG'.
1EETQ399 Import task 'migrate_dt/MIGRATE_DT_00001_IMP.CMD' has errors, exit code 2. Check 'migrate_dt/MIGRATE_DT_00001_IMP.LOG'.
1EETQ399 Export task 'migrate_dt/MIGRATE_DT_00040_EDI40_EXP.CMD' has errors, exit code 2. Check 'migrate_dt/MIGRATE_DT_000XX_EDI40_EXP.LOG'.
1EETQ399 Import task 'migrate_dt/MIGRATE_DT_00040_EDI40_IMP.CMD' has errors, exit code 2. Check 'migrate_dt/MIGRATE_DT_000XX_EDI40_IMP.LOG'.
1EETQ399 Finished execution of buckets with rc = 7.
1 ETQ000 ==================================================
3 ETQ399 Threshold for statistics and duration file: 300 sec import/export time
2 ETQ399 Total import time: 0:19, maximum run time: 0:10.
2 ETQ399 Total export time: 0:24, maximum run time: 0:13.
2 ETQ399 Average exp/imp/total load: 1.8/0.9/2.8 of 40 processes.
2 ETQ399 Summary (export+import): time elapsed 0:13, total size 4619 MB, 355.31 MB/sec (1279.11 GB/hour).
3 ETQ399 Bucket evaluation, sorted for decreasing import speed.
1EETQ399 Last error code set is: Found 7 aborted processes/errors in log files.
Found 2 failed export processes
Found 2 failed import processes
1EETQ203 Upgrade phase "EU_CLONE_MIG_DT_RUN" aborted with errors

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MIGRATE_DT_000XX_RFBLG_IMP.LOG:

(BLD) INFO: kernel release 745 [UNICODE]
(BLD) INFO: data format 1.10
(BLD) INFO: patch number 400
((LOG) INFO: log format: classic
(DB) INFO: Connected to DB
(HDB) INFO: HANA Kernel version 1.00.122.09.1493036600         
(HDB) INFO:                     SQLDBC 1.00.102.04.1453734118  
(MIG) INFO: (GSI) vname    = 'HDB'
(MIG) INFO: (GSI) release  = '1'
(MIG) INFO: (GSI) version  = '7'
(MIG) INFO: (GSI) machine  = '00CFE2AF4C00'
(HDB) INFO: Loading data in table "RFBLG" with DBSL
(IMP) INFO: Starting import for object "RFBLG" of type
(HDB) INFO: RFBLG deleted/truncated
(HDB) INFO: BSET deleted/truncated
(HDB) INFO: BSES deleted/truncated
(HDB) INFO: BSEG deleted/truncated
(HDB) INFO: BSED deleted/truncated
(HDB) INFO: BSEC deleted/truncated
myCluster (255.11.Imp): 8763: premature end of cluster item encountered.
myCluster (255.11.Imp): 8765: deviation detected in key field 3 of 4.
myCluster (255.11.Imp): 8766: page last read : #0.
myCluster (255.11.Imp): 7955: missing physical pages (pgs rem = 1).
myCluster (255.11.Imp): 6444: decompression of cluster item failed.
myCluster (255.11.Imp): 6454: received return code 2 from G_deca.
myCluster (255.11.Imp): 4427: received return code 2 from decompression routine.
myCluster (255.11.Imp): 3304: failed to unpack cluster item.
myCluster: RFBLG      **010****6231****8404022524****2013**
myCluster (255.11.Imp): 572: error during conversion of cluster item.
myCluster (255.11.Imp): 575: affected physical table is RFBLG.
(CNV) ERROR: data conversion failed.  rc = 2
(IMP) ERROR:
(IMP) ERROR: Aborting job, because data import task has failed while running over socket/pipe
(IMP) ERROR:    (we will not be able to recover from the consequent 'out-of-sync' error)
(IMP) ERROR:

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SAP ERP, SAP NETWEAVER, DMO

SUM, DMO, KOCLU, EDI40, REGUC, KONV, CDCLS, DOKCLU upgrade, HANA, conversion, cluster, Oracle, migration. , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem