3633332 - XPRAS_SHD_AIMMERGE error: CX_SHDB_PFW_EXCEPTION(acm_generate,######): Dispatcher Timeout, PFW messages: LIMIT mem_usage_pct: 99 > ## for...

Error in XPRAS_SHD_AIMMERGE phase with exception CX_SHDB_PFW_EXCEPTION(ACM_GENERATE,#####): Dispatcher Timeout: 'PackSel'

SAPup_Console.log:

*Error*

The following errors were detected in the log files:

# Find the detailed information in log 'SAPR758XPRA90000003.S4P':
...
...

A3 EACM 380 "2025-07-16 19:37:49 UTC": More than "75" DCLs to process. Using SHDB parallelization
framework.
A3 EACM 000 "CL_SHDB_PFW_FACTORY=>REGISTER""(APPL_NAME = ACM_GENERATE)"": INSTANCE = 00122"" "
A3EEACM 000 "CX_SHDB_PFW_EXCEPTION(ACM_GENERATE,#####):""Dispatcher Timeout: 'PackSel 1' waited 302
sec for""relieve"" "
A3EEACM 004 "*** NOTE ***" "For CX_SHDB_PFW_EXCEPTIONs with infrastructure" "issues (e.g.
'Dispatcher Timeout')," "choose support component BC-DB-HDB-PFW."

A4 EACM 239 Execution of the 'After Import' for transport request: "SAPK758XPRA90000003" finished
2EEPU133 Errors occurred during post-handling "SACMDT_AFTER_IMP_DCL" for "DCLS" "L"

3 EPU135 "SACMDT_AFTER_IMP_DCL" belongs to package "SACMDT_API"
2EEPU136 The errors affect the following components:
2EEPU137 "BC-SEC-AUT-DCL" ("Data Control Language (DCL) (Define Authorizations")

# Find the detailed information in log 'SAPR758XPRA90000218.S4P':
A3 EACM 381 "2025-07-16 21:41:06 UTC": Less than "75" DCLs to process. No parallelization required.
A4 EACM_SYNTAX 121 &2"2025-07-16 21:41:06 UTC": Generating ABAP artifacts for DCL
&1"AS_ACCESSCONTROLBYUUID" (&3"1"/&4"2")
A4 EACM_SYNTAX 121 &2"2025-07-16 21:41:06 UTC": Generating ABAP artifacts for DCL
&1"DEMO_CDS_PFCG_MAPPING" (&3"2"/&4"2")
A3 EACM 380 "2025-07-16 21:41:06 UTC": More than "75" DCLs to process. Using SHDB parallelization
framework.
A3 EACM 000 "CL_SHDB_PFW_FACTORY=>REGISTER""(APPL_NAME = ACM_GENERATE)"": INSTANCE = 00123"" "
A3EEACM 000 "CX_SHDB_PFW_EXCEPTION(ACM_GENERATE,00123):""Dispatcher Timeout: 'PackSel 1' waited 302
sec for""relieve"" "
A3EEACM 004 "*** NOTE ***" "For CX_SHDB_PFW_EXCEPTIONs with infrastructure" "issues (e.g.
'Dispatcher Timeout')," "choose support component BC-DB-HDB-PFW."

A4 EACM 239 Execution of the 'After Import' for transport request: "SAPK758XPRA90000218" finished
2EEPU133 Errors occurred during post-handling "SACMDT_AFTER_IMP_DCL" for "DCLS" "L"

3 EPU135 "SACMDT_AFTER_IMP_DCL" belongs to package "SACMDT_API"
2EEPU136 The errors affect the following components:
2EEPU137 "BC-SEC-AUT-DCL" ("Data Control Language (DCL) (Define Authorizations")

...skipped 13 more lines.
See log file XPRASUPG.ELG for more information.

In the SHDB PFW support file:

Can see many messages of type:

LIMIT mem_usage_pct: 99 > 95 for <Schema>.<Table>~[0]

or 

LIMIT mem_percentage_for_merge: <current memory usage percentage> > 95 for host: <hostname>, port: <indexserver portnumber>

• Image / Data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.  

SAP HANA DB Parallelization Framework

xpras_shd_aimmerge, cx_shdb_pfw_exception, dispatcher timeout, sap hana, parallelization framework, software update manager, memory limit, delta merges, bc-sec-aut-dcl, sacmdt_after_imp_dcl , KBA , BC-DB-HDB-PFW , SAP HANA Parallelization Framework , Problem