2588229 - SNUM/SNRO: TIME_OUT in SAPMSNUM program

Program "SAPMSNUM" has exceeded the maximum uninterrrupted runtime
and has therefore been terminated.

 Error analysis

After a certain time, the program is terminated in order to free the
workspace for other users. This prevents workspaces from being blocked
unnecessarily, for example by an endless loop (DO, WHILE, ...), by
database accesses where the result set is too large or by database
accessess without a suitable index Index (full table scan).

The maximum runtime of a program is set by system profile parameter
"rdisp/scheduler/prio_[high|normal|low]/max_runtime". The current setting is 600 seconds. Once this limit has been
exceeded, the system attempts to interrupt the SQL statement or to
instruct the ABAP processor to terminate the program. It waits for a
maximum of 60 seconds. If the program is then still active, the work
process is restarted.

Trigger Location of Runtime Error

Program                  SAPMSNUM
[...]

SourceCde

[...]
IF g_first_time = yes.
* delete used buffers from table nrivshadow -------------
SELECT * FROM nrivshadow INTO TABLE lt_nrivshadow
WHERE nrlevel <> 0.
LOOP AT lt_nrivshadow INTO ls_nrivshadow.
IF ls_nrivshadow-nrlevel <> ls_nrivshadow-tonumber.
DELETE lt_nrivshadow.
ENDIF.
ENDLOOP.
IF lines( lt_nrivshadow ) > 0.
DELETE nrivshadow FROM TABLE lt_nrivshadow. "Error happen in this line."
ENDIF.
* screen ------------------------------------------------
tnro-object = space.
CALL 'GET_PARAM_TCOD' ID 'PTCOD' FIELD gv_ptcod. "#EC CI_CCALL
SELECT SINGLE * FROM tstcp
INTO gs_tstcp
WHERE tcode = gv_ptcod.
IF sy-subrc = 0.
CONDENSE gs_tstcp-param NO-GAPS.
IF gs_tstcp-param CS '=' AND gs_tstcp-param CS 'SNUM'.
tnro-object = gs_tstcp-param+18(10).
TRANSLATE tnro-object USING '; '.
ENDIF.
ENDIF.
[...]