TSV_TNEW_OCCURS_NO_ROLL_MEMORY — Internal Table Ran Out Of Roll Memory

This is a resource-shortage runtime error, not a coding-syntax error. TNEW is the internal table management layer under the classic OCCURS-style table implementation. The dump fires when that layer tries to extend a table's storage and the request for additional roll memory (the quota assigned to the current session before the process falls back to extended memory or heap) cannot be satisfied. The table itself is not corrupted and the statement that triggered it is usually syntactically fine; the problem is purely that the requested block of memory does not exist within the limits configured for that work process or session. It differs from TSV_TNEW_PAGE_ALLOC_FAILED, which is the equivalent failure one memory tier up, and from SYSTEM_NO_ROLL, which is about the process's own roll area rather than a specific table's growth.

If the cause is a genuinely runaway internal table, the fix is in the program: add a restrictive WHERE clause, process data in packages using a cursor instead of loading everything at once, delete adjacent duplicates or unneeded rows as soon as possible, and free the table explicitly after use. This requires an ABAP change and a transport, and should be treated as a defect fix, not a workaround. If the cause is a legitimate high-volume job hitting a per-session quota that is genuinely too conservative for the business process, Basis raises the relevant extended memory quota parameter after checking there is real headroom in the system-wide pool; this needs a profile parameter change and usually an instance restart, and should be sized deliberately, not doubled blindly. If heap fallback is disabled for the relevant work process class, Basis enables or raises it, again via profile parameter and restart. If the cause is system-wide memory pressure from concurrent jobs, the fix is scheduling: spread memory-intensive jobs across time windows or job classes rather than changing any limit.

The reflex fix is to raise the extended memory or roll parameter and move on, because the dump looks like a hardware ceiling. This defers the failure to a larger row count without addressing why the table grew that large in the first place. The program keeps its unbounded SELECT or unchecked nested loop, now consumes more of the shared memory pool per execution, and can starve other concurrent sessions instead of dumping cleanly. When data volume grows further, the same dump returns, usually during a peak period, and by then the parameter has already been pushed once and looks like it 'should be enough'.

Enforce restrictive WHERE clauses and package-based processing for any SELECT expected to return large volumes, and require explicit FREE or CLEAR on large internal tables once they are no longer needed. Use code inspector or ABAP Test Cockpit checks that flag unbounded APPEND inside nested loops. Track extended memory trends in ST02 over time rather than only reacting to a dump, and review any batch job whose row counts have grown steadily release over release, since the dump often arrives only after months of quiet growth.

ABAP development owns it when the dump traces to a specific program building an oversized table; that is the majority of cases. Basis owns it only when the ST22 memory summary shows the system-wide pool was already exhausted independent of any single runaway program. The handover note should state the program, table, and row count at failure, the memory figures from the dump, and whether the same job has run without incident at lower volumes.

Sibling memory dumps are TSV_TNEW_PAGE_ALLOC_FAILED, TSV_TNEW_BLOCKS_NO_ROLL_MEMORY, SYSTEM_NO_ROLL and MEMORY_NO_MORE_PAGING, each representing a failure at a different tier of the same roll, extended memory and heap hierarchy. Long-running background jobs that dump this way sometimes also show TIME_OUT on retries once the query is bounded but still slow. The underlying trigger is frequently an unrestricted SELECT, which links this dump to the DBIF_RSQL family when the root problem is traced back to the database access itself.