Init parameterOptimizer & SQL

PARALLEL_MAX_SERVERS

What it controls

The most parallel execution processes per instance.

Know this before you change it

Each parallel server is a process, so it counts against PROCESSES.

Check and change it

1-- Current value on every instance2SELECT inst_id, name, value, isdefault, ismodified3FROM gv$parameter4WHERE name = 'parallel_max_servers';5 6-- Value stored in the spfile7SELECT sid, value FROM v$spparameter WHERE name = 'parallel_max_servers' AND isspecified = 'TRUE';8 9-- Dynamic: takes effect now and is kept after a restart10ALTER SYSTEM SET parallel_max_servers = 64 SCOPE = BOTH SID = '*';11 12-- Remove it from the spfile to go back to the default at the next restart13ALTER SYSTEM RESET parallel_max_servers SCOPE = SPFILE SID = '*';

Open in the parameter referenceOracle's reference

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