What might be 'parallel queries alarm firmware' Star?

Our database of production with the projector of the analysis, discovered us the alarm 'parallel firmware of queries.

As far as I understand it, this means that a query that is supposed to work in parallel using multiple PQ (parallel query servers) must be serialized by the absence of PQ.

But the parallel server is disabled:

< police = "Courier New" > < pre >
SQL > show the parallel parameter

< b > NAME < /b > VALUE TYPE
fast_start_parallel_rollback string LOW
parallel_adaptive_multi_user Boolean TRUE
parallel_automatic_tuning boolean FALSE
whole parallel_execution_message_size 2152
parallel_instance_group string
PARALLEL_MAX_SERVERS integer 8
parallel_min_percent integer 0
parallel_min_servers integer 0
< b > < color = "#FF0000" > parallel_server boolean FALSE < / police > < / b >
parallel_server_instances integer 1
parallel_threads_per_cpu integer 2
recovery_parallelism integer 0
< / pre > < / make >

That should be enough, but in addition, we have no tables with degree > 1:

< police = "Courier New" > < pre >
SQL > select the owner, table_name from dba_tables where degree > 1;
no selected line
< / pre > < / make >

And not just any what session level parallelism.

Our database is enterprise Oracle 10.2.0.5 on Solaris 10

I have 2 questions:

(1) does anyone know what causes the increase of Spotlight these alarm? ... maybe a confusion of Spotlight?

(2) how can I find this information (downgraded to parallel queries) through SQL in the views v$ performance?

Thanks in advance
Alfonso

Alfonso Vicente wrote:
based on decommissioning operations, do you think we should parallel_automatic_tuning set to TRUE and the parallel_execution_message_size?

Alfonso,

These statistics show that some queries running on your database are not able to use the required level of parallelism - that's all. Since you have PARALLEL_MAX_SERVERS = 8, this means that even a single session executes a query with DOP > 8 (or 4 > in the case of redistribution of data) is inevitably to be decommissioned. It is bad or not and if it requires a few changes to the DB settings or not, depends only on your queries and how well their execution times are right now and you need some improvements or not.

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  • error occurs, DMM software repair, error goes far - rinse and repeat

    This error first happened early last year, then it took place last month and now he's out twice this week.  What could cause a missing library repeatedly disappear? The error is in TestStand, but originally in in LabVIEW: I don't remember not what I