Composite running creates performance problems

Hi all

I have a scenario where my soa case are in working order, until the other transaction is completed. Assume that, if a purchase Transaction is blocked for days, composites would be waiting for the answer until he answers. Are these composites running creates impacts on performance, assuming that 100 instances are run daily and all are waiting for the answer.

Two hundred
Knani

As long as your instances are dehydrate while you wait for the answer, you're good.

Tags: Fusion Middleware

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Cluster Wait Time (ms)                            0            N/A     N/A
Application Wait Time (ms)                        0            N/A     N/A
Concurrency Wait Time (ms)                        0            N/A     N/A
Invalidations                                     0            N/A     N/A
Version Count                                     2            N/A     N/A
Sharable Mem(KB)                                 71            N/A     N/A
          -------------------------------------------------------------       

Execution Plan
---------------------------------------------------------------------------------------------------
| Id  | Operation               | Name    | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
---------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT        |         |       |       | 24350 (100)|          |       |       |
|   1 |  SORT GROUP BY          |         |     1 |   731 |            |          |       |       |
|   2 |   PARTITION RANGE SINGLE|         |  8892 |  6347K| 24350   (1)| 00:04:53 |   KEY |   KEY |
|   3 |    PARTITION LIST ALL   |         |  8892 |  6347K| 24350   (1)| 00:04:53 |     1 |     5 |
|   4 |     TABLE ACCESS SAMPLE | PRODUCT |  8892 |  6347K| 24350   (1)| 00:04:53 |   KEY |   KEY |
---------------------------------------------------------------------------------------------------
 


Full SQL Text

SQL ID       SQL Text                                                         
------------ -----------------------------------------------------------------
b7f61g3831mk select /*+ no_parallel(t) no_parallel_index(t) dbms_stats cursor_
             _sharing_exact use_weak_name_resl dynamic_sampling(0) no_monitori
             ng */ count(*), count("P_PRODUCT_ID"), count(distinct "P_PRODUCT_
             ID"), count("NAME"), count(distinct "NAME"), count("DESCRIPTION")
             , count(distinct "DESCRIPTION"), count("UPC"), count(distinct "UP
             C"), count("ADV_PRODUCT_URL"), count(distinct "ADV_PRODUCT_URL"),
              count("IMAGE_URL"), count(distinct "IMAGE_URL"), count("SHIPPING
             _COST"), count(distinct "SHIPPING_COST"), sum(sys_op_opnsize("SHI
             PPING_COST")), substrb(dump(min("SHIPPING_COST"), 16, 0, 32), 1, 
             120), substrb(dump(max("SHIPPING_COST"), 16, 0, 32), 1, 120), cou
             nt("SHIPPING_INFO"), count(distinct "SHIPPING_INFO"), sum(sys_op_
             opnsize("SHIPPING_INFO")), substrb(dump(min(substrb("SHIPPING_INF
             O", 1, 32)), 16, 0, 32), 1, 120), substrb(dump(max(substrb("SHIPP
             ING_INFO", 1, 32)), 16, 0, 32), 1, 120), count("P_STATUS"), count
             (distinct "P_STATUS"), sum(sys_op_opnsize("P_STATUS")), substrb(d
             ump(min(substrb("P_STATUS", 1, 32)), 16, 0, 32), 1, 120), substrb
             (dump(max(substrb("P_STATUS", 1, 32)), 16, 0, 32), 1, 120), count
             ("EXTRA_INFO1"), count(distinct "EXTRA_INFO1"), sum(sys_op_opnsiz
             e("EXTRA_INFO1")), substrb(dump(min(substrb("EXTRA_INFO1", 1, 32)
             ), 16, 0, 32), 1, 120), substrb(dump(max(substrb("EXTRA_INFO1", 1
             , 32)), 16, 0, 32), 1, 120), count("EXTRA_INFO2"), count(distinct
              "EXTRA_INFO2"), sum(sys_op_opnsize("EXTRA_INFO2")), substrb(dump
             (min(substrb("EXTRA_INFO2", 1, 32)), 16, 0, 32), 1, 120), substrb
             (dump(max(substrb("EXTRA_INFO2", 1, 32)), 16, 0, 32), 1, 120), co
             unt("ANALISIS_DATE"), count(distinct "ANALISIS_DATE"), substrb(du
             mp(min("ANALISIS_DATE"), 16, 0, 32), 1, 120), substrb(dump(max("A
             NALISIS_DATE"), 16, 0, 32), 1, 120), count("OLD_STATUS"), count(d
             istinct "OLD_STATUS"), sum(sys_op_opnsize("OLD_STATUS")), substrb
             (dump(min("OLD_STATUS"), 16, 0, 32), 1, 120), substrb(dump(max("O
             LD_STATUS"), 16, 0, 32), 1, 120) from "PARTNER_PRODUCTS"."PRODUCT
             " sample ( 12.5975349658) t where TBL$OR$IDX$PART$NUM("PARTNER_PR
             ODUCTS"."PRODUCT", 0, 4, 0, "ROWID") = :objn
            

    Dear friend,

    Why do you think you have problems with shared pool? In the ASH report you are provided, there was just 2.5 medium active sessions and 170 requests during this period, he is very low with swimming pool shared, problems
    you have some queries that use literals, it will be better to replace literals with bind variable if possible, or you can set the init cursor_sharing parameter to force or similar, this is the dynamic parameter.
    But it is not so dramatic problem in your case!

    From ASHES of your report, we can see that top wait events is "CPU + wait for CPU", "RMAN backup & recovery i/o" and "log file sync" and 65% of your database of waiting time. And even in the background waiting events.
    If I understand well report, you have two members in your redo log groups, you have problems with log IO writer speed, check the distribution of files on the disc, newspaper editor is slow causing it to wait for the other sessions. High
    processor can be related to rman compression. Best service can we sea GATHER_STATS_JOB consumes 16% of activity 33% consumes rman and only 21% your applications and also there is something running
    SQL * more under the sys (?) account. There is from the top of the sql page, this is the sql in your application, if I understand correctly, 'scattered db reading file' event indicates that full scans have a place, is it normal that your application? If Yes, then try using
    running in parallel, as we can see in the section "Sessions running PQs Top" your report there is no running in parallel, but as I understand it there are 8 processors, try to use parallel executions or avoid full scans. But consider that
    When you do full scans in parallel PGA memory not used CMS, then decrees setting pga_aggregate_target SGA and increase respectively.

    Is there another application or a program running on the server except oracle?
    Is the performance degradation was strong, I mean yesterday, everything was ok, but today all the evil, or it was good?

    Check the reasons for the slow newspaper writer, it can greatly affect performance.
    Also of 90% of the performance problems generally because of the poor sql, poor execution plans.
    Also if you use automatic memory management, tap Settings, but you must know that in this case the settings will identify the minimum values, this is why define them to lower values in oracle can manage
    entirely.
    Don't increase your SGA at this stage, get the awr report, use @$ORACLE_HOME/rdbms/admin/awrrpt.sql, check your cover shot.

    BUT first, you must change your backup strategy, look at my first post, after that check performance again, before you do that it will be very difficult to help you.

    Good luck

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