Re: Insert running long

400 rows inserted per call, 1.5 seconds per call. Now you need to decide if that's reasonable or not.

So, how many indexes have to be maintained as a row is inserted. Will any (many) of the indexes find that 400 rows inserted turns into 400 different leaf blocks being updated.

How many buffer gets per row, disk_reads per row.

Is there any reason why index UM_DWH_NXT.XIF3MEMBER_BANK_BALANCE stands out so much - what does v$segstat tell you about the work done on that index in an interval. Does the size of the index look unreasonable large for the number of entries it should hold .... etc.

Regards
Jonathan Lewis

------------------ ---------------------
03-MAR-20 00:00:00 10367
04-MAR-20 00:00:00 10479
05-MAR-20 00:00:00 10461
06-MAR-20 00:00:00 10434
07-MAR-20 00:00:00 10418
10-MAR-20 00:00:00 10405
11-MAR-20 00:00:00 10379
12-MAR-20 00:00:00 10294
13-MAR-20 00:00:00 10280
14-MAR-20 00:00:00 10307
17-MAR-20 00:00:00 10354
18-MAR-20 00:00:00 10400
19-MAR-20 00:00:00 10429
20-MAR-20 00:00:00 10481
21-MAR-20 00:00:00 10541
24-MAR-20 00:00:00 10606
25-MAR-20 00:00:00 10640
26-MAR-20 00:00:00 10643
27-MAR-20 00:00:00 10674
28-MAR-20 00:00:00 10717
31-MAR-20 00:00:00 10807

its plain insert -I suspect it is is being done in pl/sql loop row by row processing -

How can I validate it ? ask for the pl/sql procedure and check the code -

this is the insert query -

INSERT INTO MEMBER_BANK_BAL(MEMBER_BANK_BAL_ID,MEM BER_BANK_ID,INTERNAL_ACCT_ID,MEMBER_BANK_BAL_AMT,A CCRUED_INT_AMT,FROM_DT,TO_DT,CREATE_TS,LAST_UPDT_T S,RT_RECRD_NUM,RT_TIER_BAL,BATCH_JOB_EXECUTION_ID) VALUES ( :1, :2, :3, :4, :5, :6, :7, :8, :9, :10 , :11, :12)

Wait events:

bdhulipa_at_ebisprd2>@ash/ashtop event2 sql_id='aqs7g5aj9s44d' sysdate-4/24 sysdate

Total Distinct

Seconds AAS %This EVENT2 FIRST_SEEN LAST_SEEN Execs Seen

• ------- ------- ------------------------------------------ ------------------- ------------------- ----------

14192 1.0 99% | db file sequential read 2020-04-02 04:40:04 2020-04-02 08:40:03 6352

149 .0 1% | ON CPU 2020-04-02 04:41:51 2020-04-02 08:39:30 149 2 .0 0% | enq: FB - contention [mode=6] 2020-04-02 04:51:41 2020-04-02 07:34:04 2

2 .0 0% | gc current multi block request 2020-04-02 08:15:22 2020-04-02 08:15:29 2

1 .0 0% | gc current block 2-way 2020-04-02 07:44:19 2020-04-02 07:44:19 1

1 .0 0% | gc current grant 2-way 2020-04-02 06:32:56 2020-04-02 06:32:56 1

1 .0 0% | local write wait 2020-04-02 08:37:47 2020-04-02 08:37:47 1

It seems like db file sequential reads are generating from Index

bdhulipa_at_ebisprd2>@ash/ashtop objt "sql_id='aqs7g5aj9s44d' and event2='db file sequential read'" sysdate-4/24 sysdate

Total Distinct

Seconds AAS %This OBJT FIRST_SEEN LAST_SEEN Execs Seen

• ------- ------- -------------------------------------------------- ------------------- ------------------- ----------

13854 1.0 100% | UM_DWH_NXT.XIF3MEMBER_BANK_BALANCE [INDEX] 2020-04-02 05:24:16 2020-04-02 09:19:46 8054 4 .0 0% | UM_DWH_NXT.XIF5MEMBER_BANK_BALANCE [INDEX] 2020-04-02 06:22:53 2020-04-02 07:06:51 4 3 .0 0% | UM_DWH_NXT.XPKMEMBER_BANK_BALANCE [INDEX] 2020-04-02 07:12:04 2020-04-02 07:26:29 3 Thanks

Bhavani

--
http://www.freelists.org/webpage/oracle-l








--
http://www.freelists.org/webpage/oracle-l




image/png attachment: image.png