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861100 wrote:my white car fails to go, but my blue car goes.
Hi support ,
we have an issue here , we have 2 nodes (medi01,medi02) when we try to execute query
on node 1 it's take more time and then there is no result but the same query on node 2 it running fast after killing first one ,
any query that access CALLING table on node 1 it failed but it is normal execution on node 2.
Tell me how to make my white car go.
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okay , oracle 11g.2 asm with rac under rhel 5 2 nodes rac
please tell me if you need more ...
select * from( select CALLINGPARTYNUMBER,CALLEDPARTYNUMBER,CALLSTARTTIME, CALLSTOPTIME,CALLDURATION,CALLCOST,BALANCEBEFORECALL, BONUSCOST,BONUSBALANCEBEFORE from med_view.VU_EPPC_CALLING_DATA where CALLINGPARTYNUMBER in ('07480601376','007480601376','0096407480601376','+96407481416396') order by CALLSTARTTIME desc) where rownum <= 50
yes you are right must be same , but i don't know why when i execute the query on this table specily it not same please see the below :
i run this query on sys user but believe me it not same before 2 hours now both nodes hanging but earlier this query take
5 second but now i don't now why it's hanging , also i create user test and grant select on this table it take more time anything
i will try it on this table it hanging other table under the owner user of this table i can run everything i want , but be informed i just do
compute statistcs and then the connection in disconnected this is under node1 and i connected again i face this problem when i run query
but i try it on node 2 it's fine and execution time is faster , this is from saturday but today i just crontab script that compute statistcs
from 3 pm now it 11 pm till now it's not complete may be this is the problems .....
okay , first i have query this query take time to return the result 18 second , i see the ececution plan for this query
oracle estimated rows return by this query is 23000 but actual data that return is 2200 and i see the last_analyzed of this table is null
so i just plan to gather statistcs on this table vie dba_packages but this take more time and then the vpn is disconnect
and i try more time and also disonnected last the developer team call me he said the app not work (app depend on this query) and
he used ip address on one nodes not SCAN ip i try to explan plan for the query again but it's take more time and i create user and just try to grant on this table
also take more time but the funny part when i connect to second node the same query it executed with 3 second so i just make script and exec vie crontab
to gather statistics vie dbms_packages and now the query it work by both nodes ...
but till now i don't know the root causes of this problem also i open a ticket with oracle and there is no response...