RE: Blocking Lock
- From: Hamid Alavi <hamid.alavi@xxxxxxxxxxx>
- To: 'Diego Cutrone' <diegocutrone@xxxxxxxxxxxx>, terrysutton@xxxxxxx, "'Oracle-L (E-mail)" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 17 Sep 2004 11:30:40 -0600
Here is the v$lock, right now we have a blocking lock on the same table for
Insert:
SQL> select * from v$lock where sid=282;
ADDR KADDR SID TY ID1 ID2 LMODE REQUEST
-------- -------- ---------- -- ---------- ---------- ---------- ----------
CTIME BLOCK
---------- ----------
01B5B340 01B5B40C 282 TX 1703961 2763 6 0
8725 1
B1E1D830 B1E1D844 282 TM 19652 0 3 0
8725 0
B1E1D038 B1E1D04C 282 TM 19451 0 3 0
8725 0
ADDR KADDR SID TY ID1 ID2 LMODE REQUEST
-------- -------- ---------- -- ---------- ---------- ---------- ----------
CTIME BLOCK
---------- ----------
B1E1CE58 B1E1CE6C 282 TM 19446 0 3 0
8725 0
B1E1CC78 B1E1CC8C 282 TM 19442 0 3 0
8725 0
B1E1C5E8 B1E1C5FC 282 TM 19443 0 3 0
8725 0
ADDR KADDR SID TY ID1 ID2 LMODE REQUEST
-------- -------- ---------- -- ---------- ---------- ---------- ----------
CTIME BLOCK
---------- ----------
B1E1BD00 B1E1BD14 282 TM 40451 0 3 0
8725 0
B1E19C30 B1E19C44 282 TM 19656 0 3 0
8725 0
B1E17458 B1E1746C 282 TM 19794 0 3 0
8725 0
ADDR KADDR SID TY ID1 ID2 LMODE REQUEST
-------- -------- ---------- -- ---------- ---------- ---------- ----------
CTIME BLOCK
---------- ----------
B1E17200 B1E17214 282 TM 19655 0 3 0
8725 0
B1E17110 B1E17124 282 TM 19777 0 3 0
8725 0
B1E16FA8 B1E16FBC 282 TM 19697 0 3 0
8725 0
ADDR KADDR SID TY ID1 ID2 LMODE REQUEST
-------- -------- ---------- -- ---------- ---------- ---------- ----------
CTIME BLOCK
---------- ----------
B1E16C60 B1E16C74 282 TM 19449 0 3 0
8725 0
13 rows selected.
SQL> select * from v$session_wait where sid=282;
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
282 32391
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
SQL*Net message from client
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
driver id 675562835
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
28444553 #bytes
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
1 00000001
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
0
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
00 -1 8804 WAITED SHORT TIME
SID SEQ#
---------- ----------
EVENT
----------------------------------------------------------------
P1TEXT P1
---------------------------------------------------------------- ----------
P1RAW P2TEXT
-------- ----------------------------------------------------------------
P2 P2RAW
---------- --------
P3TEXT P3
---------------------------------------------------------------- ----------
P3RAW WAIT_TIME SECONDS_IN_WAIT STATE
-------- ---------- --------------- -------------------
-----Original Message-----
From: Diego Cutrone [mailto:diegocutrone@xxxxxxxxxxxx]
Sent: Friday, September 17, 2004 1:11 PM
To: Hamid Alavi; terrysutton@xxxxxxx; 'Oracle-L (E-mail)
Subject: Re: Blocking Lock
Good to know
but what I'd like to know, in order to be able to try to help you out, are
the details of that wait.
Just a select to v$lock when the wait is taking place would work.
Thanks
Diego.
----- Original Message -----
From: "Hamid Alavi" <hamid.alavi@xxxxxxxxxxx>
To: "'Diego Cutrone'" <diegocutrone@xxxxxxxxxxxx>; <terrysutton@xxxxxxx>;
"'Oracle-L (E-mail)" <oracle-l@xxxxxxxxxxxxx>
Sent: Friday, September 17, 2004 9:04 AM
Subject: RE: Blocking Lock
> yes it's "enqueue wait" and the SQL statement is an Insert one record into
a
> table.
>
> -----Original Message-----
> From: Diego Cutrone [mailto:diegocutrone@xxxxxxxxxxxx]
> Sent: Friday, September 17, 2004 12:52 PM
> To: Hamid Alavi; terrysutton@xxxxxxx; 'Oracle-L (E-mail)
> Subject: Re: Blocking Lock
>
>
> Hi Hamid,
>
> Were you able to get the wait event the sessions are waiting on?
> Regarding your comments, most surely it should have been "enqueue wait"
> event, but the interesting thing here should be the details from
> v$session_wait and v$lock views when the wait is taking place.
>
> With that information we may have a better idea of the cause of the wait.
>
> HTH
> Regards
> Diego.
>
>
>
>
> ----- Original Message -----
> From: "Hamid Alavi" <hamid.alavi@xxxxxxxxxxx>
> To: <terrysutton@xxxxxxx>; "'Oracle-L (E-mail)" <oracle-l@xxxxxxxxxxxxx>
> Sent: Friday, September 17, 2004 8:34 AM
> Subject: RE: Blocking Lock
>
>
> > NO we don't have any bitmap index, this is not happen all the times may
> once
> > or twice a day
> >
> > -----Original Message-----
> > From: Terry Sutton [mailto:terrysutton@xxxxxxx]
> > Sent: Thursday, September 16, 2004 9:52 PM
> > To: 'Oracle-L (E-mail)
> > Subject: Re: Blocking Lock
> >
> >
> > Is there a bitmap index on the table being inserted into?
> >
> > ----- Original Message -----
> > We have an application running on Oracle database 8.1.7.4 on sun Solaris
> > 2.8, recently we have some problem with blocking locks one transaction
> > (simple insert statement) blocking all other transactions and waiting
for
> > ever, is there any bug related to this issue announced by oracle.
> > Any Idea appreciated.
> > Thanks,
> >
> >
> > Hamid Alavi
> >
> > Office : 818-737-0526
> > Cell phone : 818-416-5095
> > --
> > //www.freelists.org/webpage/oracle-l
> >
> > --
> > //www.freelists.org/webpage/oracle-l
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> > //www.freelists.org/webpage/oracle-l
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