RE: external table access hangs
- From: "Herring Dave - dherri" <Dave.Herring@xxxxxxxxxx>
- To: "Mladen Gogala" <mgogala@xxxxxxxxxxx>
- Date: Tue, 27 Feb 2007 06:19:18 -0600
Mladen,
V$SESSION_WAIT shows the following:
SID SEQ# EVENT
------------------ ------------------
----------------------------------------------------------------
P1TEXT
P1 P1RAW
----------------------------------------------------------------
------------------ ----------------
P2TEXT
P2 P2RAW
----------------------------------------------------------------
------------------ ----------------
P3TEXT
P3 P3RAW WAIT_TIME
----------------------------------------------------------------
------------------ ---------------- ------------------
SECONDS_IN_WAIT STATE
------------------ -------------------
212 123 db file sequential read
file#
1 0000000000000001
block#
2300 00000000000008FC
blocks
1 0000000000000001 1
197 WAITED KNOWN TIME
file#1 is /u02/oradata/ntrndb1/system01.dbf, which matches the output I
gave from event 10046 where it appears to be waiting on the query:
SELECT PATH, READ, WRITE FROM LOADER_DIR_OBJS WHERE NAME =
'COLLECT_DATA_DIR';
I can run this query interactively and it returns immediately.
As for "hang" being in question, from a front-end the process does hang,
as in performs no noticable work. From the O/S level, I see the
associated Oracle process consume considerable amounts of CPU, grabbing
95%+ on the CPU its assigned to.
And no, I have not opened an SR with Oracle yet. I was hoping that
perhaps someone on this list might have run into something similar and
provide would be willing to share.
Dave
___________________________________
David C. Herring, DBA | A c x i o m Delivery Center Organization
630-944-4762 office | 630-430-5988 wireless | 630-944-4989 fax
> -----Original Message-----
> From: Mladen Gogala [mailto:mgogala@xxxxxxxxxxx]
> Sent: Monday, February 26, 2007 10:02 PM
> To: Herring Dave - dherri
> Cc: rjamya; oracle-l@xxxxxxxxxxxxx
> Subject: Re: external table access hangs
>
> On 02/26/2007 12:20:07 PM, Herring Dave - dherri wrote:
> > Nothing in bad or discard file. This is all that's in the logfile:
>
> Ok. What does "hang" really mean? What does V$SESSION_WAIT say?
> Did you locate the accessing process? Did you try with strace/truss?
> Did you try dumping process and system states and ask Oracle Corp. to
> investigate, the process known as "opening a TAR"? When you say that
> process hangs, does it look like this?
>
> --
> Mladen Gogala
> http://www.mladen-gogala.com
***************************************************************************
The information contained in this communication is confidential, is
intended only for the use of the recipient named above, and may be legally
privileged.
If the reader of this message is not the intended recipient, you are
hereby notified that any dissemination, distribution or copying of this
communication is strictly prohibited.
If you have received this communication in error, please resend this
communication to the sender and delete the original message or any copy
of it from your computer system.
Thank You.
****************************************************************************
--
//www.freelists.org/webpage/oracle-l
Other related posts:
