ORA-01652 unable to extend temp segment in 11gR2 with ASM and 2 node RAC

Question

Hi ,
I have a 11.2.0.1 system with 2 node RAC and ASM . We are hitting ORA-01652 very frequently
and I can see space is available in TEMP .
CREATE TEMPORARY TABLESPACE "TEMP" TEMPFILE
SIZE 21474836480,
SIZE 137437904896
AUTOEXTEND ON NEXT 655360 MAXSIZE 131071M ( Will the next size ignored as the extent size is 1MB ?)
EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1048576
And during the failure
SELECT tablespace_name,
total_blocks,
used_blocks,
free_blocks,
total_blocks*32768/1024/1024 as total_MB,
used_blocks*32768/1024/1024 as used_MB,
free_blocks*32768/1024/1024 as free_MB
FROM gv$sort_segment;
TABLESPACE_NAME TOTAL_BLOCKS USED_BLOCKS FREE_BLOCKS TOTAL_MB USED_MB FREE_MB
TEMP 4849568 2385728 2463840 151549 74554 76995
TEMP 0 0 0 0 0 0
Also when I checked from v$sort_usage I see only two session consuming space
SQL> SELECT b.tablespace tablespace,
2 -- b.segfile#,
3 -- b.segblk#,
4 b.blocks,
5 b.blocks * (SELECT value FROM v$parameter WHERE name = 'db_block_size')/1024/1024 bytes,
6 a.sid,
7 a.username username,
8 a.osuser osuser,
9 a.inst_id,a.sid,a.serial#,a.module
10 FROM gv$session a, gv$sort_usage b
11 WHERE a.saddr = b.session_addr and
12 b.blocks != 16 and
13 a.inst_id = b.inst_id
14 ORDER BY b.tablespace, b.blocks, bytes desc;
BLOCKS BYTES SID USERNAME OSUSER INST_ID SID SERIAL# MODULE
1,192,864 37277 381 CN obiqb 2 381 860 nqsserver@icmqapp01cdp (TNS V1
1,192,864 37277 3952 CN obiqb 2 3952 1374 nqsserver@icmqapp01cdp (TNS V1
2,385,728 74554 (mb)
Wat is causing the 1652 ?

Answer 1

877394 wrote:
Thanks Srini,
But I did try all that notes with no luck .
I have a temporary tablespace with 150gb (130+20) datafiles .
TABLESPACE_NAME FILE_NAME (BYTES/1024/1024)
TEMP +DATA_01/tempfile/temp.314.743964            131071
TEMP +DATA_01/tempfile/temp.312.757303             20480
and the DDL is
CREATE TEMPORARY TABLESPACE "TEMP" TEMPFILE
SIZE 21474836480,
SIZE 137437904896
AUTOEXTEND ON NEXT 655360 MAXSIZE 131071M
EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1048576
And on querying v$sort_usage
SQL> SELECT b.tablespace tablespace,
2 -- b.segfile#,
3 -- b.segblk#,
4 b.blocks,
5 b.blocks * (SELECT value FROM v$parameter WHERE name = 'db_block_size')/1024/1024 bytes,
6 a.sid,
7 a.username username,
8 a.osuser osuser,
9 a.inst_id,a.sid,a.serial#,a.module
10 FROM gv$session a, gv$sort_usage b
11 WHERE a.saddr = b.session_addr and
12 b.blocks != 16 and
13 a.inst_id = b.inst_id
14 ORDER BY b.tablespace, b.blocks, bytes desc;
TABLESPACE BLOCKS BYTES SID OSUSER INST_ID SID SERIAL# MODULE
TEMP 63,328 1,979 3952 CN 2 3952 1374
TEMP 84,384 2,637 381 CN 2 381 860
TEMP 433,184 13,537 381 CN 2 381 860
TEMP 1,117,728 34,929 3952 CN 2 3952 1374
sum 1,698,624 53,082 (mb)
So the space utilization was less than 150gb and on querying v$sort_Segment
SQL> SELECT tablespace_name,
total_blocks,
used_blocks,
free_blocks,
total_blocks*32768/1024/1024 as total_MB,
used_blocks*32768/1024/1024 as used_MB,
free_blocks*32768/1024/1024 as free_MB
FROM gv$sort_segment;
TABLESPACE_NAME TOTAL_BLOCKS USED_BLOCKS FREE_BLOCKS TOTAL_MB USED_MB FREE_MB inst
TEMP 4849568 2311104 2538464 151549 72222 79327 2
TEMP 0 0 0 0 0 0 1
why for inst 1 it is showing 0 (which means no sort is happening in instance 1)
But still we got the error
ORA-1652: unable to extend temp segment by 32 in tablespace TEMP
01652, 00000, "unable to extend temp segment by %s in tablespace %s"
// *Cause:  Failed to allocate an extent of the required number of blocks for
//          a temporary segment in the tablespace indicated.
// *Action: Use ALTER TABLESPACE ADD DATAFILE statement to add one or more
//          files to the tablespace indicated.