I have encountered a very strange feature and wondering if anyone has experienced this.
Tracing was enabled for “ORA-01652: unable to extend temp segment” using alter system set events ‘1652 trace name errorstack level 1’;.
The tablespace is configured to autotextend by 64MB with max size 31GB and currently has 4MB Free.
“create index x on abc(txt) tablespace users;” failed with ORA-01652: unable to extend temp segment by 128 in tablespace USERS.
I understand objects are first created as temporary segments in USERS tablespace and this does not occur if there is no tracing enable for event 1652.
Any ideas or explanations?
ARROW:(MDINH@hawklas):PRIMARY> alter database datafile 4 autoextend on next 64m;
Database altered.
ARROW:(MDINH@hawklas):PRIMARY> @check_tbs.sql
ARROW:(MDINH@hawklas):PRIMARY> set lines 200 echo on
ARROW:(MDINH@hawklas):PRIMARY> col file_name for a55
ARROW:(MDINH@hawklas):PRIMARY> col segment_name for a30
ARROW:(MDINH@hawklas):PRIMARY> col partition_name for a30
ARROW:(MDINH@hawklas):PRIMARY> col segment_type for a18
ARROW:(MDINH@hawklas):PRIMARY> select extent_management, allocation_type, segment_space_management,
2 initial_extent, next_extent, pct_increase
3 from dba_tablespaces
4 where tablespace_name=UPPER('&&tbs')
5 ;
EXTENT_MAN ALLOCATIO SEGMEN INITIAL_EXTENT NEXT_EXTENT PCT_INCREASE
---------- --------- ------ -------------- ----------- ------------
LOCAL SYSTEM AUTO 65536
ARROW:(MDINH@hawklas):PRIMARY> select tablespace_name, file_id, file_name, bytes/1024/1024 mb, autoextensible, maxbytes/1024/1024/1024 max_gb
2 from dba_data_files
3 where tablespace_name=UPPER('&&tbs')
4 ;
TABLESPACE_NAME FILE_ID FILE_NAME MB AUT MAX_GB
------------------------------ ---------- ------------------------------------------------------- ---------- --- ----------
USERS 4 /oradata/HAWKLAS/datafile/o1_mf_users_c7120bbr_.dbf 160 YES 31.9999847
ARROW:(MDINH@hawklas):PRIMARY> select max(bytes)/1024/1024 max_free_mb, sum(bytes)/1024/1024 total_free_mb, count(*)
2 from dba_free_space
3 where tablespace_name=UPPER('&&tbs')
4 ;
MAX_FREE_MB TOTAL_FREE_MB COUNT(*)
----------- ------------- ----------
4 6 7
ARROW:(MDINH@hawklas):PRIMARY> select segment_type, segment_subtype, max(initial_extent), max(next_extent)
2 from dba_segments
3 where tablespace_name=UPPER('&&tbs')
4 group by segment_type, segment_subtype
5 ;
SEGMENT_TYPE SEGMENT_SU MAX(INITIAL_EXTENT) MAX(NEXT_EXTENT)
------------------ ---------- ------------------- ----------------
INDEX ASSM 65536 1048576
LOBSEGMENT ASSM 65536 1048576
LOBINDEX ASSM 65536 1048576
TABLE ASSM 94371840 1048576
ARROW:(MDINH@hawklas):PRIMARY> ALTER SESSION SET TRACEFILE_IDENTIFIER = "mdinh_test2";
Session altered.
ARROW:(MDINH@hawklas):PRIMARY> alter system set events '1652 trace name errorstack level 1';
System altered.
ARROW:(MDINH@hawklas):PRIMARY> create index x on abc(txt) tablespace users;
^Ccreate index x on abc(txt) tablespace users
*
ERROR at line 1:
ORA-01013: user requested cancel of current operation
ARROW:(MDINH@hawklas):PRIMARY> alter database datafile
2 '/oradata/HAWKLAS/datafile/o1_mf_users_c7120bbr_.dbf' resize 160m;
Database altered.
ARROW:(MDINH@hawklas):PRIMARY>
oracle@arrow:hawklas:/u01/app/oracle/diag/rdbms/hawklas/hawklas/trace $ tail -20 alert_hawklas.log Current log# 3 seq# 75 mem# 0: /oradata/HAWKLAS/onlinelog/o1_mf_3_c7129gc8_.log Current log# 3 seq# 75 mem# 1: /oradata/fra/HAWKLAS/onlinelog/o1_mf_3_c7129go4_.log Wed Jan 06 15:27:16 2016 Archived Log entry 4037 added for thread 1 sequence 74 ID 0xbc2f7b69 dest 1: Wed Jan 06 15:46:41 2016 OS Pid: 3999 executed alter system set events '1652 trace name errorstack level 1' Wed Jan 06 15:47:08 2016 Errors in file /u01/app/oracle/diag/rdbms/hawklas/hawklas/trace/hawklas_ora_3999_mdinh_test2.trc: ORA-01652: unable to extend temp segment by 128 in tablespace USERS Wed Jan 06 15:50:09 2016 Thread 1 advanced to log sequence 76 (LGWR switch) Current log# 1 seq# 76 mem# 0: /oradata/HAWKLAS/onlinelog/o1_mf_1_c7128lk6_.log Current log# 1 seq# 76 mem# 1: /oradata/fra/HAWKLAS/onlinelog/o1_mf_1_c7128lvc_.log Wed Jan 06 15:50:16 2016 Archived Log entry 4038 added for thread 1 sequence 75 ID 0xbc2f7b69 dest 1: Wed Jan 06 15:51:01 2016 alter database datafile '/oradata/HAWKLAS/datafile/o1_mf_users_c7120bbr_.dbf' resize 160m Completed: alter database datafile '/oradata/HAWKLAS/datafile/o1_mf_users_c7120bbr_.dbf' resize 160m oracle@arrow:hawklas:/u01/app/oracle/diag/rdbms/hawklas/hawklas/trace $
Updated Jan 07, 2016 based on comments.
There are sufficient space from the OS.
Size of the table is 96MB and size of the created index is 104MB
From the alert log, the ORA-01652 did not occur if tracing is turned off for the event – alter system set events ‘1652 trace name errorstack off’;
ARROW:(MDINH@hawklas):PRIMARY> @check_tbs.sql
ARROW:(MDINH@hawklas):PRIMARY> col file_name for a55
ARROW:(MDINH@hawklas):PRIMARY> col segment_name for a30
ARROW:(MDINH@hawklas):PRIMARY> col partition_name for a30
ARROW:(MDINH@hawklas):PRIMARY> col segment_type for a18
ARROW:(MDINH@hawklas):PRIMARY> select extent_management, allocation_type, segment_space_management,
2 initial_extent, next_extent, pct_increase
3 from dba_tablespaces
4 where tablespace_name=UPPER('&&tbs')
5 ;
Enter value for tbs: users
EXTENT_MAN ALLOCATIO SEGMEN INITIAL_EXTENT NEXT_EXTENT PCT_INCREASE
---------- --------- ------ -------------- ----------- ------------
LOCAL SYSTEM AUTO 65536
ARROW:(MDINH@hawklas):PRIMARY> select tablespace_name, file_id, file_name, bytes/1024/1024 mb, autoextensible, maxbytes/1024/1024/1024 max_gb
2 from dba_data_files
3 where tablespace_name=UPPER('&&tbs')
4 ;
TABLESPACE_NAME FILE_ID FILE_NAME MB AUT MAX_GB
------------------------------ ---------- ------------------------------------------------------- ---------- --- ----------
USERS 4 /oradata/HAWKLAS/datafile/o1_mf_users_c7120bbr_.dbf 160 YES 31.9999847
ARROW:(MDINH@hawklas):PRIMARY> select max(bytes)/1024/1024 max_free_mb, sum(bytes)/1024/1024 total_free_mb, count(*)
2 from dba_free_space
3 where tablespace_name=UPPER('&&tbs')
4 ;
MAX_FREE_MB TOTAL_FREE_MB COUNT(*)
----------- ------------- ----------
4 6 7
ARROW:(MDINH@hawklas):PRIMARY> select segment_type, segment_subtype, max(initial_extent), max(next_extent)
2 from dba_segments
3 where tablespace_name=UPPER('&&tbs')
4 group by segment_type, segment_subtype
5 ;
SEGMENT_TYPE SEGMENT_SU MAX(INITIAL_EXTENT) MAX(NEXT_EXTENT)
------------------ ---------- ------------------- ----------------
INDEX ASSM 65536 1048576
LOBSEGMENT ASSM 65536 1048576
LOBINDEX ASSM 65536 1048576
TABLE ASSM 94371840 1048576
ARROW:(MDINH@hawklas):PRIMARY> select sum(bytes)/1024/1024 from dba_segments where segment_name='ABC';
SUM(BYTES)/1024/1024
--------------------
96
ARROW:(MDINH@hawklas):PRIMARY> !df -h /oradata
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg01-LogVol01
59G 35G 22G 62% /
ARROW:(MDINH@hawklas):PRIMARY> alter system set events '1652 trace name errorstack off';
System altered.
ARROW:(MDINH@hawklas):PRIMARY> create index x on abc(txt) tablespace users;
Index created.
ARROW:(MDINH@hawklas):PRIMARY> @check_tbs.sql
ARROW:(MDINH@hawklas):PRIMARY> set lines 200 echo on
ARROW:(MDINH@hawklas):PRIMARY> col file_name for a55
ARROW:(MDINH@hawklas):PRIMARY> col segment_name for a30
ARROW:(MDINH@hawklas):PRIMARY> col partition_name for a30
ARROW:(MDINH@hawklas):PRIMARY> col segment_type for a18
ARROW:(MDINH@hawklas):PRIMARY> select extent_management, allocation_type, segment_space_management,
2 initial_extent, next_extent, pct_increase
3 from dba_tablespaces
4 where tablespace_name=UPPER('&&tbs')
5 ;
EXTENT_MAN ALLOCATIO SEGMEN INITIAL_EXTENT NEXT_EXTENT PCT_INCREASE
---------- --------- ------ -------------- ----------- ------------
LOCAL SYSTEM AUTO 65536
ARROW:(MDINH@hawklas):PRIMARY> select tablespace_name, file_id, file_name, bytes/1024/1024 mb, autoextensible, maxbytes/1024/1024/1024 max_gb
2 from dba_data_files
3 where tablespace_name=UPPER('&&tbs')
4 ;
TABLESPACE_NAME FILE_ID FILE_NAME MB AUT MAX_GB
------------------------------ ---------- ------------------------------------------------------- ---------- --- ----------
USERS 4 /oradata/HAWKLAS/datafile/o1_mf_users_c7120bbr_.dbf 288 YES 31.9999847
ARROW:(MDINH@hawklas):PRIMARY> select max(bytes)/1024/1024 max_free_mb, sum(bytes)/1024/1024 total_free_mb, count(*)
2 from dba_free_space
3 where tablespace_name=UPPER('&&tbs')
4 ;
MAX_FREE_MB TOTAL_FREE_MB COUNT(*)
----------- ------------- ----------
29 30 5
ARROW:(MDINH@hawklas):PRIMARY> select segment_type, segment_subtype, max(initial_extent), max(next_extent)
2 from dba_segments
3 where tablespace_name=UPPER('&&tbs')
4 group by segment_type, segment_subtype
5 ;
SEGMENT_TYPE SEGMENT_SU MAX(INITIAL_EXTENT) MAX(NEXT_EXTENT)
------------------ ---------- ------------------- ----------------
INDEX ASSM 65536 1048576
LOBSEGMENT ASSM 65536 1048576
LOBINDEX ASSM 65536 1048576
TABLE ASSM 94371840 1048576
ARROW:(MDINH@hawklas):PRIMARY> select sum(bytes)/1024/1024 from dba_segments where segment_name='ABC';
SUM(BYTES)/1024/1024
--------------------
96
ARROW:(MDINH@hawklas):PRIMARY> select sum(bytes)/1024/1024 from dba_segments where segment_name='X';
SUM(BYTES)/1024/1024
--------------------
104
ARROW:(MDINH@hawklas):PRIMARY>
oracle@arrow:hawklas:/u01/app/oracle/diag/rdbms/hawklas/hawklas/trace $ tailf alert_hawklas.log Thu Jan 07 13:34:50 2016 Starting background process CJQ0 Thu Jan 07 13:34:51 2016 CJQ0 started with pid=26, OS id=3088 Thu Jan 07 13:37:28 2016 OS Pid: 3097 executed alter system set events '1652 trace name errorstack off' Thu Jan 07 13:37:59 2016 Starting background process SMCO Thu Jan 07 13:37:59 2016 SMCO started with pid=24, OS id=3101 Thu Jan 07 13:41:03 2016 Thread 1 advanced to log sequence 78 (LGWR switch) Current log# 3 seq# 78 mem# 0: /oradata/HAWKLAS/onlinelog/o1_mf_3_c7129gc8_.log Current log# 3 seq# 78 mem# 1: /oradata/fra/HAWKLAS/onlinelog/o1_mf_3_c7129go4_.log Thu Jan 07 13:41:10 2016 Archived Log entry 4040 added for thread 1 sequence 77 ID 0xbc2f7b69 dest 1:
