Skip to main content

SPACE IS NOT GETTING RELEASED AFTER DROPPING DATA FILES IN LINUX MACHINE.



Please see below ...


We have encountered the below situation many times.

The space is not getting released after dropping the data files in LINUX machine.

 SQL> drop user TMP561 cascade;

SQL> drop tablespace TMP561 including contents and datafiles;

Note: The schema size is around 300Gig. And its having 11 datafiles each  data-file 30G.

But after dropping the User/Tbs. Space is not reclaimed in the Server.

SOLUTION:

 After dropping the datafiles still one process is holding these files. Check like below
oracle@/oracle/tmp: /usr/sbin/lsof |grep deleted |grep TMP*

oracle    13683    oracle   17u      REG             253,16 33286004736   40550413 /user/TMP/TMP561_01.dbf (deleted)
oracle    13683    oracle   18u      REG             253,16 33286004736   40550414 /user/TMP/TMP561_02.dbf (deleted)
oracle    13683    oracle   20u      REG             253,16 32212262912  206487553 /user/TMP/TMP561_03.dbf (deleted)
oracle    13683    oracle   21u      REG             253,16 28183633920   40566785 /user/TMP/TMP561_04.dbf (deleted)
oracle    13683    oracle   22u      REG             253,16 24587214848  302956545 /user/TMP/TMP561_05.dbf (deleted)
oracle    25070    oracle   16u      REG             253,16 33286004736   40550413 /user/TMP/TMP561_06.dbf (deleted)
oracle    25070    oracle   17u      REG             253,16 33286004736   40550414 /user/TMP/TMP561_07.dbf (deleted)
oracle    25070    oracle   19u      REG             253,16 32212262912  206487553 /user/TMP/TMP561_08.dbf (deleted)
oracle    25070    oracle   20u      REG             253,16 28183633920   40566785 /user/TMP/TMP561_09.dbf (deleted)
oracle    25070    oracle   21u      REG             253,16 24587214848  302956545 /user/TMP/TMP561_10.dbf (deleted)

oracle    25070    oracle   21u      REG             253,16 24587214848  302956545 /user/TMP/TMP561_11.dbf (deleted)

 The marked processes are still holding these datafiles. 

 Kill those processes to re-claim the space in the server.

 oracle@kill -9  13683

 oracle@kill -9  25070

 Alert Log shows like below:

 oracle@ tail -f alert_HGU11.log
Immediate Kill Session: sess: 0x9ff8f060  OS pid: 13683
Thu Jan 15 22:51:11 PST 2015
Process OS id : 13683 alive after kill
Errors in file
Thu Jan 15 22:53:54 PST 2015
Immediate Kill Session#: 158, Serial#: 10
Immediate Kill Session: sess: 0x9ff8f060  OS pid: 13683
Thu Jan 15 22:53:55 PST 2015
Process OS id : 13683 alive after kill

 SOLUTION 2:
Another way is to RESTART the database. To reclaim the space in the server.
Thank You!





Comments

Post a Comment

Popular posts from this blog

CHANGING DBID FOR ORACLE DATABASE 11G

C:\Users\computer>sqlplus SQL*Plus: Release 11.1.0.7.0 - Production on Thu Sep 10 21:03:33 2013 Copyright (c) 1982, 2008, Oracle.  All rights reserved. Enter user-name: sys as sysdba Enter password: Connected to: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> select dbid from v$database;       DBID ---------- 2188161033 SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options C:\Users\computer>nid DBNEWID: Release 11.1.0.7.0 - Production on Thu Sep 10 21:04:44 2013 Copyright (c) 1982, 2007, Oracle.  All rights reserved. Keyword     Description                    (Default) ---------------------------------------------------- TARGET ...
Post a Comment
Read more

Difference between AWR, ADDM and ASH reports

AWR: Automatic Workload Repository gathers, processes and maintains performance stats used for problem detection and self-tuning the databases. Different Components that uses AWR are: Automatic Database Diagnostic Monitor Undo Advisor SQL Tuning Advisor Segment Advisor Different types of AWR Reports for different purposes: For Single Instance Environment: @$ORACLE_HOME/rdbms/admin/awrrpt.sql For Oracle RAC Environment : @$ORACLE_HOME/rdbms/admin/awrgrpt.sql For a particular SQL Statement : @$ORACLE_HOME/rdbms/admin/awrsqrpt.sql For Comparing the reports : @$ORACLE_HOME/rdbms/admin/awrddrpt.sql ADDM: Automatic Database Diagnostic Monitoring Report analyzes the AWR data on a regular basis, to give you overview of the root cause of the problem which is affecting your database’s performance. It also provides suggestions or recommendations for rectifying any problem identified and lists the areas which are having no issues. ADDM recommends multiple solutions for the DBA to choose from which...
Post a Comment
Read more