• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer navigation

The Geek Diary

  • OS
    • Linux
    • CentOS/RHEL
    • Solaris
    • Oracle Linux
    • VCS
  • Interview Questions
  • Database
    • oracle
    • oracle 12c
    • ASM
    • mysql
    • MariaDB
  • DevOps
    • Docker
    • Shell Scripting
  • Big Data
    • Hadoop
    • Cloudera
    • Hortonworks HDP

How to Disable Oracle Net Tracing without stopping server process

by admin

When Oracle Net server tracing is invoked using sqlnet.ora (see example below) tracing on the affected server processes will continue throughout the process lifetime. If tracing needs to be stopped without stopping the server process the following method can be used.

Example: static server tracing using sqlnet.ora

trace_level_server = 16
trace_directory_server = /tmp
diag_adr_enabled = off

Use dynamic server tracing to disable tracing without stopping the server process.

The Steps

1. Identify the PID, or for Windows the thread ID, of the server process that is actively tracing.

Server traces are created with the process ID in the filename so this is easily done. The trace files below are being generated by server process id’s 19213,19364, and 19367.

[host admin]$ ls -al *.trc
-rw-rw---- 1 user user 192670 Jan 16 15:06 svr_19213.trc
-rw-rw---- 1 user user  80897 Jan 16 15:43 svr_19364.trc
-rw-rw---- 1 user user  59146 Jan 16 15:43 svr_19367.trc

2. Connect as sysdba and use oradebug to set the PID (or Windows thread ID) of the target server process identified in step 1.

[host admin]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Fri Jan 16 15:06:22 2015

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> oradebug setospid 19213
Oracle pid: 19, Unix process pid: 19213, image: host
SQL>

3. Once the PID or thread ID has been set in oradebug tracing can be disabled dynamically.

For Oracle versions 11.2.0.3 and lesser use:

oradebug dump event_tsm_test 0

For Oracle versions 11.2.0.4 and greater use:

oradebug dump sqlnet_server_trace 0

11.2.0.4 example:

SQL> oradebug dump sqlnet_server_trace 0
Statement processed.
SQL>

Tracing will stop immediately after issuing the command while the server process will continue to run.

Filed Under: oracle, oracle 12c, Oracle 19c

Some more articles you might also be interested in …

  1. Understanding Oracle Database Automatic SGA Memory Tuning
  2. Oracle Data Guard – Tempfiles created at primary are not automatically created at standby
  3. Substitution variable in PL/SQL
  4. Script To Find Redolog Switch History And Find Archivelog Size For Each Instances In Oracle RAC
  5. How to get DDL for User including Privileges and Roles Using dbms_metadata.get_ddl
  6. Oracle Database – How to Rename a Datafile with Special Characters Created by Mistake
  7. Oracle Interview Questions – Indexes on Partitioned Table
  8. Oracle Database – Measuring Network Capacity using oratcptest
  9. How to set the db_file_name_convert and log_file_name_convert parameters
  10. List of OCFS2 threads

You May Also Like

Primary Sidebar

Recent Posts

  • powertop Command Examples in Linux
  • powertop: command not found
  • powerstat: command not found
  • powerstat Command Examples in Linux

© 2023 · The Geek Diary

  • Archives
  • Contact Us
  • Copyright