Skip to main content
NetApp Knowledge Base

SCO backing up archive logs in a RAC setup slows down in sudoers setup

  1. Last updated
  2. Save as PDF
Views:
111
Visibility:
Public
Votes:
0
Category:
snapcenter
Specialty:
snapx
Last Updated:

Applies to

SnapCenter plug-in for Oracle (SCO) 4.8 and higher

Issue

When running an archive log backup or full backup with archive logs, the process that checks the archive logs takes a lot longer, due to checking each log multiple times:

DEBUG Execution Monitor Thread [sudo/opt/NetApp/snapcenter/spl/bin/sc_command_executor oracle "test -f '/<MNT>/archivelog/<SID>/1_129413_1053564278.arc' && echo true || echo false"] c.n.c.e.ShellResult - EXE-00001: Shell result [0:00:00.427] (ExitValue: 0):

DEBUG Execution Monitor Thread [sudo/opt/NetApp/snapcenter/spl/bin/sc_command_executor oracle "test -f '/<MNT>/archivelog/<SID>/1_129413_1053564278.arc' && echo true || echo false"] c.n.c.e.ShellResult - EXE-00001: Shell result [0:00:00.414] (ExitValue: 0):

 DEBUG Execution Monitor Thread [sudo/opt/NetApp/snapcenter/spl/bin/sc_command_executor oracle "test -f '/<MNT>/archivelog/<SID>/1_129413_1053564278.arc' && echo true || echo false"] c.n.c.e.ShellResult - EXE-00001: Shell result [0:00:00.430] (ExitValue: 0):

DEBUG Execution Monitor Thread [sudo/opt/NetApp/snapcenter/spl/bin/sc_command_executor oracle "test -f '/<MNT>/archivelog/<SID>/1_129413_1053564278.arc' && echo true || echo false"] c.n.c.e.ShellResult - EXE-00001: Shell result [0:00:00.407] (ExitValue: 0):

DEBUG Execution Monitor Thread [sudo/opt/NetApp/snapcenter/spl/bin/sc_command_executor oracle "test -f '/<MNT>/archivelog/<SID>/1_129413_1053564278.arc' && echo true || echo false"] c.n.c.e.ShellResult - EXE-00001: Shell result [0:00:00.410] (ExitValue: 0):

With around 400ms (in this particular case), five consequtive runs on the same file take about two seconds. With enough archive logs (e.g. 300-400), this can delay the full backup for quite some time. e.g. 360 archive logs x 5 checks x 2 seconds = 3600 seconds = 1 hour.

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.