Enterprise Manager Agent Collections are Generating High Load on LDAP server (Doc ID 2343409.1)

Last updated on JANUARY 18, 2023

Applies to:

Symptoms

The "getent" function used in the Oracle Home collection metrics is adding increased load to the LDAP server because of wildcard search.

Excerpt from the strace output:

66943-829 1466997010.777106 rt_sigaction(SIGHUP, {SIG_DFL, [], SA_RESTORER, 0x2ba9ea055b70},
 66944-497 1466997010.777120 stat("<PATH>/agent12c/core/12.1.0.4.0/perl/lib/5.10.0/Tie/Hash.pm",
 66945-829 1466997010.777146 NULL, 8) = 0
 66946-829 1466997010.777169 rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x2ba9ea055b70}, NULL, 8) = 0
 66947-829 1466997010.777220 rt_sigaction(SIGQUIT, {SIG_DFL, [], SA_RESTORER, 0x2ba9ea055b70}, NULL, 8) = 0
 66948:829 1466997010.777360 stat("/usr/bin/getent", {st_mode=S_IFREG|0755, st_size=23568, ...}) = 0
 >>>>>>>>>66949-829 1466997010.777426 getgroups(0, NULL) = 7
 66950-970 1466997010.777462 brk(0x421d000
 66951-497 1466997010.777479 {st_mode=S_IFREG|0755, st_size=7310, ...}) = 0
 66952-970 1466997010.777550 ) = 0x421d000
 66953-497 1466997010.777586 open("<PATH>/agent12c/core/12.1.0.4.0/perl/lib/5.10.0/Tie/Hash.pm", O_RDONLY
 66954-829 1466997010.777636 getgroups(7, [280, 9998, 34001, 64948, 70188, 70198, 74048]) = 7

Changes

Cause

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