From e3a63ca8f24b42d58572192465fde84ffc248b69 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Sachse?= <joerg.sachse@slub-dresden.de>
Date: Wed, 1 Feb 2023 08:53:25 +0100
Subject: [PATCH] fix: implements system parameter suggestions from ExL SC
06626566
---
tasks/oracle/configure_system_limits.yml | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/tasks/oracle/configure_system_limits.yml b/tasks/oracle/configure_system_limits.yml
index da7ceb0..8f8eae5 100644
--- a/tasks/oracle/configure_system_limits.yml
+++ b/tasks/oracle/configure_system_limits.yml
@@ -1,6 +1,9 @@
---
-# all settings as suggested in SupportCase 00909505 "JDBCConnectionException:
-# Cannot open connection [Rosetta 6.3.0.0]"
+# all settings as suggested in
+# - SupportCase 00909505 "JDBCConnectionException:
+# Cannot open connection [Rosetta 6.3.0.0]"
+# - SupportCase 06626566 "Revalidation Process kills
+# performance, ingests and Oracle [Rosetta 7.3.0.2]"
- name: set PAM Limits (man 5 limits.conf)
ansible.builtin.blockinfile:
@@ -19,10 +22,10 @@
@exlibris hard memlock 4194304
@dba soft nofile 65000
@dba hard nofile 65000
- @dba soft nproc 16384
- @dba hard nproc 16384
- @dba soft memlock 33554432
- @dba hard memlock 33554432
+ @dba soft nproc 32768
+ @dba hard nproc 32768
+ @dba soft memlock 34603008
+ @dba hard memlock 34603008
notify: activate kernel parameter changes
- name: set Kernel parameters (man 5 sysctl.conf)
@@ -43,6 +46,9 @@
fs.aio-max-nr = 3145728
fs.file-max = 6815744
# Use 65GB, about 95% of total RAM 68G
- kernel.shmmax = 69793218560
- kernel.shmall = 17039360
+ #kernel.shmmax = 69793218560
+ #kernel.shmall = 17039360
+ # use 61GB, about 89,7% of total RAM 68G as of SC 06626566
+ kernel.shmmax=65498251264
+ kernel.shmall=15990784
notify: activate kernel parameter changes
--
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