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RECENT POSTS

03
Oct
Active Session History (ASH) Reports

Active Session History (ASH) Reports 1. Overview ASH is Helpful to identify performance issues in old sessions. ASH Collects samples of active sessions every second (waiting for non-idle events, or on the CPU working) from v$sessions (inactive sessions are not captured). Sampled data collected to circular buffer in SGA and the same can be accessed […]

Posted in: Uncategorized,
03
Oct
How to generate ADDM report

How to generate ADDM report Automatic Database Diagnostic Monitor(ADDM) can analyze performance issues during a particular period and provide suggestion. An ADDM analysis is performed on a set of awr snapshots. addmrpt.sql script is used to generate addm report. Generate ADDM report: It will ask for begin snap_id and end snap_id To get snap id Execute […]

Posted in: Uncategorized,
03
Oct
Setup Password Less Ssh Connectivity Using SshUserSetup.Sh

How To Setup Password Less Ssh Connectivity Using SshUserSetup.Sh Before starting RAC setup between two nodes, we need to have password less ssh connectivity between the nodes.There is a manual process to enable ssh connectivity . However oracle is providing a simple sshUserSetup.sh script, that will automate the steps. db nodes – > node1 , node2 […]

Posted in: Oracle DBA,

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