[AWS] EC2 persistent instance retirement scheduled 해결

EC2 persistent instance retirement scheduled 해결하기

복구할 수 없는 장애를 감지하면 EC2 인스턴스가 사용 중지되도록 예약됩니다. 라고 이메일이 또왔다..!!

두번째 경험하는 일이라서 그런지 이제 그러려니한다..무료 인스턴스니까 이런건가?!

 

환경 : EC2 Ubuntu, tomcat9, Nginx, Oracle 11g XE

 

Instance state -> Stop instance 클릭 (완전히 Stopped 될때까지 5분 ~10분 정도 소요됨) -> Start instance 클릭

서버 접속후 톰캣 & Nginx 재시작

$ sudo service tomcat9 start

$ sudo service nginx start

오라클 기동

$ su - oracle
$ sqlplus /nolog
SQL > conn /as sysdba
SQL > startup;
ORACLE instance started.

Total System Global Area  405020672 bytes
Fixed Size		    2226960 bytes
Variable Size		  301991152 bytes
Database Buffers	   96468992 bytes
Redo Buffers		    4333568 bytes
Database mounted.
Database opened.

방화벽 설정 확인

# 방화벽 설정 확인
$systemctl status firewalld

# 방화벽 비활성화 및 설정유지
$sudo systemctl stop firewalld 
$sudo systemctl mask firewalld

오라클 리스너 관리 접속

$ lsnrctl

LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 21-4월 -2022 14:18:52

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Welcome to LSNRCTL, type "help" for information.

LSNRCTL> start
Starting /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.2.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/green/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=green)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date                21-4월 -2022 14:18:59
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           XE
Listener Parameter File   /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/green/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=green)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully