556 lines
14 KiB
Markdown
556 lines
14 KiB
Markdown
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## Context
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- Source: non-CDB = GREEDO@rodia-scan
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- Target: PDB = REEK, CDB=AERONPRD@ylesia-scan
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## Setup
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Create tablespaces and users:
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```
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create tablespace TS1 datafile size 16M autoextend on next 16M;
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create tablespace TS2 datafile size 16M autoextend on next 16M;
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create tablespace TS3 datafile size 16M autoextend on next 16M;
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alter tablespace TS1 add datafile size 16M autoextend on next 16M;
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alter tablespace TS1 add datafile size 16M autoextend on next 16M;
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alter tablespace TS2 add datafile size 16M autoextend on next 16M;
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alter tablespace TS3 add datafile size 16M autoextend on next 16M;
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alter tablespace TS3 add datafile size 16M autoextend on next 16M;
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alter tablespace TS3 add datafile size 16M autoextend on next 16M;
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create user U1 identified by secret;
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grant connect, resource, create view,create job to U1;
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alter user U1 quota unlimited on TS1;
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alter user U1 quota unlimited on TS2;
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alter user U1 quota unlimited on TS3;
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create user U2 identified by secret;
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grant connect, resource, create view,create job to U2;
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alter user U2 quota unlimited on TS1;
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alter user U2 quota unlimited on TS2;
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alter user U2 quota unlimited on TS3;
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```
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For each user, create objects:
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connect U1/secret
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-- create objcts
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connect U2/secret
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-- create objcts
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Create objects script:
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```
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-- TABLE 1 dans TS1
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CREATE TABLE table1_ts1 (
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id NUMBER PRIMARY KEY,
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data VARCHAR2(100),
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created_at DATE DEFAULT SYSDATE
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) TABLESPACE TS1;
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CREATE SEQUENCE table1_seq
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START WITH 1
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INCREMENT BY 1
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NOCACHE
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NOCYCLE;
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CREATE OR REPLACE TRIGGER trg_table1_id
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BEFORE INSERT ON table1_ts1
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FOR EACH ROW
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BEGIN
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IF :NEW.id IS NULL THEN
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SELECT table1_seq.NEXTVAL INTO :NEW.id FROM dual;
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END IF;
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END;
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/
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-- TABLE 2 dans TS2
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CREATE TABLE table2_ts2 (
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id NUMBER PRIMARY KEY,
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data VARCHAR2(100),
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updated_at DATE
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) TABLESPACE TS2;
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CREATE SEQUENCE table2_seq
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START WITH 1
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INCREMENT BY 1
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NOCACHE
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NOCYCLE;
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CREATE OR REPLACE TRIGGER trg_table2_id
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BEFORE INSERT ON table2_ts2
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FOR EACH ROW
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BEGIN
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IF :NEW.id IS NULL THEN
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SELECT table2_seq.NEXTVAL INTO :NEW.id FROM dual;
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END IF;
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END;
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/
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-- TABLE 3 dans TS3
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CREATE TABLE table3_ts3 (
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id NUMBER PRIMARY KEY,
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info VARCHAR2(100),
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status VARCHAR2(20)
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) TABLESPACE TS3;
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CREATE SEQUENCE table3_seq
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START WITH 1
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INCREMENT BY 1
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NOCACHE
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NOCYCLE;
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CREATE OR REPLACE TRIGGER trg_table3_id
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BEFORE INSERT ON table3_ts3
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FOR EACH ROW
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BEGIN
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IF :NEW.id IS NULL THEN
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SELECT table3_seq.NEXTVAL INTO :NEW.id FROM dual;
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END IF;
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END;
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/
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CREATE OR REPLACE VIEW combined_view AS
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SELECT id, data, created_at, NULL AS updated_at, NULL AS status FROM table1_ts1
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UNION ALL
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SELECT id, data, updated_at, NULL AS created_at, NULL AS status FROM table2_ts2
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UNION ALL
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SELECT id, info AS data, NULL, NULL, status FROM table3_ts3;
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CREATE OR REPLACE PACKAGE data_ops AS
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PROCEDURE insert_random_data;
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PROCEDURE update_random_data;
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PROCEDURE delete_random_data;
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END data_ops;
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/
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CREATE OR REPLACE PACKAGE BODY data_ops AS
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PROCEDURE insert_random_data IS
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BEGIN
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FOR i IN 1..10 LOOP
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INSERT INTO table1_ts1 (data)
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VALUES (DBMS_RANDOM.STRING('A', 10));
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END LOOP;
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FOR i IN 1..3 LOOP
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INSERT INTO table3_ts3 (info, status)
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VALUES (DBMS_RANDOM.STRING('A', 10), 'NEW');
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END LOOP;
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END;
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PROCEDURE update_random_data IS
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BEGIN
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FOR i IN 1..7 LOOP
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INSERT INTO table2_ts2 (data)
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VALUES (DBMS_RANDOM.STRING('A', 10));
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END LOOP;
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FOR rec IN (
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SELECT id FROM (
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SELECT id FROM table2_ts2 ORDER BY DBMS_RANDOM.VALUE
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) WHERE ROWNUM <= 5
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) LOOP
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UPDATE table2_ts2
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SET data = DBMS_RANDOM.STRING('A', 10), updated_at = SYSDATE
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WHERE id = rec.id;
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END LOOP;
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END;
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PROCEDURE delete_random_data IS
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BEGIN
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FOR rec IN (
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SELECT id FROM (
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SELECT id FROM table3_ts3 ORDER BY DBMS_RANDOM.VALUE
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) WHERE ROWNUM <= 2
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) LOOP
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DELETE FROM table3_ts3 WHERE id = rec.id;
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END LOOP;
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END;
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END data_ops;
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/
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```
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Create job to run every 1 minute:
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```
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BEGIN
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DBMS_SCHEDULER.CREATE_JOB (
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job_name => 'random_ops_job',
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job_type => 'PLSQL_BLOCK',
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job_action => '
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BEGIN
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data_ops.insert_random_data;
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data_ops.update_random_data;
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data_ops.delete_random_data;
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END;',
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start_date => SYSTIMESTAMP,
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repeat_interval => 'FREQ=MINUTELY; INTERVAL=1',
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enabled => TRUE,
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comments => 'Job to insert, update and delete random data every minute.'
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);
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END;
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/
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```
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To restart the job:
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```
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--Restart the job
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BEGIN
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DBMS_SCHEDULER.enable('random_ops_job');
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END;
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/
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```
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Count the lines in tables:
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```
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select
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'u1.table1_ts1:'||count(*) from u1.table1_ts1
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union select
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'u1.table2_ts2:'||count(*) from u1.table2_ts2
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union select
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'u1.table3_ts3:'||count(*) from u1.table3_ts3
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union select
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'u2.table1_ts1:'||count(*) from u2.table1_ts1
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union select
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'u2.table2_ts2:'||count(*) from u2.table2_ts2
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union select
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'u2.table3_ts3:'||count(*) from u2.table3_ts3
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order by 1 asc
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/
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```
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To ensure the automatic opening of PDB, create a service to start automatically in the PDB:
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srvctl add service -s adm_reek -db AERONPRD -preferred AERONPRD1,AERONPRD2,AERONPRD3 -pdb REEK -role PRIMARY
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srvctl start service -s adm_reek -db AERONPRD
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## XTTS
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> Note MOS: V4 Reduce Transportable Tablespace Downtime using Cross Platform Incremental Backup (Doc ID 2471245.1)
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### Initial setup
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Identify tablespaces to transport, probably all non "administrative" tablespaces:
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```
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select
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listagg(tablespace_name, ',')
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within group
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(order by tablespace_name) as non_sys_ts
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from
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dba_tablespaces
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where
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contents not in ('UNDO','TEMPORARY') and
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tablespace_name not in ('SYSTEM','SYSAUX');
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```
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For source and target servers, define folders to be used for scripts, backupset, datapump etc.
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In our case, that will be a shared NFS folder `/mnt/unprotected/tmp/oracle/xtts`
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> The size of folder should be greather than the size of full database.
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Unzip xtts scripts:
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cd /mnt/unprotected/tmp/oracle/xtts
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unzip /mnt/yavin4/kit/Oracle/XTTS/rman_xttconvert_VER4.3.zip
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Configure xtt.properties file:
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```
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tablespaces=TS1,TS2,TS3,USERS
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src_scratch_location=/mnt/unprotected/tmp/oracle/xtts/scratch
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dest_datafile_location=+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/xtts/
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dest_scratch_location=/mnt/unprotected/tmp/oracle/xtts/scratch
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asm_home=/app/oracle/grid/product/19
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asm_sid=+ASM1
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destconnstr=sys/"Secret00!"@ylesia-scan/adm_reek
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usermantransport=1
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```
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On target server, create ASM directory where the datafile will be restored:
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mkdir +DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/xtts
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On **both source and target** servers, set `TMPDIR` environment variable to the path of xtts scripts:
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export TMPDIR=/mnt/unprotected/tmp/oracle/xtts
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### Prepare Phase
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This step corresponds to initial full backup/restore of source database on target system.
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Initial backup on source server:
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```
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export TMPDIR=/mnt/unprotected/tmp/oracle/xtts
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cd $TMPDIR
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$ORACLE_HOME/perl/bin/perl xttdriver.pl --backup --debug 3
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```
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Initial restore on target server:
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```
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export TMPDIR=/mnt/unprotected/tmp/oracle/xtts
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cd $TMPDIR
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$ORACLE_HOME/perl/bin/perl xttdriver.pl --restore --debug 3
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```
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> `debug` argument is optional
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### Roll Forward Phase
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As long as necessary we can do incremental backup/resore operations.
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> New datafiles add to source database are automatically managed by this step.
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The commands are exactly the sames (with or without debug mode).
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For backup:
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```
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export TMPDIR=/mnt/unprotected/tmp/oracle/xtts
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cd $TMPDIR
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$ORACLE_HOME/perl/bin/perl xttdriver.pl --backup
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```
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For restore:
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```
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export TMPDIR=/mnt/unprotected/tmp/oracle/xtts
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cd $TMPDIR
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$ORACLE_HOME/perl/bin/perl xttdriver.pl --restore
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```
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> Running succesives backup or successive restore operations does not pose a problem.
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### Final Incremental Backup
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On **source** database, put tablespaces in **read-only** mode:
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```
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select
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'alter tablespace '||tablespace_name||' read only;' as COMMAND
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from
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dba_tablespaces
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where
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contents not in ('UNDO','TEMPORARY') and
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tablespace_name not in ('SYSTEM','SYSAUX');
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```
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Check:
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```
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select distinct status
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from
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dba_tablespaces
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where
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contents not in ('UNDO','TEMPORARY') and
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tablespace_name not in ('SYSTEM','SYSAUX');
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```
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Take final incremental backup:
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```
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export TMPDIR=/mnt/unprotected/tmp/oracle/xtts
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cd $TMPDIR
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$ORACLE_HOME/perl/bin/perl xttdriver.pl --backup
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```
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Rstore final incremental backup:
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```
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export TMPDIR=/mnt/unprotected/tmp/oracle/xtts
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cd $TMPDIR
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$ORACLE_HOME/perl/bin/perl xttdriver.pl --restore
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```
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### Metadata export
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Create DATAPUMP directory on **both** source and destination databases.
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On source (non-CDB):
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SQL> create or replace directory XTTS as '/mnt/unprotected/tmp/oracle/xtts';
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On destination (PDB):
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export ORACLE_PDB_SID=REEK
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SQL> create or replace directory XTTS as '/mnt/unprotected/tmp/oracle/xtts';
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Export metadata
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expdp userid="'/ as sysdba'" dumpfile=XTTS:metadata.dmp logfile=XTTS:metadata.log FULL=y TRANSPORTABLE=always
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### Optionally: on target, pout target datafiles read-only at OS level
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Identify OMF target datafiles:
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```
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asmcmd -p
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cd +DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/xtts
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ls --permission
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```
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For each datafile, set read-olny permisions, example:
|
||
|
|
|
||
|
|
chmod 444 +DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/xtts/*
|
||
|
|
|
||
|
|
If you got:
|
||
|
|
|
||
|
|
ORA-15304: operation requires ACCESS_CONTROL.ENABLED attribute to be TRUE (DBD ERROR: OCIStmtExecute)
|
||
|
|
|
||
|
|
then set following diskgroup attributes and retry.
|
||
|
|
|
||
|
|
```
|
||
|
|
column dg_name format a20
|
||
|
|
column name format a50
|
||
|
|
column VALUE format a30
|
||
|
|
|
||
|
|
set lines 120
|
||
|
|
|
||
|
|
select
|
||
|
|
dg.name dg_name, attr.name, attr.value
|
||
|
|
from
|
||
|
|
v$asm_attribute attr
|
||
|
|
join v$asm_diskgroup dg on attr.group_number=dg.group_number
|
||
|
|
where
|
||
|
|
attr.name in ('compatible.rdbms','access_control.enabled')
|
||
|
|
order by dg.name, attr.name
|
||
|
|
/
|
||
|
|
|
||
|
|
|
||
|
|
alter diskgroup DATA set attribute 'compatible.rdbms' = '19.0.0.0.0';
|
||
|
|
alter diskgroup RECO set attribute 'compatible.rdbms' = '19.0.0.0.0';
|
||
|
|
|
||
|
|
alter diskgroup DATA set attribute 'access_control.enabled' = 'TRUE';
|
||
|
|
alter diskgroup RECO set attribute 'access_control.enabled' = 'TRUE';
|
||
|
|
```
|
||
|
|
|
||
|
|
> Compare number of datafiles transported and the number of datafiles of non-Oracle tablespaces
|
||
|
|
> Check if transported tablespaces already exists on target database
|
||
|
|
|
||
|
|
### Metadata import and tablespace plug-in
|
||
|
|
|
||
|
|
Create impdp parfile `impo_metadata.par`:
|
||
|
|
|
||
|
|
```
|
||
|
|
userid="/ as sysdba"
|
||
|
|
dumpfile=XTTS:metadata.dmp
|
||
|
|
logfile=XTTS:impo_metadata.log
|
||
|
|
transport_datafiles=
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS1.290.1205059373,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS1.291.1205059373,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS1.298.1205060113,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS1.289.1205059373,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS2.293.1205059375,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS2.300.1205060113,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS2.292.1205059375,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS3.294.1205059381,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS3.295.1205059381,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS3.296.1205059381,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS3.297.1205059381,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/TS3.299.1205060113,
|
||
|
|
+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/USERS.302.1205084171
|
||
|
|
```
|
||
|
|
|
||
|
|
Run import:
|
||
|
|
|
||
|
|
impdp parfile=impo_metadata.par
|
||
|
|
|
||
|
|
|
||
|
|
Rebounce the PDB (or the CDB), otherwise we can get errors like:
|
||
|
|
|
||
|
|
```
|
||
|
|
ORA-01114: IO error writing block to file 33 (block # 1)
|
||
|
|
ORA-01110: data file 33:
|
||
|
|
'+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/ts1.298.1205060113'
|
||
|
|
ORA-27009: cannot write to file opened for read
|
||
|
|
```
|
||
|
|
|
||
|
|
Put plugged tablespaces in read/write mode:
|
||
|
|
|
||
|
|
```
|
||
|
|
select
|
||
|
|
'alter tablespace '||tablespace_name||' read write;' as COMMAND
|
||
|
|
from
|
||
|
|
dba_tablespaces
|
||
|
|
where
|
||
|
|
contents not in ('UNDO','TEMPORARY') and
|
||
|
|
tablespace_name not in ('SYSTEM','SYSAUX');
|
||
|
|
```
|
||
|
|
|
||
|
|
Remove aliases in order to user only OMF datafiles:
|
||
|
|
|
||
|
|
```
|
||
|
|
cd +DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/xtts
|
||
|
|
rmalias ts1_8.dbf ts2_13.dbf... .... ...
|
||
|
|
cd ..
|
||
|
|
rm -rf xtts
|
||
|
|
```
|
||
|
|
|
||
|
|
## Unxexpectd issues
|
||
|
|
|
||
|
|
In metadata import step I relize I forgot to include USER tablespace in `xtt.properties` and impdp failed wit error:
|
||
|
|
|
||
|
|
ORA-39352: Wrong number of TRANSPORT_DATAFILES specified: expected 13, received 12
|
||
|
|
|
||
|
|
The tablespace USER being in read-only mode I copied the datafile manually on target database.
|
||
|
|
|
||
|
|
Identify the file number:
|
||
|
|
|
||
|
|
```
|
||
|
|
SQL> select FILE_ID from dba_data_files where TABLESPACE_NAME='USERS';
|
||
|
|
|
||
|
|
FILE_ID
|
||
|
|
----------
|
||
|
|
7
|
||
|
|
```
|
||
|
|
|
||
|
|
Backup datafile on source:
|
||
|
|
|
||
|
|
```
|
||
|
|
run{
|
||
|
|
set nocfau;
|
||
|
|
backup datafile 7 format '/mnt/unprotected/tmp/oracle/xtts/%d_%U_%s_%t.bck';
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
Restore datafile on target;
|
||
|
|
|
||
|
|
```
|
||
|
|
run {
|
||
|
|
restore from platform 'Linux x86 64-bit'
|
||
|
|
foreign datafile 7 format '+DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/xtts//USERS.dbf'
|
||
|
|
from backupset '/mnt/unprotected/tmp/oracle/xtts/GREEDO_0i3t87ss_18_1_1_18_1205084060.bck';
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
Put datafile in read-ony at ASM level:
|
||
|
|
|
||
|
|
chmod 444 +DATA/AERONPRD/389011A6CB11A654E0635000A8C07D80/DATAFILE/USERS.302.1205084171
|
||
|
|
|
||
|
|
Run the impdp again.
|
||
|
|
|
||
|
|
|
||
|
|
## Troubleshooting
|
||
|
|
|
||
|
|
Having datafile to plug-in in read-only mode at ASM level allow to repeat tne impdp operations as many time as necessary.
|
||
|
|
For example, to completly re-execute the impdp metadata as on initial conditions:
|
||
|
|
- drop new plugged tablespaces
|
||
|
|
- drop non oracle maintened users
|
||
|
|
- run impdp metadata again
|
||
|
|
|
||
|
|
```
|
||
|
|
drop tablespace TS1 including contents;
|
||
|
|
drop tablespace TS2 including contents;
|
||
|
|
drop tablespace TS3 including contents;
|
||
|
|
drop tablespace USERS including contents;
|
||
|
|
|
||
|
|
select 'drop user '||USERNAME||' cascade;' from dba_users where ORACLE_MAINTAINED='N';
|
||
|
|
```
|
||
|
|
|