Wiki » History » Version 2
Pablo Alingery, 28/09/2017 15:14
| 1 | 1 | Pablo Alingery | h1. Netdrms 9.1.1 |
|---|---|---|---|
| 2 | 1 | Pablo Alingery | |
| 3 | 1 | Pablo Alingery | h2. Posgres 9.4.13 |
| 4 | 1 | Pablo Alingery | |
| 5 | 1 | Pablo Alingery | h3. Install additional modules |
| 6 | 1 | Pablo Alingery | |
| 7 | 1 | Pablo Alingery | We need dblink for triggers between db |
| 8 | 1 | Pablo Alingery | |
| 9 | 1 | Pablo Alingery | <pre> |
| 10 | 1 | Pablo Alingery | root@sdo1:~# cd /usr/share/postgresql/9.4/extension |
| 11 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# ls -al dblink--1.1.sql |
| 12 | 1 | Pablo Alingery | -rw-r--r-- 1 root root 5831 Aug 10 14:53 dblink--1.1.sql |
| 13 | 1 | Pablo Alingery | </pre> |
| 14 | 1 | Pablo Alingery | |
| 15 | 1 | Pablo Alingery | h4. ias_sdo |
| 16 | 1 | Pablo Alingery | |
| 17 | 1 | Pablo Alingery | <pre> |
| 18 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# psql ias_sdo -p5432 -U postgres < dblink--1.1.sql |
| 19 | 1 | Pablo Alingery | Use "CREATE EXTENSION dblink" to load this file. |
| 20 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# |
| 21 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# |
| 22 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# |
| 23 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# psql ias_sdo -U postgres |
| 24 | 1 | Pablo Alingery | psql (9.4.13) |
| 25 | 1 | Pablo Alingery | Type "help" for help. |
| 26 | 1 | Pablo Alingery | |
| 27 | 1 | Pablo Alingery | ias_sdo=# CREATE EXTENSION dblink ; |
| 28 | 1 | Pablo Alingery | ERROR: extension "dblink" already exists |
| 29 | 1 | Pablo Alingery | ias_sdo=# \q |
| 30 | 1 | Pablo Alingery | </pre> |
| 31 | 1 | Pablo Alingery | |
| 32 | 1 | Pablo Alingery | Seems ok ! |
| 33 | 1 | Pablo Alingery | |
| 34 | 1 | Pablo Alingery | h4. ias_sdo_sums |
| 35 | 1 | Pablo Alingery | |
| 36 | 1 | Pablo Alingery | <pre> |
| 37 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# psql ias_sdo_sums -p5434 -U postgres < dblink--1.1.sql |
| 38 | 1 | Pablo Alingery | Use "CREATE EXTENSION dblink" to load this file. |
| 39 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# psql ias_sdo_sums -p5434 -U postgres |
| 40 | 1 | Pablo Alingery | psql (9.4.13) |
| 41 | 1 | Pablo Alingery | Type "help" for help. |
| 42 | 1 | Pablo Alingery | |
| 43 | 1 | Pablo Alingery | ias_sdo_sums=# CREATE EXTENSION dblink ; |
| 44 | 1 | Pablo Alingery | ERROR: extension "dblink" already exists |
| 45 | 1 | Pablo Alingery | ias_sdo_sums=# \q |
| 46 | 1 | Pablo Alingery | </pre> |
| 47 | 1 | Pablo Alingery | |
| 48 | 1 | Pablo Alingery | Seems ok too ! |
| 49 | 1 | Pablo Alingery | |
| 50 | 1 | Pablo Alingery | h4. ias_sdo_monitor |
| 51 | 1 | Pablo Alingery | |
| 52 | 1 | Pablo Alingery | <pre> |
| 53 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# psql ias_sdo_monitor -p5436 -U postgres < dblink--1.1.sql |
| 54 | 1 | Pablo Alingery | Use "CREATE EXTENSION dblink" to load this file. |
| 55 | 1 | Pablo Alingery | root@sdo1:/usr/share/postgresql/9.4/extension# psql ias_sdo_monitor -p5436 -U postgres |
| 56 | 1 | Pablo Alingery | psql (9.4.13) |
| 57 | 1 | Pablo Alingery | Type "help" for help. |
| 58 | 1 | Pablo Alingery | |
| 59 | 1 | Pablo Alingery | ias_sdo_monitor=# CREATE EXTENSION dblink ; |
| 60 | 1 | Pablo Alingery | ERROR: extension "dblink" already exists |
| 61 | 1 | Pablo Alingery | </pre> |
| 62 | 1 | Pablo Alingery | |
| 63 | 1 | Pablo Alingery | Ok too! |
| 64 | 2 | Pablo Alingery | |
| 65 | 2 | Pablo Alingery | |
| 66 | 2 | Pablo Alingery | Creation of missing tables & functions |
| 67 | 2 | Pablo Alingery | |
| 68 | 2 | Pablo Alingery | TABLE drms.ingested_sunums |
| 69 | 2 | Pablo Alingery | |
| 70 | 2 | Pablo Alingery | --When a client ingests a Slony log, each SUNUM of each data series record is copied |
| 71 | 2 | Pablo Alingery | -- into this table. The client can use this table of SUNUMs to prefetch SUs from the |
| 72 | 2 | Pablo Alingery | -- providing site. This SQL is ingested as the pg_user database user, the same |
| 73 | 2 | Pablo Alingery | -- user that will be ingesting Slony logs and prefetching SUs, so permissions on |
| 74 | 2 | Pablo Alingery | -- this table will be correct without having to execute a GRANT statement. |
| 75 | 2 | Pablo Alingery | -- |
| 76 | 2 | Pablo Alingery | -- The namespace drms is required, and is created by NetDRMS.sql during the |
| 77 | 2 | Pablo Alingery | -- NetDRMS installation process. |
| 78 | 2 | Pablo Alingery | -- |
| 79 | 2 | Pablo Alingery | |
| 80 | 2 | Pablo Alingery | <pre> |
| 81 | 2 | Pablo Alingery | DROP TABLE IF EXISTS drms.ingested_sunums; |
| 82 | 2 | Pablo Alingery | CREATE TABLE drms.ingested_sunums (sunum bigint PRIMARY KEY, starttime timestamp with time zone NOT NULL); |
| 83 | 2 | Pablo Alingery | CREATE INDEX ingested_sunums_starttime ON drms.ingested_sunums(starttime); |
| 84 | 2 | Pablo Alingery | </pre> |
| 85 | 2 | Pablo Alingery | |
| 86 | 2 | Pablo Alingery | |
| 87 | 2 | Pablo Alingery | |
| 88 | 2 | Pablo Alingery | FUNCTION drms.capturesunum |
| 89 | 2 | Pablo Alingery | -- |
| 90 | 2 | Pablo Alingery | -- For each table under replication, a trigger is created that calls this function, which |
| 91 | 2 | Pablo Alingery | -- then copies SUNUMs into the underlying table, drms.ingested_sunums. |
| 92 | 2 | Pablo Alingery | -- |
| 93 | 2 | Pablo Alingery | -- drms.ingested_sunums may not exist (older NetDRMSs did not receive the SQL to create |
| 94 | 2 | Pablo Alingery | -- this table). If this table does not exist, then this function is a no-op. |
| 95 | 2 | Pablo Alingery | -- |
| 96 | 2 | Pablo Alingery | |
| 97 | 2 | Pablo Alingery | <pre> |
| 98 | 2 | Pablo Alingery | CREATE OR REPLACE FUNCTION drms.capturesunum() RETURNS TRIGGER AS |
| 99 | 2 | Pablo Alingery | $capturesunumtrig$ |
| 100 | 2 | Pablo Alingery | BEGIN |
| 101 | 2 | Pablo Alingery | IF EXISTS (SELECT n.nspname, c.relname FROM pg_class c JOIN pg_namespace n ON n.oid = c.relnamespace WHERE n.nspname = 'drms' AND c.relname = 'ingested_sunums') THEN |
| 102 | 2 | Pablo Alingery | IF (TG_OP='INSERT' AND new.sunum > 0) THEN |
| 103 | 2 | Pablo Alingery | IF EXISTS (SELECT 1 FROM drms.ingested_sunums WHERE sunum = new.sunum) THEN |
| 104 | 2 | Pablo Alingery | RETURN NULL; |
| 105 | 2 | Pablo Alingery | END IF; |
| 106 | 2 | Pablo Alingery | INSERT INTO drms.ingested_sunums (sunum, starttime) VALUES (new.sunum, clock_timestamp()); |
| 107 | 2 | Pablo Alingery | END IF; |
| 108 | 2 | Pablo Alingery | END IF; |
| 109 | 2 | Pablo Alingery | |
| 110 | 2 | Pablo Alingery | RETURN NEW; |
| 111 | 2 | Pablo Alingery | END |
| 112 | 2 | Pablo Alingery | $capturesunumtrig$ LANGUAGE plpgsql; |
| 113 | 2 | Pablo Alingery | </pre> |