DevAdmin

Hi Everyone, I would like to inform to you all that,  pgBucket  beta2[Simple concurrent job scheduler for postgresql] version is ready with more stability. Thank you all in advance for your inputs/comments/suggestions. --Dinesh

Hi Everyone, I would like to inform to you all that, pgBucket [Simple concurrent job scheduler for postgresql] beta version is ready with enhanced architecture and new features. It would be more great if you could share your inputs and suggestions on this, which will help me to make this tool as stable. Thank you all in advance. --Dinesh

Hi All, I'm so excited to announce about my first contribution tool for postgresql. I have been working with PostgreSQL from 2011 and I'm really impressed with such a nice database. I started few projects in last 2 years like pgHawk[A beautiful report generator for Openwatch] , pgOwlt [CUI monitoring. It is still under development, incase you are interested to see what it is, attaching the image here for you ], pgBucket [Which I'm gonna talk about] and learned a lot and lot about PostgreSQL/Linux internals. Using pgBucket we can schedule jobs easily and we can also maintain them using it's CLI options. We can update/insert/delete jobs at online. And here is its architecture which gives you a basic idea about how it works. Yeah, I know there are other good job schedulers available for PostgreSQL. I haven't tested them and not comparing them with this, as I implemented it in my way. Features are: OS/DB jobs Cron style sytax Online job modi...

Hi, I am pretty sure that, there will be a right heading for this post. For now, i am going with this. If you could suggest me proper heading, i will update it :-) OK. let me explain the situation. Then will let you know what i am trying to do here, and how i did it. Situation here is, We have a table, which we need to run update on “R” no.of records. The update query is using some joins to get the desired result, and do update the table.  To process these “R” no.of records, it is taking “H” no.of hours. That too, it’s giving load on the production server. So, we planned to run this UPDATE as batch process.  Per a batch process, we took “N” no.or records. To process this batch UPDATE, it is taking “S” no.of seconds. With the above batch process, production server is pretty stable, and doing great. So, we planned to run these Batch updates parallel.  I mean, “K” sessions, running different record UPDATEs. Of-course, we can also increase the Batch size ...

Hi As a part of ORACLE to PostgreSQL Migration, I come across to implement a trigger on Oracle, which sync it's data to PostgreSQL. I have tried with a simple table as below, which is hopefully helpful to others. Find this link to configure the heterogeneous dblink to postgres. I believe, the below approach works effectively with the Primary Key tables of Oracle Database. If we don't have primary key in a table, then the UPDATE,DELETE statements going to fire multiple times in Postgres, which leads performance issues. ORACLE CREATE TABLE test(t INT PRIMARY KEY); CREATE OR REPLACE TRIGGER testref AFTER INSERT OR UPDATE OR DELETE ON test FOR EACH ROW DECLARE PRAGMA AUTONOMOUS_TRANSACTION; C number; N number; BEGIN c:=DBMS_HS_PASSTHROUGH.OPEN_CURSOR@pglink; IF INSERTING THEN DBMS_HS_PASSTHROUGH.PARSE@pglink(c, 'INSERT INTO test VALUES('||:NEW.t||');'); n:=DBMS_HS_PASSTHROUGH.EXECUTE_NON_QUERY@pglink(c); ELSIF DELETING THEN DBMS_HS_PASSTHROU...

I am sure that, most of you aware of this. But, for me it's the first time, I accomplished it. As one of my assigned tasks to build a 32-bit instance of postgresql on 64-bit machine, I have followed the below approach. I hope, it will be helpful to others as well, if you got any problems. As an initial step on this task, I have tried to build a sample "c" program using "gcc -m32". Once, I resolved this, I moved to compile the PostgreSQL 9.0. [root@localhost Desktop]# gcc -m32 -o test test.c In file included from /usr/include/features.h:385,                  from /usr/include/stdio.h:28,                  from test.c:1: /usr/include/gnu/stubs.h:7:27: error: gnu/stubs-32.h: No such file or directory To resolve the above issue, I have installed the 32-bit glibc-devel package through yum. yum -y install glibc-devel.i686 glibc-devel Again, I have tried to run the same command. [root@localhost...

Our team recently got  a problem, which is to solve the N-Node multi master replication in PostgreSQL. We all know that, there are some other db engines like Postgres-XC which works in this way. But, we don't have any tool available in PostgreSQL, except Bucardo. Bucardo is the nice solution for 2-Nodes. Is there a way we can exceed this limitation from 2 to N..? As an initial step on this, I have done with 3 Nodes, which I believe, we can extend this upto N. { I might be wrong here.} Please follow the below steps to set up the 1 - 1 multi master replication. 1. Follow the below steps to get all the pre-requisites for the Bucardo. yum install perl-DBIx-Safe or apt-get install libdbix-safe-perl Install the below components from CPAN. DBI DBD::Pg Test::Simple boolean (Bucardo 5.0 and higher) Download the latest tarball from here . tar xvfz Bucardo-4.4.8.tar.gz cd Bucardo-4.4.8 perl Makefile.PL make sudo make install 2. We need to create plperl extension in db. For t...