PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. It runs on all major operating systems, including Linux, UNIX (...

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4
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1answer
1k views

What is the size of an IO Operation (IOP) in AWS EBS?

My research suggests that both the standard and the maximum (kernel limitations) block size for modern file systems (ext4, xfs) is 4KB. However, AWS allows IO operations as large as 256KB and says ...
1
vote
1answer
725 views

backup postgresql via docker exec

How would you go about taking automatic rotated backups of a postgresql database running inside a docker 1.3 container? I'm mostly interested in the overall approach vs. the details of actual the ...
0
votes
1answer
794 views

Postgres Remote Connection Timeout

I've been reading tutorials extensively to help figure out my problem, but to no avail. I have a Redhat VM that I've installed Postgres on that I'm trying to make available for remote connections. ...
5
votes
1answer
6k views

Cannot connect to PostgreSQL unix domain socket

I'm trying to connect to PostgreSQL Unix domain socket from a PHP web application. Relevant system components: CentOS 7 x64 (SELinux enforced) postgresql93 9.3.5-2PGDG.rhel7 nginx 1.6.2-1.el7.ngx ...
1
vote
0answers
3k views

How to upgrade from Postgres 9.1 to 9.3 allowing read access during upgrade

"PostgreSQL 9.1.2 on x86_64-unknown-linux-gnu, compiled by gcc-4.4.real (Debian 4.4.5-8) 4.4.5, 64-bit" is working in Debian 6.0 Squeeze It contains 12 databases accessed by 100 users from internet. ...
1
vote
1answer
265 views

PostgreSQL 9.3 and peer authentication

This seems stupid simple but it's not working. My pg_hba.conf: # type database user address type local all postgres peer # postgres user ...
-2
votes
1answer
179 views

Do we need enterprise support for RHEL/CentOS and PostgreSQL [closed]

We are an SI currently working on a proposal for an web app solution with tight budget. The 3rd party web app is written in JDK7 is to be deployed to 2 physical server running 3 VM each, one for ...
4
votes
1answer
2k views

Postgresql Provided user name and authenticated user name do not match

I am trying to get tinyRSS running on my own server using PostgreSql. However I keep getting this error: LOG: provided user name (tinyrss) and authenticated user name (apache) do not match FATAL: ...
1
vote
1answer
961 views

CentOS 6.5 on Vmware can't ping Host machine

I have installed a CentOS 6.5 on VMware WorkStation 10 all running on Windows 7 64bit, internet is working fine but I can't ping host machine from CentOS vice vers, it tells me Destination Host ...
0
votes
1answer
879 views

How to install Postgres 9.3 parallel in Debian Squeeze

Debian 6 contains Postgres 9.1 installation installed from Debian backports in 5432 port How to install Postgres 9.3 also on this server. I found instructions in http://www.postgresql.org/download/...
1
vote
1answer
1k views

“bin/unpack200: not found” when installing TeamPostgreSQL

Running Ubuntu 14.04 64bit. I downloaded the 68MB .sh file from the project website. When I run the file with sudo I get the following output: ben@tardis:~$ sudo ./teampostgresql_ubuntu.sh Unpacking ...
0
votes
1answer
684 views

pgpool2 parallel mode: Non-superusers must provide a password in the connection string

I have two AWS RDS postgres nodes backing a parallel mode pgpool setup on EC2. After using pgbench to populate test tables, I get odd behavior from test queries. Any query that uses a function ...
0
votes
1answer
191 views

autocomplete is not working in postgreesql 8.4

I have installed postgresql 8.4.21 in my CentOS 5. But when I fire Select Query is it not showing me any completion if I press TAB key.. database=# select count is it any configuration in postgreql....
3
votes
1answer
1k views

Postgresql 9.3 Log Shipping on a Hot Standby

My setup I've just set up streaming replication in postgres for the first time (9.3.5), and while the streaming is working as I expect, I'm struggling to get my standby to run the archive_command so ...
5
votes
1answer
1k views

Django: CONN_MAX_AGE persists connections, but doesn't reuse them with PostgreSQL

I've got a django setup are using Django 1.6.7 and Postgres 9.3 on Ubuntu 14.04 LTS. At any given time, the site gets about ~250 simultaneous connections to the PostgreSQL database, which is a Quad ...
0
votes
1answer
599 views

Connect with Java to Amazon EC2 instances

I have written a client-server application in Java and I want to run it on Amazon EC2 Ubuntu instacnes. The client runs on an EC2 instance and the server on one and the third EC2 instance is for ...
0
votes
2answers
845 views

postgreSQL archive process failed on

I upgraded a cluster from 8.3 to 8.4. Things seemed to be fine so I dropped the 8.3 cluster. Then noticed an error and found that the archive_command was still pointing to the 8.3 data directory ...
0
votes
1answer
784 views

pgpool run and only log one line

I am using pgpool and when I run: sudo pgpool -f pgpool.conf -F pcp.conf -n It just log one line and keep waitting.... : 2014-10-09 13:27:42 LOG: pid 28626: wd_chk_setuid: ifup[/sbin/ifconfig] ...
2
votes
1answer
646 views

Most reliable MariaDB to Postgres dump method

I am in the process of migrating an app to another server, and will need to migrate the database contents from MariaDB to Postgresql. Most documentation indicates that the following format should ...
0
votes
1answer
143 views

Password Manager Pro backend database MS SQL vs PostgreSQL [closed]

I'm looking to manage users passwords through the programme Password Manager Pro. Reading the documentation it explains that you can use ether your own MS SQL database or use their default PostgreSQL ...
0
votes
2answers
178 views

How do I update YUM repositories to get Postgres9.x version?

I need to install some Postgres9.1 libs, but "yum list" only shows 8.4 version. How to "update" yum repo list to get 9.1 version? My Linux version: # cat /etc/redhat-release Red Hat Enterprise ...
1
vote
1answer
349 views

how to query postgresql database via salt

I need to run a query on a postgresql database in a module I'm writing for Salt. It won't do much, just query a table for a value to determine what version of the software is installed. The docs have ...
0
votes
1answer
409 views

OpenShift allow permanent external access to PostgreSQL [closed]

I have an OpenShift gear with Nginx and PostgreSQL, and need to allow a Java applet (served from Nginx) direct access to the PG database. I've already tried to edit ~/postgresql/conf/postgresql.conf....
1
vote
0answers
648 views

Changing kernel.shmmax and kernel.shmmal on ubuntu?

We have an Ubuntu server with 6GB of RAM. We are trying to install Postgres but it is advising us to increase the values for kernel.shmmax and kernel.shmmal. The server is solely a Postgres DB ...
0
votes
1answer
140 views

Daily postgresql cron error log file

I am getting these emails daily: /etc/cron.daily/logrotate: error: error accessing /var/log/postgresql: No such file or directory error: postgresql-common:1 glob failed for /var/log/postgresql/.log ...
0
votes
1answer
95 views

pg_createcluster ssl cert behaviour different for 9.1 and 9.3 on Debian Squeeze

I think i found a bug in pg_createcluster when creating a 9.3 cluster. At first, my configuration: Debian Squeeze with PostgreSQL 9.1 from squeeze-backports and PostgreSQL 9.3 from apt.postgresql.org (...
1
vote
0answers
33 views

psql: How to include comments in \d output

In PostgreSQL it is possible to add comments to table columns. These will appear in the psql output from the "extended describe" \d+ command, however they will not appear in the standard \d output. ...
2
votes
2answers
301 views

How to minimize bandwidth in frequent postgres backup scenario?

I'm looking to make very frequent backup (every hour) of postgres data on several VMs (say 20-50) towards the same archive server. Here are more data if needed: Ideally, the system should support ...
0
votes
1answer
260 views

How to correctly run PostgreSQL on Fedora

I decided to to run PostgreSQL on my Fedora 20, so I did sudo yum install postgresql-server.x86_64 postgresql-libs.x86_64 postgresql.x86_64 Now if I do postgres -D /var/lib/pgsql/data under ...
1
vote
1answer
106 views

Databbase file structure on disk [closed]

I'm an interested in the fundamentals of databases for a project that I am currently working on. Specifically the physical storage on disk and how rows and indexes are stored in a file. For the most ...
1
vote
1answer
105 views

CentOS / PostgreSQL. How to keep connections open?

I would like to keep connections open on PostgreSQL for N time. I am not having problems keeping PostgreSQL itself open. The issue is that when the connection is idle for a few minutes, the ...
20
votes
3answers
2k views

how to secure an open PostgreSQL port

So, this is the situation. It seems we need to have an open TCP port 5432 to the world, where a customer has access to his PostgreSQL database. For obvious reasons, we can't say just "no", only as a ...
1
vote
1answer
344 views

Postgresql failed to start server (startserver.vbs) on Windows Server 2008 R2 Enterprise (64b)

Trying to install postgresql in a Windows Server R2 Entreprise (64b) I get this: Iniciando el servidor de bases de datos... Executing cscript //NoLogo "C:\PostgreSQL\9.3\installer\server\startserver....
1
vote
1answer
79 views

Most efficient way to upgrade postgresql 9.0.1 to latest minor version

What is the most efficient way to upgrade postgresql to the latest minor version when I'm running an operating system (Fedora Core 10) that's too old to be supported by official RPM releases? I have ...
0
votes
0answers
240 views

`rake db:migrate RAILS_ENV=production` gives error

When I run the command: rake db:migrate RAILS_ENV=production I get the following error: rake aborted! PG::ConnectionBad: could not connect to server: Connection refused Is the server running ...
2
votes
1answer
588 views

Cannot stop service (PostgreSQL) in Ubuntu 14.04 minimal OpenVZ

I'm trying to stop PostgreSQL but this results in a weird error about /proc/: root@dw0wanydbpv14fred:~# service postgresql stop * Stopping PostgreSQL 9.3 database server * Error: /proc must be ...
-2
votes
1answer
394 views

Why am I getting this 404 error trying to install postgresql 8.2 on centos 6?

Im trying to install postgresql 8.2 on centos 6 but when i add the repo for it and do a yum upgrade or try to install the package i get the following error yum upgrade Failed to set locale, ...
2
votes
1answer
1k views

Stop postgresql container

I have a question about stop database container. I have a docker image that runs postgresql. When I create a container with this image: sudo docker run --name db -d asg1612/postgresql it run ...
0
votes
1answer
40 views

A more complex PostgreSQL query log

There are some laws in my country that require me (as a service provider) to have a log which explains which person did what action. Now I know that PostgreSQL has a query log, but I was wondering if ...
0
votes
2answers
322 views

PostgreSQL password issue with psql

I'm trying to setup PostgreSQL onto a CentOS (that I connect through SSH). I need to unzip a package (so not downloading through yum or rpm): http://get.enterprisedb.com/postgresql/postgresql-9.3.4-3-...
0
votes
1answer
148 views

Corosync and Pacemaker deployment

I'm currently working on a deployment architecture for a Postgres HA 1 Master/ 1 Slave scenario. After reading lots and lots of documentation I've decided to start using Pacemaker in conjunction with ...
2
votes
1answer
1k views

PostgreSQL user authentication against PAM

I am trying to set up authentication via PAM for PostgreSQL 9.3. I already managed to get this working on an Ubuntu 12.04 server, but I am unable to get this working on a Centos-6 install. The ...
0
votes
0answers
67 views

PostgreSQL replicate data have different time

I'm notice that when I replicate data between 2 server with different time zone, the time data in PostgreSQL is shifted when I load it to a client (in my case, a Rails console). I thought all ...
3
votes
1answer
608 views

Multiple Postgres Servers (one writer, multiple reader) with Shared Disk

Here's the scenario: One shard disk (Gluster) Multiple Postgres servers Requirements: Use the shared disk to store the database files Use a configuration which provide maximum efficiency ...
0
votes
1answer
105 views

Unaccent for postgresql 9.0.8 (over RHEL6)

I need to install the unaccent extension in a postgresql server 9.0.8 running over a RHEL6 box which doesn't have the contrib package. So I need to install postgresql-crontrib first. Facts: Server ...
0
votes
1answer
350 views

Weblogic security store on PostgreSQL

I am trying to port a Weblogic environment from Oracle to PostgreSQL. When I configure a domain with the security store on PostgreSQL, it fails to start. Weblogic 12c, Java 7, PostgreSQL 9.3.4 here ...
1
vote
1answer
4k views

PostgreSQL failed to start, pg_log shows nothing, what to do?

I've just setup PostgreSQL (9.3) as a replication to another server. When I started it with service postgresql-9.3 start, it reported [FAILED] without any further explanation. I don't see any thing ...
5
votes
1answer
4k views

psycopg2 not found by django after installing in virtualenv

I want to use postgresql with django so did the following: sudo apt-get install libpq-dev python-dev sudo apt-get update workon myenv sudo pip install psycopg2 And after configuring my settings.py ...
4
votes
1answer
9k views

Connect to RDS from EC2 instance — both inside VPC

I have a VPC with two private subnets (two were required to get an RDS instance set up). I have a security group for this VPC, let's call it vpc-sg. vpc-sg allows TCP access on port 22 from my home ...
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votes
1answer
1k views

Psql uses .pgpass file however pg_dump does not, and it also does not connect using the correct password [closed]

Using the following command: % pg_dump -h postgres.cs.host.ca -p 5433 -n _cscf_subscription -Fc -f ~/old.dump odyssey_prod Password: pg_dump: [archiver (db)] connection to database "cs-rsub" failed: ...