Re: POWA tool

On Fri, Aug 22, 2014 at 4:40 PM, Ramesh T <rameshparnanditech(at)gmail(dot)com>
wrote:

> How to include pg_stat_statements in postgres.conf.powa is need it.
>
> any help..
>
>
> Below are the steps to Install POWA Tool:

*Step 1:* Download POWA tool from below Website

> https://github.com/dalibo/powa/archive/REL_1_1.zip

*Step 2:* Unpack the Downloaded file

> [root(at)localhost tmp]# cd /tmp/
> [root(at)localhost powa-REL_1_1]# unzip powa-REL_1_1.zip

*Step 3:* Install POWA Software

> [root(at)localhost powa-REL_1_1]# export PATH=/opt/PostgreSQL/9.3/bin:$PATH
> [root(at)localhost powa-REL_1_1]# export
> LD_LIBRARY_PATH=/opt/PostgreSQL/9.3/lib:$LD_LIBRARY_PATH
> [root(at)localhost powa-REL_1_1]# make install
> gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
> -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute
> -Wformat-security -fno-strict-aliasing -fwrapv -fpic -I. -I.
> -I/opt/PostgreSQL/9.3/include/postgresql/server
> -I/opt/PostgreSQL/9.3/include/postgresql/internal -D_GNU_SOURCE
> -I/opt/local/20140108/fc7f8f12-7861-11e3-aaff-000c29d23b02/include/libxml2
> -I/usr/local/include/libxml2 -I/usr/local/include -c -o powa.o powa.c
> gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
> -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute
> -Wformat-security -fno-strict-aliasing -fwrapv -fpic
> -L/opt/PostgreSQL/9.3/lib
> -L/opt/local/20140108/fc7f8f12-7861-11e3-aaff-000c29d23b02/lib
> -L/usr/local/lib -Wl,--as-needed
> -Wl,-rpath,'/opt/PostgreSQL/9.3/lib',--enable-new-dtags -shared -o powa.so
> powa.o
> /bin/mkdir -p '/opt/PostgreSQL/9.3/share/postgresql/extension'
> /bin/mkdir -p '/opt/PostgreSQL/9.3/share/postgresql/extension'
> /bin/mkdir -p '/opt/PostgreSQL/9.3/lib/postgresql'
> /bin/mkdir -p '/opt/PostgreSQL/9.3/doc/postgresql/extension'
> /usr/bin/install -c -m 644 ./powa.control
> '/opt/PostgreSQL/9.3/share/postgresql/extension/'
> /usr/bin/install -c -m 644 ./powa--1.0.sql ./powa--1.1.sql
> '/opt/PostgreSQL/9.3/share/postgresql/extension/'
> /usr/bin/install -c -m 755 powa.so '/opt/PostgreSQL/9.3/lib/postgresql/'
> /usr/bin/install -c -m 644 ./README.md
> '/opt/PostgreSQL/9.3/doc/postgresql/extension/'
>
*Step 4:* Create a POWA database & Create requires extensions

> -bash-4.1$ /opt/PostgreSQL/9.3/bin/psql -p 5435
> Password:
> psql.bin (9.3.5)
> Type "help" for help.
> postgres=# create database powa;
> CREATE DATABASE
> postgres=# \c powa
> You are now connected to database "powa" as user "postgres".
> powa=# create extension pg_stat_statements ;
> CREATE EXTENSION
> powa=# create extension btree_gist ;
> CREATE EXTENSION
> powa=# create extension powa;
> CREATE EXTENSION
> powa=# \dt
> List of relations
> Schema | Name | Type | Owner
> --------+---------------------------------+-------+----------
> public | powa_functions | table | postgres
> public | powa_last_aggregation | table | postgres
> public | powa_last_purge | table | postgres
> public | powa_statements | table | postgres
> public | powa_statements_history | table | postgres
> public | powa_statements_history_current | table | postgres
> (6 rows)

*Step 5:* add "power" & "pg_stat_statements" in the
shared_preload_libraries in postgresql.conf file

> -bash-4.1$ more /opt/PostgreSQL/9.3/data/postgresql.conf |grep
> shared_preload
> # Note: Increasing max_prepared_transactions costs ~600 bytes of shared
> memory
> shared_preload_libraries = 'powa,pg_stat_statements' # (change requires
> restart)

-bash-4.1$ /opt/PostgreSQL/9.3/bin/pg_ctl -D /opt/PostgreSQL/9.3/data/ start
> server starting
> -bash-4.1$ 2014-07-25 03:48:20 IST LOG: registering background worker
> "powa"
> 2014-07-25 03:48:20 IST LOG: loaded library "powa"
> 2014-07-25 03:48:20 IST LOG: loaded library "pg_stat_statements"
> 2014-07-25 03:48:20 IST LOG: redirecting log output to logging collector
> process
> 2014-07-25 03:48:20 IST HINT: Future log output will appear in directory
> "pg_log".

*Step 6:* Install Mojolicious Software

> [root(at)localhost ui]# pwd
> /tmp/powa-REL_1_1/ui
> [root(at)localhost ui]# ls -l
> total 36
> drwxr-xr-x 4 root root 4096 Aug 19 2014 lib
> -rw-r--r-- 1 root root 393 Jul 25 04:05 powa.conf
> -rw-r--r-- 1 root root 393 Aug 19 2014 powa.conf-dist
> drwxr-xr-x 6 root root 4096 Aug 19 2014 public
> -rw-r--r-- 1 root root 2121 Aug 19 2014 README.md
> drwxr-xr-x 2 root root 4096 Aug 19 2014 script
> drwxr-xr-x 2 root root 4096 Aug 19 2014 t
> drwxr-xr-x 6 root root 4096 Aug 19 2014 templates
> -rw-r--r-- 1 root root 4 Aug 19 2014 VERSION

[root(at)localhost ui]# cp powa.conf-dist powa.conf
>

[root(at)localhost ~]# /usr/bin/curl get.mojolicio.us | sh
> % Total % Received % Xferd Average Speed Time Time Time
> Current
> Dload Upload Total Spent Left
> Speed
> 0 54 0 54 0 0 179 0 --:--:-- --:--:-- --:--:--
> 184
> % Total % Received % Xferd Average Speed Time Time Time
> Current
> Dload Upload Total Spent Left
> Speed
> 100 262k 100 262k 0 0 70788 0 0:00:03 0:00:03 --:--:--
> 120k
> --> Working on Mojolicious
> Fetching http://www.cpan.org/authors/id/S/SR/SRI/Mojolicious-5.33.tar.gz
> ... OK
> Configuring Mojolicious-5.33 ... OK
> Building Mojolicious-5.33 ... OK
> Successfully installed Mojolicious-5.33
> 1 distribution installed

[root(at)localhost ui]# morbo script/powa
> [Tue Aug 26 00:46:29 2014] [debug] Reading configuration file
> "/tmp/powa-REL_1_1/ui/powa.conf".
> [Tue Aug 26 00:46:29 2014] [info] Listening at "http://*:3000".
> Server available at http://127.0.0.1:3000.

*Step 7: *Run http://127.0.0.1:3000 in web browser.

Thanks & Regards

Raghu Ram