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netdata_netdata/collectors/python.d.plugin/postgres
Paweł Krupa d47ca7429d
remove unused variables ()
##### Summary
<!--- Describe the change below, including rationale and design decisions -->
Removing variables which are not used in Python code
<!--- HINT: Include "Fixes #nnn" if you are fixing an existing issue -->

##### Component Name
<!--- Write the short name of the module or plugin below -->
- python.d.plugin
- portcheck python module
- postgres python module

##### Additional Information
<!--- Include additional information to help people understand the change here -->
<!--- A step-by-step reproduction of the problem is helpful if there is no related issue -->

<!--- Paste log output below, e.g. before and after your change -->
```paste below

```
2018-10-19 10:29:56 +02:00
..
Makefile.inc Fix make dist () 2018-10-16 15:26:28 +03:00
postgres.chart.py remove unused variables () 2018-10-19 10:29:56 +02:00
postgres.conf modularized all source code () 2018-10-15 23:16:42 +03:00
README.md modularized all source code () 2018-10-15 23:16:42 +03:00

postgres

Module monitors one or more postgres servers.

Requirements:

  • python-psycopg2 package. You have to install it manually.

Following charts are drawn:

  1. Database size MB
  • size
  1. Current Backend Processes processes
  • active
  1. Write-Ahead Logging Statistics files/s
  • total
  • ready
  • done
  1. Checkpoints writes/s
  • scheduled
  • requested
  1. Current connections to db count
  • connections
  1. Tuples returned from db tuples/s
  • sequential
  • bitmap
  1. Tuple reads from db reads/s
  • disk
  • cache
  1. Transactions on db transactions/s
  • committed
  • rolled back
  1. Tuples written to db writes/s
  • inserted
  • updated
  • deleted
  • conflicts
  1. Locks on db count per type
  • locks

configuration

socket:
  name         : 'socket'
  user         : 'postgres'
  database     : 'postgres'

tcp:
  name         : 'tcp'
  user         : 'postgres'
  database     : 'postgres'
  host         : 'localhost'
  port         : 5432

When no configuration file is found, module tries to connect to TCP/IP socket: localhost:5432.