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# 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
2. **Current Backend Processes** processes
- active
3. **Write-Ahead Logging Statistics** files/s
- total
- ready
- done
4. **Checkpoints** writes/s
- scheduled
- requested
5. **Current connections to db** count
- connections
6. **Tuples returned from db** tuples/s
- sequential
- bitmap
7. **Tuple reads from db** reads/s
- disk
- cache
8. **Transactions on db** transactions/s
- committed
- rolled back
9. **Tuples written to db** writes/s
- inserted
- updated
- deleted
- conflicts
10. **Locks on db** count per type
- locks
## configuration
For all available options please see module [configuration file](postgres.conf).
```yaml
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`.
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