[mythtv-users] Remotely monitor Backend is running

[Barry Martin]

Hi Stephen!

> That message means that you did not use the -n option to tell it which
> PC to talk to, so it tried to find a database on the local PC to get
> the address and port number from.  As there is no local database, it
> was unable to connect to it and gives you that message.  Getting that
> message means that you have all the required Python modules, so that
> is good news.
>
>> Try changing HOST= ?localhost? to using the IP address of the Backend?.
>> same error.
> I am not sure what you did there - what you need to do is use -n <IP
> address> on the command line.


Last part first: within the python script I had changed


HOST = 'localhost'

PORT = 6544


to


HOST = ‘192.168.4.3’

PORT = 6544


The IP address being that of the Backend.



Back to the first section, adding the -n switch…


 From your Python script:

parser.add_argument('-n', '--host', action='store', help='MythTV backend 
hostname or IP address (default: '+host+')')


Well, that’s where the -n comes from (my ‘cookbook’ learning and 
patching together isn’t the best way!)


python '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py' -n 192.168.4.3

Unable to get BackendStatusPort settings from MythTV database, using 
defaults



python '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py -n 192.168.4.3'

python: can't open file '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py -n 192.168.4.3': [Errno 2] No 
such file or directory



python '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py' -n --host 192.168.4.3

Unable to get BackendStatusPort settings from MythTV database, using 
defaults

usage: test-mythbackend_v1_3-101421.py [-h] [-V] [-n HOST] [-p PORT]

test-mythbackend_v1_3-101421.py: error: argument -n/--host: expected one 
argument



python '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py' -n --host '192.168.4.3'

Unable to get BackendStatusPort settings from MythTV database, using 
defaults

usage: test-mythbackend_v1_3-101421.py [-h] [-V] [-n HOST] [-p PORT]

test-mythbackend_v1_3-101421.py: error: argument -n/--host: expected one 
argument



python '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py' -n 192.168.4.3

Unable to get BackendStatusPort settings from MythTV database, using 
defaults


- - -


python '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py' -h

Unable to get BackendStatusPort settings from MythTV database, using 
defaults

usage: test-mythbackend_v1_3-101421.py [-h] [-V] [-n HOST] [-p PORT]


Test that mythbackend is running and responding to API calls (Version: 1.3)


optional arguments:

-h, --help show this help message and exit

-V, --version

display the version number and exit

-n HOST, --host HOST

MythTV backend hostname or IP address (default: localhost)

-p PORT, --port PORT

MythTV backend API port number (default: 6544)



python '/home/barry/MythTV Backend 
Scripts/test-mythbackend_v1_3-101421.py' -V

Unable to get BackendStatusPort settings from MythTV database, using 
defaults

Version 1.3



It seems like from Terminal I’m not passing the host’s IP address on to 
the Python script.


For ‘fun’ cd’d to the subdirectory so I’m working where the Python 
script is – same error.


OK, now you get to tell me what simple little thing I’m overlooking! And 
just for more fun checked:


barry at NZXT:~/MythTV Backend Scripts$ ping -c2 192.168.4.3

PING 192.168.4.3 (192.168.4.3) 56(84) bytes of data.

64 bytes from 192.168.4.3: icmp_seq=1 ttl=64 time=0.206 ms

64 bytes from 192.168.4.3: icmp_seq=2 ttl=64 time=0.150 ms


--- 192.168.4.3 ping statistics ---

2 packets transmitted, 2 received, 0% packet loss, time 1005ms

rtt min/avg/max/mdev = 0.150/0.178/0.206/0.028 ms

barry at NZXT:~/MythTV Backend Scripts$ ping -c2 192.168.4.3 -p 6544

PATTERN: 0x6544

PING 192.168.4.3 (192.168.4.3) 56(84) bytes of data.

64 bytes from 192.168.4.3: icmp_seq=1 ttl=64 time=0.184 ms

64 bytes from 192.168.4.3: icmp_seq=2 ttl=64 time=0.193 ms


--- 192.168.4.3 ping statistics ---

2 packets transmitted, 2 received, 0% packet loss, time 1007ms

rtt min/avg/max/mdev = 0.184/0.188/0.193/0.014 ms


Thanks!

Barry




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