[mythtv] Temporarily unresponsive BE

Warpme warpme at o2.pl
Tue Jul 20 18:24:56 UTC 2010


Hi *

 From some time I have issue which is strongly decreasing WAF in my 0.23 
25365 system.
Namely:
When my DVB-S2 tuner fails to tune properly, my BE enters state where I 
can't launch LiveTV o Recordings on any FE.
Any attempt gives below logs on BE/FE.
For restoring BE to operational state I have to:
-restart it, or
-wait few minutes.

As during this time BE is unresponsive so no any FE can watch TV, WAF is 
highly decreased.
It also makes perception about low myth stability which isn't true in fact.

Is there any way to workaround this issue or minimize 
waiting_to_become_responsive time ?

Thx in advance

BE error log:

2010-07-20 19:30:56.477 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa46877f0)
2010-07-20 19:30:56.477 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa46877f0)
2010-07-20 19:30:56.478 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa461aa18)
2010-07-20 19:30:56.478 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa461aa18)
2010-07-20 19:30:56.479 MythSocket(ffffffffa46877f0:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 21 bytes with 1 errors
2010-07-20 19:30:56.479 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa4685dd0)
2010-07-20 19:30:56.480 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa4685dd0)
2010-07-20 19:30:56.480 MythSocket(ffffffffa461aa18:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 21 bytes with 1 errors
2010-07-20 19:30:56.480 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa46879d0)
2010-07-20 19:30:56.490 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa46879d0)
2010-07-20 19:30:56.481 MythSocket(ffffffffa4685dd0:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 21 bytes with 1 errors
2010-07-20 19:30:56.481 adding: fe-salon as a remote file transfer
2010-07-20 19:30:56.487 adding: fe-salon as a client (events: 0)
2010-07-20 19:30:56.492 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa462f2e0)
2010-07-20 19:30:56.491 adding: fe-salon as a remote file transfer
2010-07-20 19:30:56.491 MythSocket(ffffffffa46879d0:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 21 bytes with 1 errors
2010-07-20 19:30:56.481 adding: fe-salon as a client (events: 0)
2010-07-20 19:30:56.496 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa46304d0)
2010-07-20 19:30:56.496 MythSocket(ffffffffa462f2e0:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 10 bytes with 1 errors
2010-07-20 19:30:56.495 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa4686af8)
2010-07-20 19:30:56.499 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa4686af8)
2010-07-20 19:30:56.499 adding: fe-salon as a client (events: 0)
2010-07-20 19:30:56.500 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa4686ca8)
2010-07-20 19:30:56.498 MythSocket(ffffffffa46304d0:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 10 bytes with 1 errors
2010-07-20 19:30:56.503 adding: fe-salon as a remote file transfer
2010-07-20 19:30:56.500 MythSocket(ffffffffa4686af8:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 21 bytes with 1 errors
2010-07-20 19:30:56.502 ProgramInfo(): Updated pathname '':'' -> 
'9085_20100720190000.mpg'
2010-07-20 19:30:56.515 MythSocket(ffffffffa4686ca8:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 10 bytes with 1 errors
2010-07-20 19:30:56.518 ProgramInfo(): Updated pathname '':'' -> 
'9085_20100720190000.mpg'
2010-07-20 19:30:56.509 ProgramInfo(): Updated pathname '':'' -> 
'9085_20100720125000.mpg'
2010-07-20 19:30:56.597 ProgramInfo(): Updated pathname '':'' -> 
'9085_20100720190000.mpg'
2010-07-20 19:30:56.635 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa461bff0)
2010-07-20 19:30:56.638 MythSocket(ffffffffa461bff0:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 37 bytes with 1 errors
2010-07-20 19:30:56.665 ProgramInfo(): Updated pathname '':'' -> 
'9085_20100720190000.mpg'
2010-07-20 19:30:56.676 ProgramInfo(): Updated pathname '':'' -> 
'9085_20100720125000.mpg'
2010-07-20 19:30:56.684 MainServer, Warning: Unknown socket closing 
MythSocket(0xffffffffa13d2208)
2010-07-20 19:30:56.689 MainServer, Warning: Unknown socket closing 
MythSocket(0x9bf6368)
2010-07-20 19:30:56.691 MythSocket(ffffffffa13d2208:-1): 
writeStringList: Error, socket went unconnected.
             We wrote 0 of 37 bytes with 1 errors
2010-07-20 19:30:56.691 MythSocket(9bf6368:-1): writeStringList: Error, 
socket went unconnected.
             We wrote 0 of 39 bytes with 1 errors

FE error log:

2010-07-20 19:29:45.615 MythSocket(ffffffff9b18f0b0:54): readStringList: 
Error, timed out after 7000 ms.
2010-07-20 19:29:45.615 RemoteFile::openSocket(control socket), Error: 
Failed to open socket, timeout
2010-07-20 19:29:52.618 MythSocket(ffffffff9b428b90:45): readStringList: 
Error, timed out after 7000 ms.
2010-07-20 19:29:52.618 RemoteFile::openSocket(file data socket), Error: 
Failed to open socket, timeout
2010-07-20 19:29:52.618 RingBuffer::RingBuffer(): Failed to open remote 
file (myth://192.168.1.254:6543/9085_20100720190000.mpg)
2010-07-20 19:29:53.777 mythbackend version: branches/release-0-23-fixes 
[Unknown] www.mythtv.org
2010-07-20 19:29:53.777 Using runtime prefix = /usr
2010-07-20 19:29:53.777 Using configuration directory = 
/home/minimyth/.mythtv
2010-07-20 19:29:53.778 Using localhost value of FE-Salon
2010-07-20 19:29:53.779 Testing network connectivity to '192.168.1.254'
2010-07-20 19:29:53.789 New DB connection, total: 1
2010-07-20 19:29:53.791 Connected to database 'mythconverg' at host: 
192.168.1.254
2010-07-20 19:29:53.791 Closing DB connection named 'DBManager0'
2010-07-20 19:29:53.792 Connected to database 'mythconverg' at host: 
192.168.1.254
2010-07-20 19:30:04.751 MythSocket(ffffffff9b1914f8:51): readStringList: 
Error, timed out after 7000 ms.
2010-07-20 19:30:04.751 RemoteFile::openSocket(control socket), Error: 
Failed to open socket, timeout
2010-07-20 19:30:11.754 MythSocket(ffffffff9b11f638:51): readStringList: 
Error, timed out after 7000 ms.
2010-07-20 19:30:11.754 RemoteFile::openSocket(file data socket), Error: 
Failed to open socket, timeout
2010-07-20 19:30:11.755 RingBuffer::RingBuffer(): Failed to open remote 
file (myth://192.168.1.254:6543/9085_20100720125000.mpg)
2010-07-20 19:30:23.805 MythSocket(89c3958:8): readStringList: Error, 
timed out after 30000 ms.
2010-07-20 19:30:23.805 Protocol version check failure.
             The response to MYTH_PROTO_VERSION was empty.
             This happens when the backend is too busy to respond,
             or has deadlocked in due to bugs or hardware failure.
2010-07-20 19:30:23.805 Master backend is incompatible with this backend.
Cannot become a slave.
2010-07-20 19:30:23.819 Preview Error: Encountered problems running 
'/usr/bin/mythbackend --generate-preview 0x0 --chanid 9085 --starttime 
20100720125000 '


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