[mythtv-users] mythtv v31 slave backend help needed

Jim Abernathy jfabernathy at gmail.com
Sun Jul 19 20:48:28 UTC 2020


On 7/19/20 1:15 PM, Bill Meek wrote:
> On 7/19/20 10:43 AM, James Abernathy wrote:
>>
>>
> When I was using a remote BE, I didn't mount/share/... anything from 
> the remote backend.
>
> I see your point. And, in the mythtv-setup log:
>
>   mythuifilebrowser.cpp:613 (updateLocalFileList) - MythUIFileBrowser: 
> current directory does not exist!
>
> The Services API isn't as picky. Verify the host name known to MythTV
> (it takes into account any LocalHostName in config.xml) with this:
>
>   curl localhost:6544/Myth/GetHostName
>
> This works, but don't use /tmp/blah!:
>
>   curl --data GroupName=Default --data DirName=/tmp/blah --data 
> HostName=yourHostName localhost:6544/Myth/AddStorageGroupDir
>
> You can substitute RemoveStorageGroupDir for AddStorageGroupDir if a 
> typo is made.
>
>> This is where I'm getting my Storage Group information and I can't 
>> seem to make it work.  The errors I'm getting are related to the 
>> recordings not being accessible.
>>
>> https://www.mythtv.org/wiki/Setup_Storage_Directories#Multiple_Backends
>
> Good choice (and, no I didn't write it.)
>
> This API displays existing Storage Group entries. You can look at it 
> in a browser with
>
>   yourBackend:6544/Myth/GetStorageGroupDirs
>
> Or, from the command line (you likely need to install the 
> libxml2-utils package.)
> Note the trailing dash:
>
>   curl --silent localhost:6544/Myth/GetStorageGroupDirs | xmllint 
> --format -
>
> Here's my 'Default' SG as an example. Note that the HostName is 'mc0', 
> which is my main backend:
>
> curl --silent 
> localhost:6544/Myth/GetStorageGroupDirs?GroupName=Default | xmllint 
> --format -
> <?xml version="1.0" encoding="UTF-8"?>
> <StorageGroupDirList 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" 
> serializerVersion="1.1">
>   <StorageGroupDirs>
>     <StorageGroupDir>
>       <Id>55</Id>
>       <GroupName>Default</GroupName>
>       <HostName>mc0</HostName>
>       <DirName>/srv/mythtv-0/recordings/</DirName>
>       <DirRead>true</DirRead>
>       <DirWrite>true</DirWrite>
>       <KiBFree>37060992</KiBFree>
>     </StorageGroupDir>
>
>     ... omitted others that are on the main backend
>
>     <StorageGroupDir>
>       <Id>40</Id>
>       <GroupName>Default</GroupName>
>       <HostName>mc0</HostName>
> <DirName>/var/lib/mythtv/remote/recordings/</DirName> # This path 
> doesn't exist on the main backend
>       <DirRead>false</DirRead>
>       <DirWrite>false</DirWrite>
>       <KiBFree>4294967295</KiBFree>
>     </StorageGroupDir>
>   </StorageGroupDirs>
> </StorageGroupDirList>
>
So how to you create the 
<DirName>/var/lib/mythtv/remote/recordings/</DirName> # This path 
doesn't exist on the main backend??

I can't see how to create a mount point on the master backend that 
doesn't exist except on the slave backend. Certainly can't do it with 
mythtv-setup unless I'm missing a magic button somewhere.

In my setup I created a path on the slave backend that also existed on 
the master backend.  So when recordings are being done on the slave 
those files get recording in that directory on the slave.

I just can't see how to setup the non-existent directory on the master 
that does exist on the slave.

Jim A




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