[Dxspider-support] 1. Cluster started hanging several times a day. (David Spoelstra)

[David Spoelstra]

Dirk-

Thanks! I will try that and report back since it just now hung again.

-David, N9KT


On Thu, Mar 7, 2019 at 6:09 PM Dirk Koopman via Dxspider-support <
dxspider-support at tobit.co.uk> wrote:

> As it happens, this has recently happened to GB7DJK as well. This is
> what I (eventually) did to fix it:
>
> 1. stop the node
> 2. cd /spider/data
> 3. rm users.v3 qsl.v1 dupefile
> 4. perl user_asc
> 5. ../perl/create_qsl.pl
> 6. restart the node
>
> There is a long standing issue with DX_File databases (which are really
> Berkeley DB databases). These are notoriously finicky about only one
> writer and being closed properly. This is why there is a method of
> regenerating them. Now I don't know which of these got whacked (it's
> usually the dupefile) but it is also possible that some operating system
> system update  triggered it. I didn't discover which of them it was, but
> since I have done these things I appear to be running normally again.
>
> As an aside, several years ago, I did try using sqllite3 databases as
> they seemed a possible way forward, but they turned out to be even more
> unreliable. Perhaps I ought to try again now that sqlite3 has become a
> sort of de facto standard for this sort of thing.
>
> Dirk G1TLH
>
> On 07/03/2019 15:32, David Spoelstra via Dxspider-support wrote:
> > Keith, Andy, and Bernard: My RasPi3B is running off a hard drive. I
> > switched it to a hard drive when I replaced the RasPi2B with the
> > RasPi3 because of all the issues you mention.
> >
> > Bernard - it's not the power supply because the RasPi is still running
> > fine and I can do other things with it (abet slowly since the hung
> > spider process is taking so much CPU power). Also, I have this RasPi
> > and another hooked to a GOOD 5V 10A supply and the other RasPi isn't
> > having any problems. The spider process is just essentially dead since
> > it's sitting at about 100% CPU. I just kill the process and
> > immediately restart it and everything is fine for about another day.
> >
> > I just need some more data to debug it. Are there flags to turn on to
> > get more logs? Are there places to look I'm not looking (I've already
> > dug through syslog)?
> >
>
>
> _______________________________________________
> Dxspider-support mailing list
> Dxspider-support at tobit.co.uk
> https://mailman.tobit.co.uk/mailman/listinfo/dxspider-support
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.tobit.co.uk/pipermail/dxspider-support/attachments/20190307/283cb9ec/attachment.html>