[HECnet] KLH-10 TOPS-10 DECnet Executor Configuration Persistence

------------------------------------------------------------------------ On 3/10/20 9:46 PM, Thomas DeBellis wrote: I think you're right, but it has been _decades_ since I last used Tops-10.? At WPI, we had a KA-10 running a much modified 6.03 series monitor that we were quite proud of.? At Marlboro, the project that I was working on (FILE-FINDER, a database for DUMPER tapes) was quite Tops-20 centric; we depended on files with holes in them. I'm unaware of any systems level structured data store in either Tops-10 or Tops-20 with the exception of the Quasar failsoft file (QSRFSS, holds queue, print, batch requests across crashes).? I don't find this surprising; if you crash and corrupt a file with confuration information in it, a flat ASCII file is whaaay easier to recover than an specially engineered database.? The binary accounting and error files are sequential and don't count, IMHO. Under Tops-20, we used the following 'trick' for start-up speed and persisted configuration.? The configuration file was 'compiled' into binary and directly mapped into memory on start-up. 1. This was necessary for LPTSPL as it is started up for jobs, but shut down and put into a quiescent state when there is nothing left to print.? When you have a lot of printers, reparsing LPFORM.INI can be a real dog.? Very noticeable. 2. I got the idea from the mailer, which does the same thing for mailing-list.txt 3. The EXEC will also do it; you can restore a binary environment with all your special scripts really fast (like on PUSH or LOGIN) 4. I had been thinking about doing this for the Extended Mode FTP server, but I'm not sure it's worth it.? I instrumented the start up time and it's in the milliseconds.? Probably would be necessary for a couple hundred simultaneous small requests. If I ever get truly serious about supporting Galaxy again, then probably I'll bite the bullet and put up Tops-10 so I can validate execution. > ------------------------------------------------------------------------ > On 3/10/20 9:25 PM, Johnny Billquist wrote: > > I've never used Tops-10 as an operator, so I can't answer most of > this, but one question I think I can... > > My understanding is that neither Tops-10, nor TOPS-20 have a > persistent database. Instead you need to have a script that does all > the definitions, and you need to run it at every boot. But I could > be confused about that one. >> ------------------------------------------------------------------------ >> On 2020-03-11 01:50, Supratim Sanyal wrote: >> >> KLH-10 TOPS-10 noob questions: >> >> 1) At the TOPS-10 boot startup option prompt, I can type in CHANGE >> and then set the DECnet address. How do I make it persist across >> reboots and not have to do this every time?