[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Abandoned CVS server processes
From: |
Larry Jones |
Subject: |
Re: Abandoned CVS server processes |
Date: |
Thu, 7 Mar 2002 14:15:26 -0500 (EST) |
Dan Peterson writes:
>
> I've seen ESTABLISHED and IDLE.
That's interesting, there is no official TCP state called IDLE. I
wonder what it means? Certainly both states imply that the connection
is alive and well as far as the system can determine.
> 1. Only a single process exists and it's parent is "inet". Perhaps this
> is normal, if the client doesn't disconnect after each request? WinCVS is
> just a front end for a DOS command interface isn't it? So wouldn't that
> mean the connection should only remain open for a long checkout or commit
> (or update or tag, etc)?
Correct. Having a single process is typical of a server that isn't
executing a CVS subcommand at the moment, but is rather processing the
client/server protocol.
> These processes appear to be in some kind of wait state and don't seem to
> be using any CPU time. Using truss I've found them in read(), poll() and
> write() calls. They have been hanging around for several hours.
>
> This appears like it might be the case you described where the client went
> away and TCP is waiting around?
Most likely. It sounds like the server is waiting for a command from
the client.
> 2. Two processes; the first has a parent of "inet" and it's child seems
> to be spinning and using lots of CPU (after about 34 hours one process has
> used about 24 hours of CPU). The sockets associated with the first
> process are in an IDLE state.
That would indicate a bug in CVS.
> I attached to each of the processes in this state with gdb and determined
> they were spinning in a tight loop inside rcs.c:translate_symtag().
This is a bug that I just recently fixed -- translate_symtag would go
into an infinite loop if the tag was "".
-Larry Jones
My life needs a rewind/erase button. -- Calvin
- Abandoned CVS server processes, Dan Peterson, 2002/03/03
- Re: Abandoned CVS server processes, Stewart Brodie, 2002/03/04
- Re: Abandoned CVS server processes, Larry Jones, 2002/03/04
- Re: Abandoned CVS server processes, Dan Peterson, 2002/03/06
- Re: Abandoned CVS server processes,
Larry Jones <=
- Re: Abandoned CVS server processes, Dan Peterson, 2002/03/07
- CVS "Official" Releases, Dan Peterson, 2002/03/08
- Connection hijacking, Brian Smith, 2002/03/08
- Re: CVS "Official" Releases, Larry Jones, 2002/03/09
- Re: Abandoned CVS server processes, David Fuller, 2002/03/08
- Re: Abandoned CVS server processes, Larry Jones, 2002/03/08
- Re: Abandoned CVS server processes, Dan Peterson, 2002/03/14
- Re: Abandoned CVS server processes, Larry Jones, 2002/03/15