ANNOUNCEMENT: NSD 1.3.0 alpha 1

[Michael Richardson]

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>>>>> "Erik" == Erik Rozendaal <erik at nlnetlabs.nl> writes:
    Erik> When NSD starts it loads the database into memory.  After doing so,
    Erik> it forks of a (configurable) number of child servers to handle UDP
    Erik> and TCP connections.  By default there is a single TCP server and a
    Erik> single UDP server.  The child servers do not modify the database,
    Erik> so the operating system can share the memory pages between the
    Erik> parent process and the child process.  Unfortunately, systems that
    Erik> do not allow memory overcommit will reserve memory anyway.

  Okay, got that.
  But, a *Linux* system in default overcommit mode might kill NSD off
randomly. (or other processes) Solaris does different things.

  If the data can, and should be shared (read-only), then the *correct* thing
is to mmap() things appropriately. That is the right thing to do, even on a
system that supports overcommit.

]      Out and about in Ottawa.    hmmm... beer.                |  firewalls  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net architect[
] mcr at sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another Debian/notebook using, kernel hacking, security guy");  [


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