On Feb 20 09:25, Achim Gratz wrote: > Corinna Vinschen writes: > > This release introduces a revision of the LDAP calls done to fetch > > information from the DC. By limiting the search scope, the calls should > > now be faster even in bigger environments. Please give it a try with > > activated "db" settings for passwd and group entries in /etc/nsswitch.conf > > > > passwd: db > > group: db > > > > Please report back your experience, especially if you're suffering > > from "slow startup" problems. > > I'm still suffereing from slow startup problems over VPN, but I don't > think it's the LDAP calls. As noted over in another thread the startup > of tcsh takes a long time to start over a slow / long latency connection > (the home directory is on a network share).
And it's fast with other shells? Bash is reading/writing a history file, too, for instance... > About half of that slowness > is the history file load (saving the history on shutdown is also very > slow), so either tcsh does something really stupid there or Cygwin does > interact badly with how it tries to read/write these files. There is > nothing happening network or CPU wise, so it feels very much like > repeatedly hitting timeouts. I can't debug this. Care to strace it to find out where the problem might be? Is that a 1.7.34+ problem? Hmm. On second thought, this might still be an LDAP problem. I have a hunch, and it's related to https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nfs https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-samba But we need to discuss and debug this. From me crummy little home network I have a hard time to see issues like that. > Another thing I noticed is that pasting into an SSH connection often > leaves the last few characters off and you need to hit another key to > get them displayed. Not sure if this is related, but I seem to remember > that this had been reported before and may be a regression. One bug report at a time would be nice... This could be related to the changes in tty read/write related to https://cygwin.com/ml/cygwin-developers/2014-11/msg00000.html but I have only 24h per day for hacking and debugging, too. Sans sleep, sorry. > Lastly, running cygserver to cache the LDAP data has another side-effect > when using VPN. Since the cygserver is usually started before you've > dialed into the VPN, your username and some groups will get reported as > "DOM+User(12345)". You have to restart cygserver after the VPN is up to > correct that. Yep. We should contemplate to allow sending a signal to cygserver to invalidate its cache. Somebody would have to code that. Sigh. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat
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