| #!/bin/sh -e | |
| # This shell script demonstrates how to use the local keyword to create | |
| # dynamically-scoped variables in various shells. Notably, this technique works | |
| # with AT&T ksh, as well as bash, dash, mksh, pdksh, zsh, busybox sh, and other | |
| # Debian Policy-compliant sh implementations. | |
| # Simple Perl-compatible testing framework. Produces TAP output. | |
| COUNT=0 | |
| is () { |
| // List currently known Jenkins jobs along with their status and labels, if any. | |
| // Primary use-case for us is to find enabled obsolete jobs, we have a few | |
| // we don't want deleted just yet, and to avoid enabled jobs without an agent | |
| // label assigned so they are not picked up by random unsuitable machines. | |
| import hudson.model.Job | |
| //getAllItems searches a global lookup table of items regardless of folder structure | |
| Jenkins.instance.getAllItems(Job.class).each { Job job -> | |
| String jobLabelString |
| host github.com | |
| user git | |
| hostname ssh.github.com | |
| port 443 | |
| proxycommand socat - PROXY:<hostname>:%h:%p,proxyport=<port> |
| `systemctl log-level debug`, previously `systemd-analyze log-level debug`, or a specific signal (see systemd(1)) | |
| for a single invokation can pass the envvar, e.g.: `SYSTEMD_LOG_LEVEL=debug systemctl daemon-reexec` |
| (2020-08-10 02:40:30) jimklimov: cheers all who won't sleep :) doing some ZFS replications and hit that annoyance again about how slow it is to `zfs recv` many small snapshots. Is there some tunable to speed it up a bit? Looking at speed numbers in the console, it seems that for every incremental snapshot it spends over 60s regardless of size. So empty 312byte snapshots take a minute at average 5 b/s, and larger multimegabyte snaps take 70s, and huge ones average at relatively decent looking speeds in MB/s range. What can I do to not wait that 1 minute every snap? | |
| (02:47:40) jimklimov: looking at the consoles, I see it doing zero I/O on source and destination pools (zpool iostat 1), then the send|recv pipe says "receiving incremental stream of X into Y" and there is a burst of I/O for a second, and the pipe logs how it received a few kilobytes in a lot of seconds... | |
| (02:58:43) jimklimov: using Adam's scripts from http://dtrace.org/blogs/ahl/2014/08/31/openzfs-tuning/ I see that the destination pool txg-syncin |
| # Add-on logic for OBS server config to allow only certain hosts to build certain projects | |
| # For specific build constraints, for example to require a specific | |
| # security level of the workers. | |
| # Return 0 (false) if this worker is not suitable for this job. | |
| # Return 1 (true) to allow execution of this job on this worker. | |
| # Used from bs_dispatch via | |
| # { next if !$BSConfig::dispatch_constraint->($ic->{$job}, $workerinfo{$idle}); } | |
| # |
| # User ssh configuration file ~/.ssh/config | |
| # Gist https://gist.github.com/terrywang/3997931 | |
| # man ssh_config for more information | |
| # Inspired by the blog post below to fight the NSA | |
| # https://stribika.github.io/2015/01/04/secure-secure-shell.html | |
| # Outside of the firewall, with HTTPS proxy | |
| # Package connect-proxy is required. | |
| # Amazon EC2 |
Add the following chunk to your existing ISC dhcpd.conf file.
if exists user-class and ( option user-class = "iPXE" ) {
filename "http://boot.smidsrod.lan/boot.ipxe";
}
else {
filename "undionly.kpxe";
}
(or see https://gist.github.com/4008017 for a more elaborate setup
The goal was to be able to perform a network install of OmniOS from a Debian system.
I know there is refinement that can take place in this process (and these notes), but this got me up and running.
All testing took place on a Mac running VirtualBox with the extra extensions installed to allow for PXE booting. However I cannot see why this wouldn't work on real hardware in a network that is already setup to do PXE installs.
I setup:
| Installing prereqs on OpenIndiana for maximum build | |
| Achievable setup and result: | |
| ./configure --with-all --with-dev --with-doc=auto --without-modbus | |
| gmake all -j8 | |
| gmake check | |
| Prereqs: | |
| pkg install gnu-make automake autoconf \ |