jimklimov

(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

jimklimov

`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`

jimklimov

host github.com
    user git
    hostname ssh.github.com
    port 443
    proxycommand socat - PROXY:<hostname>:%h:%p,proxyport=<port>

jimklimov

// 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

jimklimov

#!/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 () {