In this post In this post, we have: FreeBSD 14.1-RELEASE-p5 r730-03 Lots of boring repetitive sections, so skip over that to find what you need This article was written over a couple of days. The zpool in question is 3 pairs of 12TB HDD: [13:44 r730-03 dvl ~/tmp] % zpool status data01 pool: data01 state: ONLINE scan: scrub in progress since Fri Jan 17 05:29:21 2025 22.1T / 26.1T scanned at 200M/s, 19.2T […]
Way too many snapshots Read More »
While I was destroying some snapshots, I found this interesting / disturbing. Why is the same destroy appearing twice, on different TTYs? [16:11 r730-03 dvl ~/tmp] % w | grep air dvl pts/2 air01.startpoint.vpn.unixathome.org 1:04PM 2:18 sudo zfs destroy data01/snapshots/homeassistant-r730-01@autosnap_2024-10-19_22:15:08_frequently dvl pts/1 air01.startpoint.vpn.unixathome.org Fri11PM – w dvl pts/4 air01.startpoint.vpn.unixathome.org 4:11PM – sudo zfs destroy data01/snapshots/homeassistant-r730-01@autosnap_2024-10-19_22:15:08_frequently dvl pts/5 air01.startpoint.vpn.unixathome.org 1:07PM 33 -zsh (zsh) What’s up with that? And why different times? It is not
Why does the same command appear on two different ports with different times? Read More »
This is work from April 2021, and sometimes there is a need to do a jail in a jail. This shows how. I want to testing jail.conf, in a jail. I don’t want to test this on a host, because that might interfere with existing jails. This is related to a FreeBSD code review which will add support for jail.d – that means you can have something like /etc/jail.d.conf/foo.conf which is the configuration
Creating jails in a jail for testing /etc/jail.conf Read More »
What are the chances that three different hosts, in thee different datacenters all display these messages within seconds of each other? The uptimes: [dvl@r720-02:~] $ uptime 1:42PM up 62 days, 15:01, 2 users, load averages: 0.04, 0.12, 0.18 [13:42 tallboy dvl ~] % uptime 1:42PM up 62 days, 15:37, 2 users, load averages: 0.17, 0.37, 0.34 [13:42 zuul dan ~] % uptime 1:42PM up 62 days, 14:56, 2 users, load averages: 0.24, 0.25,
PF states limit reached – on three different host at nearly the same time Read More »
This is not finished. It has been posted for review. When this paragraph is gone, the post is finished. I’ve wanted to convert my subversion repos to git for years. It’s never been a high priority. But here we go. First, I created a local temporary and insure subversion repo with a copy of my real repo. This allows me to mess up and not affect the real repo. I’m sure nothing I’m
Converting a subversion repo to git Read More »
There is much code for FreshPorts which lives in a subversion repository in my basement. I have long wanted to convert that to git and move it to git hub. In this post: FreeBSD 14.1 subversion 1.14.4 Which reminds me: I need to find a tool which backs up Github repos for me. Preferably everything under an organization. Just in case. I will copy the data from my repo to another host and
Setting up a local subversion repository server with nil security Read More »
Yesterday, I added a new drive into the system. Today, I will replace the failing drive with that one. In this post: FreeBSD 14.1 Before [18:23 r730-03 dvl ~] % zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT data01 32.7T 26.0T 6.76T – – 32% 79% 1.00x ONLINE – zroot 412G 18.5G 393G – – 18% 4% 1.00x ONLINE – [18:24 r730-03 dvl ~] % zpool status data01
This morning, I saw this in my logs: In this post: FreeBSD 14.1 r730-03 Looking in he logs, there wasn’t much useful: Searching online, I found swap_pager: cannot allocate bio so I decided to limit ARC size. I’ve done this before, and recently too.. Here is what I added to /boot/loader.conf: I just picked the same value I was using for another host. The values in the file can using units, such as
kernel: swap_pager: cannot allocate bio Read More »
Sometimes you want to go back to a known good state. And you want to do it quickly, without waiting around. In my case, that’s going to be a zfs snapshot. Today I am preparing to test some code changes so that FreshPorts properly creates a new category. See these recent blog posts for details: Welcome to the new category: filesystems Fixing the category creation code In this post: FreeBSD 14.1-RELEASE-p5 postgresql16-server-16.4 dbclone
Let’s talk about zfs hold. Based on man zfs-hold: “If a hold exists on a snapshot, attempts to destroy that snapshot by using the zfs destroy command return EBUSY.” Let’s apply that to some FreshPorts snapshots which I don’t want going away: This is your typical FreshPorts website: [15:03 dvl-nginx01 dvl ~] % zfs list NAME USED AVAIL REFER MOUNTPOINT data02 1.13T 565G 96K none data02/freshports 671G 565G 88K none data02/freshports/jailed 326G 565G
zfs hold / release Read More »