! Exception: [Errno 7] Argument list too long: '/bin/sh'

[esromneb]

Command

zfs-autobackup -v --ssh-target servername backupname1 tank/backups --verbose

Results (truncated)

  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a23456789hettoobl8yytd2n: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a234567890os47ypa2zfko8w: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a23456789ny91hnlds96gqdb: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a23456789as24gh4wtw821mt: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a23456789s41jye97aoox7tx: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a234567890os47ypa2zfko8w: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a23456789ny91hnlds96gqdb: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a23456789as24gh4wtw821mt: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/lib/a23456789s41jye97aoox7tx: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/log: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/mail: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/snap: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/spool: Selected
  [Source] rpool/ROOT/ubuntu_fyzx9a/var/www: Selected
  [Source] rpool/USERDATA: Selected
  [Source] rpool/USERDATA/root_abce61: Selected

  #### Snapshotting
  [Source] Creating snapshots backupname1-20250117002901 in pool bpool
  [Source] Creating snapshots backupname1-20250117002901 in pool rpool
! Exception: [Errno 7] Argument list too long: '/bin/sh'

Explanation

I have a huge number of datasets, almost 1450 in number. My source machine is Ubuntu 20.04 focal. This version of linux added autozsys which was under cooked at the time of release. It just keeps adding snapshots and they are never actually deleted. I was trying to backup all of rpool at once and I ran into this issue. I'm able to reduce the scope of my backup, and avoid this, but I just thought I would bring this up.

[psy0rz]

Can you do this:

$ getconf ARG_MAX
2097152

(This is ubuntu 22)

I think ubuntu 20 only has 128Kb or something like that.

[esromneb]

On my Ubuntu 20.04 I get the same as you:

# getconf ARG_MAX
2097152