:description: Read what ljos doctor prints, which rows fail, and when it exits 1.
:cover: https://leidarljos.github.io/ljos/_static/og.png

==============
Check the seat
==============


``ljos doctor`` prints whether the seat is ready and the rows that need action, and exits 1 when a required part does not answer or the note queue is damaged.
``ljos doctor --all`` prints every row.

The block is the ``ljos`` row from that command on a scratch seat, taken from ljos 0.41.6.

``ljos --version`` printed ``ljos 0.41.6``.

The scratch seat's day cache already holds that version, so the row says ``crates.io (cached)`` and neither ``behind`` nor ``ahead of``.
The path stands in for the binary.
The scratch ``PATH`` holds only this ``ljos``, so the sample does not show the other seat binaries.

.. code:: text

   $ ljos --version
   ljos 0.41.6
   $ ljos doctor --all
   ok  ljos    /path/to/ljos  0.41.6  crates.io (cached) 0.41.6

Exit 1 when the tracker, the deed store, or the pack does not answer. The
tracker row names how many commits origin lacks, and fails when that count
sits through the push wait. It also fails when another remote of the
tracker has a different head of the branch, as of the last fetch: two
seats pushing to two remotes each read only their own writes. A sitting's own tracker push goes to
every remote that carries the branch. A missing
claim graph is reported and is not a failure: the first claim creates it.
A seat nobody named is a derived seat, and a derived seat is a seat. The ``seat source`` row says where the name came from.
A damaged note queue is a ``no`` row and fails: it holds lessons the pack has not taken.
An empty or missing log of either is whole.