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author | Eric Wong <e@80x24.org> | 2015-03-12 22:09:38 +0000 |
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committer | Eric Wong <e@80x24.org> | 2015-04-22 18:57:39 +0000 |
commit | 548e1e67d314f6ebd17df37ece0ee20632462f6f (patch) | |
tree | 74b3248124a6a32e0439b33e0e6cf782b6c42414 /Documentation/unicorn.1.txt | |
parent | 1c4843708b0fddbb9d196d9419b220f82707ed61 (diff) | |
download | unicorn-548e1e67d314f6ebd17df37ece0ee20632462f6f.tar.gz |
Due to the prevalence of socket activation in modern init systems, we shall document UNICORN_FD (previously an implementation detail) in the manpage.
Diffstat (limited to 'Documentation/unicorn.1.txt')
-rw-r--r-- | Documentation/unicorn.1.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/unicorn.1.txt b/Documentation/unicorn.1.txt index 376a6c6..b03962e 100644 --- a/Documentation/unicorn.1.txt +++ b/Documentation/unicorn.1.txt @@ -163,6 +163,13 @@ set in the old master process are inherited by the new master process. Unicorn only uses (and will overwrite) the UNICORN_FD environment variable internally when doing transparent upgrades. +UNICORN_FD is a comma-delimited list of one or more file descriptors +used to implement USR2 upgrades. Init systems may bind listen sockets +itself and spawn unicorn with UNICORN_FD set to the file descriptor +numbers of the listen socket(s). The unicorn CONFIG_FILE must still +have the inherited listen socket parameters defined as in a normal +startup, otherwise the socket will be closed. + # SEE ALSO * unicorn_rails(1) |