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authorEric Wong <e@80x24.org>2018-12-16 11:38:59 +0000
committerEric Wong <e@80x24.org>2018-12-19 02:47:00 +0000
commitd0ce6b9b9d055b62997b4fe6caee8799e3c19cc5 (patch)
tree1dff51343f091b2ffe3afebdd86cd26543d6edbd
parented3a3187b6aaca458b2abadcdb7d0f48f9c5dfb5 (diff)
Nowadays, I mainly rely on systemd (and not USR2) for
zero-downtime upgrades.  Also, CoW-friendliness is standard
in mainline Ruby since 2.0.

There also needs to be a disclaimer to point out the unfortunate
side-effect of robustness for hosting buggy apps.
-rw-r--r--README11
1 files changed, 9 insertions, 2 deletions
diff --git a/README b/README
index 5e5ccf7..89467fc 100644
--- a/README
+++ b/README
@@ -37,12 +37,15 @@ both the the request and response in between unicorn and slow clients.
   You can upgrade unicorn, your entire application, libraries
   and even your Ruby interpreter without dropping clients.
 
+* transparent upgrades using systemd socket activation is
+  supported since unicorn 5.0
+
 * before_fork and after_fork hooks in case your application
   has special needs when dealing with forked processes.  These
   should not be needed when the "preload_app" directive is
   false (the default).
 
-* Can be used with copy-on-write-friendly memory management
+* Can be used with copy-on-write-friendly GC in Ruby 2.0+
   to save memory (by setting "preload_app" to true).
 
 * Able to listen on multiple interfaces including UNIX sockets,
@@ -55,7 +58,7 @@ both the the request and response in between unicorn and slow clients.
 
 == License
 
-unicorn is copyright 2009-2016 by all contributors (see logs in git).
+unicorn is copyright 2009-2018 by all contributors (see logs in git).
 It is based on Mongrel 1.1.5.
 Mongrel is copyright 2007 Zed A. Shaw and contributors.
 
@@ -122,6 +125,10 @@ unicorn is designed to only serve fast clients either on the local host
 or a fast LAN.  See the PHILOSOPHY and DESIGN documents for more details
 regarding this.
 
+Due to its ability to tolerate crashes and isolate clients, unicorn
+is unfortunately known to prolong the existence of bugs in applications
+and libraries which run on top of it.
+
 == Contact
 
 All feedback (bug reports, user/development dicussion, patches, pull