[MINOR] global: add "tune.chksize" to change the default check buffer size
HTTP content-based health checks will be involved in searching text in pages.
Some pages may not fit in the default buffer (16kB) and sometimes it might be
desired to have larger buffers in order to find patterns. Running checks on
smaller URIs is always preferred of course.
(cherry picked from commit 043f44aeb835f3d0b57626c4276581a73600b6b1)
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 9a7c0e3..04cd5c9 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -454,6 +454,7 @@
- nosplice
- spread-checks
- tune.bufsize
+ - tune.chksize
- tune.maxaccept
- tune.maxpollevents
- tune.maxrewrite
@@ -672,6 +673,13 @@
possibly causing the system to run out of memory. At least the global maxconn
parameter should be decreased by the same factor as this one is increased.
+tune.chksize <number>
+ Sets the check buffer size to this size (in bytes). Higher values may help
+ find string or regex patterns in very large pages, though doing so may imply
+ more memory and CPU usage. The default value is 16384 and can be changed at
+ build time. It is not recommended to change this value, but to use better
+ checks whenever possible.
+
tune.maxaccept <number>
Sets the maximum number of consecutive accepts that a process may perform on
a single wake up. High values give higher priority to high connection rates,