added a few more config files for increasing open file limits on server

install.sh

@@ -124,6 +124,14 @@ systemctl enable haveged
 # boot and continue running even if the user never logs in...
 loginctl enable-linger gliders
 
+# Increase open file limits. The 'fetchlogs' service connects to a bunch of
+# stuff in parallel and with everything else running on the server this could
+# push it over the default 4096 (or is it 1024?) open files per user limit,
+# causing programs to quit.
+# https://easyengine.io/tutorials/linux/increase-open-files-limit/
+cp security-limits.d-10-files.conf /etc/security/limits.d/10-files.conf
+cp sysctl.d-0-filelimits.conf /etc/sysctl.d/0-filelimits.conf
+
 # (optional) Compile HHVM -- this will take ages!
 # yum install cpp gcc-c++ cmake git psmisc {binutils,boost,jemalloc}-devel \
 # {ImageMagick,sqlite,tbb,bzip2,openldap,readline,elfutils-libelf,gmp,lz4,pcre}-devel \