I get this in my php error log:
2014-02-09 04:19:27.444 [NOTICE] [66.249.78.16:55264-0#APVH_domain.com] [STDERR] PHP Warning: xcache_get(): XCache var cache was not initialized properly. Check php log for actual reason in /home/user/public_html/wp-content/plugins/w3-total-cache/lib/W3/Cache/Xcache.php on line 171
2014-02-09 04:19:27.444 [NOTICE] [66.249.78.16:55264-0#APVH_domain.com] [STDERR] PHP Warning: xcache_set(): XCache var cache was not initialized properly. Check php log for actual reason in /home/user/public_html/wp-content/plugins/w3-total-cache/lib/W3/Cache/Xcache.php on line 55
2014-02-09 04:19:27.450 [NOTICE] [66.249.78.16:55264-0#APVH_domain.com] [STDERR] PHP Warning: xcache_set(): XCache var cache was not initialized properly. Check php log for actual reason in /home/user/public_html/wp-content/plugins/w3-total-cache/lib/W3/Cache/Xcache.php on line 55
It looks like all the requests are from Google (IP).
I have many of these in my error log. my var_cache was 256M at the beginning, then I was thinking it's not enough, so I raised that to 512M, and it's the same thing. Any advice?
php.ini:
; Directory in which the loadable extensions (modules) reside.
;extension_dir = "/usr/local/lib/php/extensions/no-debug-non-zts-14411478"
extension="xcache.so"
xcache.admin.auth="On"
xcache.admin.enable_auth="on"
xcache.admin.pass="whatever (it's in md5)"
xcache.admin.user="whatever "
xcache.cacher="On"
xcache.coredump_directory=""
xcache.count="4"
xcache.coveragedump_directory="/tmp/pcov/"
xcache.coverager="Off"
xcache.gc_interval="300"
xcache.mmap_path="/dev/zero"
xcache.optimizer="off"
xcache.readonly_protection=Off
xcache.shm_scheme="mmap"
xcache.size="512M"
xcache.slots="16K"
xcache.stat="On"
xcache.test="Off"
xcache.ttl="0"
xcache.var_count="4"
xcache.var_gc_interval="300"
xcache.var_maxttl="0"
xcache.var_size= 256M
xcache.var_slots="8K"
xcache.var_ttl="0"
Thanks.