Support » Plugins » [Plugin: W3 Total Cache] Memcached APC cache

  • I just installed W3TotalCache + APC + memcached on my server that is running mainly Vbulletin forum. Memcached works fine with WP but I have trouble with APC cache.

    APC appears to be stable but automatically restarts after a couple
    hours (each 2.14 hrs in fact) with a empty cache. I don’t know how to fix it. Maybe with a directive : but I am not sure.

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  • I’ve never heard of this issue with APC. What version are you using? Why have you installed memcached, do you have a multiple server configuration?

    W3 TotalCache/Memcached (homepage, WP2.8.6)
    APC (vbulletin forum + vbseo)

    System Configuration
    APC Version 3.1.3p1
    PHP Version 5.2.5
    Server Software Apache
    Shared Memory 1 Segment(s) with 30.0 MBytes
    (mmap memory, pthread mutex locking)

    Setting Details:
    apc.cache_by_default 1
    apc.canonicalize 1
    apc.coredump_unmap 0
    apc.enable_cli 0
    apc.enabled 1
    apc.file_md5 0
    apc.file_update_protection 2
    apc.gc_ttl 3600
    apc.include_once_override 0
    apc.lazy_classes 0
    apc.lazy_functions 0
    apc.max_file_size 1M
    apc.num_files_hint 1000
    apc.report_autofilter 0
    apc.rfc1867 0
    apc.rfc1867_freq 0
    apc.rfc1867_name APC_UPLOAD_PROGRESS
    apc.rfc1867_prefix upload_
    apc.rfc1867_ttl 3600
    apc.shm_segments 1
    apc.shm_size 30
    apc.stat 1
    apc.stat_ctime 0
    apc.ttl 0
    apc.use_request_time 1
    apc.user_entries_hint 4096
    apc.user_ttl 0
    apc.write_lock 1

    Ticket sent to PECL.


    I recommend using the latest stable version of APC and not the beta. I would also recommend upgrading to PHP 5.2.6 or 5.2.10 if possible, although I’m aware of no APC compatibilities with any version.

Viewing 3 replies - 1 through 3 (of 3 total)
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