WP_REDIS_MAXTTL

  • Resolved berrywhy

    (@berrywhy)


    4 years, 3 months ago

    Hello everyone, I set up Redis and made the following configuration in addition to putting a password for Redis:

    supervised systemd
    maxmemory 128M
    maxmemory-policy allkeys-lfu

    I’ve been also seeing discussions regarding maximum TTL. My website gets daily 1-2k visitor and is on an ubuntu server. Should I configure a max TLL, what is the benefit of it? How can I figure out the optimum value?

Viewing 7 replies - 1 through 7 (of 7 total)
  • Plugin Author Till Krüss

    (@tillkruess)

    If you have enough RAM on your Redis machine then no.

    If you’re limited, set a MaxTTL of a week or so to get started and watch the memory of Redis.

    Thread Starter berrywhy

    (@berrywhy)

    How can I watch the memory of Redis and understand if it is limited? Is there any article you point out to me or could you explain please.

    And why RAM happens to be high or low, is it about site traffic?

    Plugin Author Till Krüss

    (@tillkruess)

    Your hosting provider might offer Redis metrics already.

    Regarding expiration: https://redis.io/commands/expire

    Thread Starter berrywhy

    (@berrywhy)

    It is unmanaged hosting.

    Thread Starter berrywhy

    (@berrywhy)

    I’ve installed it 4 days ago and these are current stats. What do you think?

    # Memory
    used_memory:20544544
    used_memory_human:19.59M
    used_memory_rss:20152320
    used_memory_rss_human:19.22M
    used_memory_peak:21504608
    used_memory_peak_human:20.51M
    used_memory_peak_perc:95.54%
    used_memory_overhead:1827918
    used_memory_startup:797256
    used_memory_dataset:18716626
    used_memory_dataset_perc:94.78%
    allocator_allocated:20890352
    allocator_active:22257664
    allocator_resident:25649152
    total_system_memory:1029038080
    total_system_memory_human:981.37M
    used_memory_lua:41984
    used_memory_lua_human:41.00K
    used_memory_scripts:0
    used_memory_scripts_human:0B
    number_of_cached_scripts:0
    maxmemory:0
    maxmemory_human:0B
    maxmemory_policy:noeviction
    allocator_frag_ratio:1.07
    allocator_frag_bytes:1367312
    allocator_rss_ratio:1.15
    allocator_rss_bytes:3391488
    rss_overhead_ratio:0.79
    rss_overhead_bytes:-5496832
    mem_fragmentation_ratio:0.98
    mem_fragmentation_bytes:-329328
    mem_not_counted_for_evict:0
    mem_replication_backlog:0
    mem_clients_slaves:0
    mem_clients_normal:49694
    mem_aof_buffer:0
    mem_allocator:jemalloc-5.2.1
    active_defrag_running:0
    lazyfree_pending_objects:0

    Plugin Author Till Krüss

    (@tillkruess)

    Sorry, this is the support forum for Redis Object Cache.

    If you need assistance with your Redis Server, I’d suggest stackoverflow.com

    Thread Starter berrywhy

    (@berrywhy)

    Thanks anyway.

Viewing 7 replies - 1 through 7 (of 7 total)
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