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Home/ Questions/Q 3931238
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Editorial Team
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Editorial Team
Asked: May 19, 20262026-05-19T23:19:58+00:00 2026-05-19T23:19:58+00:00

I am trying to understand what would be the need to go with a

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I am trying to understand what would be the need to go with a solution like memcached. It may seem like a silly question – but what does it bring to the table if all I need is to cache objects? Won’t a simple hashmap do ?

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  1. Editorial Team
    Editorial Team
    2026-05-19T23:19:59+00:00Added an answer on May 19, 2026 at 11:19 pm

    Quoting from the memcache web site, memcache is…

    Free & open source, high-performance,
    distributed memory object caching
    system, generic in nature, but
    intended for use in speeding up
    dynamic web applications by
    alleviating database load.

    Memcached is an in-memory key-value
    store for small chunks of arbitrary
    data (strings, objects) from results
    of database calls, API calls, or page
    rendering. Memcached is simple yet
    powerful. Its simple design promotes
    quick deployment, ease of development,
    and solves many problems facing large
    data caches. Its API is available for
    most popular languages.

    At heart it is a simple Key/Value
    store

    A key word here is distributed. In general, quoting from the memcache site again,

    Memcached servers are generally
    unaware of each other. There is no
    crosstalk, no syncronization, no
    broadcasting. The lack of
    interconnections means adding more
    servers will usually add more capacity
    as you expect. There might be
    exceptions to this rule, but they are
    exceptions and carefully regarded.

    I would highly recommend reading the detailed description of memcache.

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