每次写入时ehcache刷新磁盘

Question

Operation of a Cache where overflowToDisk is false and diskPersistent is true

In this configuration case, the disk will be written on flush or shutdown.
The next time the cache is started, the disk store will initialise but will not permit overflow from the
MemoryStore. In all other respects it acts like a normal disk store.

    <diskStore path="/mnt/ehcache/" />

    <cache 
    name="feedLocalCache" 
    maxEntriesLocalHeap="2000000"
    eternal="false"
    timeToLiveSeconds="1800"
    timeToIdleSeconds="0"         
    diskPersistent="true"
    overflowToDisk="false"
    memoryStoreEvictionPolicy="LFU" >
    <bootstrapCacheLoaderFactory class="net.sf.ehcache.store.DiskStoreBootstrapCacheLoaderFactory" properties="bootstrapAsynchronously=true"/>

Answer 1

将其归咎于文档的过时。

从EHCache2.6开始，最低层（也称为Authority-disk）总是包含所有映射。这是为了提高潜伏期的可预测性。

所以你看到的是预期的行为。请注意，磁盘写入是异步的，因此不会影响执行put的线程--除非您写得太多以至于写队列达到其最大大小。