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Signed-off-by: Andrew DeMaria <lostonamountain@gmail.com>
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Andrew DeMaria
2017-07-13 21:34:19 -06:00
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airsonic-main/src/main/resources/ehcache.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!--
CacheManager Configuration
==========================
An ehcache.xml corresponds to a single CacheManager.
See instructions below or the ehcache schema (ehcache.xsd) on how to configure.
System property tokens can be specified in this file which are replaced when the configuration
is loaded. For example multicastGroupPort=${multicastGroupPort} can be replaced with the
System property either from an environment variable or a system property specified with a
command line switch such as -DmulticastGroupPort=4446. Another example, useful for Terracotta
server based deployments is <terracottaConfig url="${serverAndPort}"/ and specify a command line
switch of -Dserver36:9510
The attributes of <ehcache> are:
* name - an optional name for the CacheManager. The name is optional and primarily used
for documentation or to distinguish Terracotta clustered cache state. With Terracotta
clustered caches, a combination of CacheManager name and cache name uniquely identify a
particular cache store in the Terracotta clustered memory.
* updateCheck - an optional boolean flag specifying whether this CacheManager should check
for new versions of Ehcache over the Internet. If not specified, updateCheck="true".
* dynamicConfig - an optional setting that can be used to disable dynamic configuration of caches
associated with this CacheManager. By default this is set to true - i.e. dynamic configuration
is enabled. Dynamically configurable caches can have their TTI, TTL and maximum disk and
in-memory capacity changed at runtime through the cache's configuration object.
* monitoring - an optional setting that determines whether the CacheManager should
automatically register the SampledCacheMBean with the system MBean server.
Currently, this monitoring is only useful when using Terracotta clustering and using the
Terracotta Developer Console. With the "autodetect" value, the presence of Terracotta clustering
will be detected and monitoring, via the Developer Console, will be enabled. Other allowed values
are "on" and "off". The default is "autodetect". This setting does not perform any function when
used with JMX monitors.
-->
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ehcache.sourceforge.net/ehcache.xsd"
updateCheck="false"
monitoring="off"
dynamicConfig="true">
<!--
DiskStore configuration
=======================
The diskStore element is optional. To turn off disk store path creation, comment out the diskStore
element below.
Configure it if you have overflowToDisk or diskPersistent enabled for any cache.
If it is not configured, and a cache is created which requires a disk store, a warning will be
issued and java.io.tmpdir will automatically be used.
diskStore has only one attribute - "path". It is the path to the directory where
.data and .index files will be created.
If the path is one of the following Java System Property it is replaced by its value in the
running VM. For backward compatibility these should be specified without being enclosed in the ${token}
replacement syntax.
The following properties are translated:
* user.home - User's home directory
* user.dir - User's current working directory
* java.io.tmpdir - Default temp file path
* ehcache.disk.store.dir - A system property you would normally specify on the command line
e.g. java -Dehcache.disk.store.dir=/u01/myapp/diskdir ...
Subdirectories can be specified below the property e.g. java.io.tmpdir/one
-->
<!-- NOTE: The path is overridden in org.libresonic.player.cache.CacheFactory -->
<diskStore path="java.io.tmpdir"/>
<!-- Uncomment this to enable cache monitoring. -->
<!--<cacheManagerPeerListenerFactory-->
<!--class="org.terracotta.ehcachedx.monitor.probe.ProbePeerListenerFactory"-->
<!--properties="monitorAddress=localhost, monitorPort=9889, memoryMeasurement=true" />-->
<!---->
<!--
Cache configuration
===================
The following attributes are required.
name:
Sets the name of the cache. This is used to identify the cache. It must be unique.
maxElementsInMemory:
Sets the maximum number of objects that will be created in memory. 0 = no limit.
In practice no limit means Integer.MAX_SIZE (2147483647) unless the cache is distributed
with a Terracotta server in which case it is limited by resources.
maxElementsOnDisk:
Sets the maximum number of objects that will be maintained in the DiskStore
The default value is zero, meaning unlimited.
eternal:
Sets whether elements are eternal. If eternal, timeouts are ignored and the
element is never expired.
overflowToDisk:
Sets whether elements can overflow to disk when the memory store
has reached the maxInMemory limit.
The following attributes and elements are optional.
overflowToOffHeap:
(boolean) This feature is available only in enterprise versions of Ehcache.
When set to true, enables the cache to utilize off-heap memory
storage to improve performance. Off-heap memory is not subject to Java
GC. The default value is false.
maxMemoryOffHeap:
(string) This feature is available only in enterprise versions of Ehcache.
Sets the amount of off-heap memory available to the cache.
This attribute's values are given as <number>k|K|m|M|g|G|t|T for
kilobytes (k|K), megabytes (m|M), gigabytes (g|G), or terabytes
(t|T). For example, maxMemoryOffHeap="2g" allots 2 gigabytes to
off-heap memory.
This setting is in effect only if overflowToOffHeap is true.
Note that it is recommended to set maxElementsInMemory to at least 100 elements
when using an off-heap store, otherwise performance will be seriously degraded,
and a warning will be logged.
The minimum amount that can be allocated is 128MB. There is no maximum.
timeToIdleSeconds:
Sets the time to idle for an element before it expires.
i.e. The maximum amount of time between accesses before an element expires
Is only used if the element is not eternal.
Optional attribute. A value of 0 means that an Element can idle for infinity.
The default value is 0.
timeToLiveSeconds:
Sets the time to live for an element before it expires.
i.e. The maximum time between creation time and when an element expires.
Is only used if the element is not eternal.
Optional attribute. A value of 0 means that and Element can live for infinity.
The default value is 0.
diskPersistent:
Whether the disk store persists between restarts of the Virtual Machine.
The default value is false.
diskExpiryThreadIntervalSeconds:
The number of seconds between runs of the disk expiry thread. The default value
is 120 seconds.
diskSpoolBufferSizeMB:
This is the size to allocate the DiskStore for a spool buffer. Writes are made
to this area and then asynchronously written to disk. The default size is 30MB.
Each spool buffer is used only by its cache. If you get OutOfMemory errors consider
lowering this value. To improve DiskStore performance consider increasing it. Trace level
logging in the DiskStore will show if put back ups are occurring.
clearOnFlush:
whether the MemoryStore should be cleared when flush() is called on the cache.
By default, this is true i.e. the MemoryStore is cleared.
statistics:
Whether to collect statistics. Note that this should be turned on if you are using
the Ehcache Monitor. By default statistics is turned off to favour raw performance.
To enable set statistics="true"
memoryStoreEvictionPolicy:
Policy would be enforced upon reaching the maxElementsInMemory limit. Default
policy is Least Recently Used (specified as LRU). Other policies available -
First In First Out (specified as FIFO) and Less Frequently Used
(specified as LFU)
copyOnRead:
Whether an Element is copied when being read from a cache.
By default this is false.
copyOnWrite:
Whether an Element is copied when being added to the cache.
By default this is false.
-->
<!--
Default Cache configuration. These settings will be applied to caches
created programmatically using CacheManager.add(String cacheName).
This element is optional, and using CacheManager.add(String cacheName) when
its not present will throw CacheException
The defaultCache has an implicit name "default" which is a reserved cache name.
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
diskSpoolBufferSizeMB="10"
maxElementsOnDisk="10000000"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU"
statistics="true"
/>
-->
<cache name="mediaFileMemoryCache"
maxElementsInMemory="1000"
eternal="false"
timeToIdleSeconds="0"
timeToLiveSeconds="10"
overflowToDisk="false"
statistics="true"/>
<cache name="userCache"
maxElementsInMemory="1000"
eternal="false"
timeToIdleSeconds="172800"
timeToLiveSeconds="172800"
overflowToDisk="false"
diskSpoolBufferSizeMB="1"
statistics="true"/>
<!--
Sample caches. Following are some example caches. Remove these before use.
-->
<!--
Sample cache named sampleCache1
This cache contains a maximum in memory of 10000 elements, and will expire
an element if it is idle for more than 5 minutes and lives for more than
10 minutes.
If there are more than 10000 elements it will overflow to the
disk cache, which in this configuration will go to wherever java.io.tmp is
defined on your system. On a standard Linux system this will be /tmp"
<cache name="sampleCache1"
maxElementsInMemory="10000"
maxElementsOnDisk="1000"
eternal="false"
overflowToDisk="true"
diskSpoolBufferSizeMB="20"
timeToIdleSeconds="300"
timeToLiveSeconds="600"
memoryStoreEvictionPolicy="LFU"
transactionalMode="off"
/>
-->
<!--
Sample cache named sampleCache2
This cache has a maximum of 1000 elements in memory. There is no overflow to disk, so 1000
is also the maximum cache size. Note that when a cache is eternal, timeToLive and
timeToIdle are not used and do not need to be specified.
<cache name="sampleCache2"
maxElementsInMemory="1000"
eternal="true"
overflowToDisk="false"
memoryStoreEvictionPolicy="FIFO"
/>
-->
<!--
Sample cache named sampleCache3. This cache overflows to disk. The disk store is
persistent between cache and VM restarts. The disk expiry thread interval is set to 10
minutes, overriding the default of 2 minutes.
<cache name="sampleCache3"
maxElementsInMemory="500"
eternal="false"
overflowToDisk="true"
timeToIdleSeconds="300"
timeToLiveSeconds="600"
diskPersistent="true"
diskExpiryThreadIntervalSeconds="1"
memoryStoreEvictionPolicy="LFU"
/>
-->
</ehcache>