红帽全球峰会17.2. 配置缓冲器缓存
缓冲区缓存用于缓存静态资源。JBoss EAP 支持根据部署配置和引用多个缓存，允许不同的部署使用不同的缓存大小。缓冲区在区域中分配，是固定大小。将缓冲区大小乘以每个区域的缓冲区数量，再乘以区域的最大数量，便可计算出所用的空间总量。缓冲区缓存的默认大小为 10MB。
JBoss EAP 默认提供一个缓存：
默认 Undertow 子系统配置
<subsystem xmlns="urn:jboss:domain:undertow:10.0" default-server="default-server" default-virtual-host="default-host" default-servlet-container="default" default-security-domain="other">
<buffer-cache name="default"/>
...
</subsystem>
<subsystem xmlns="urn:jboss:domain:undertow:10.0" default-server="default-server" default-virtual-host="default-host" default-servlet-container="default" default-security-domain="other">
<buffer-cache name="default"/>
...
</subsystem>更新现有缓冲区缓存
更新现有缓冲缓存：
/subsystem=undertow/buffer-cache=default/:write-attribute(name=buffer-size,value=2048)
/subsystem=undertow/buffer-cache=default/:write-attribute(name=buffer-size,value=2048)reload
reload创建新缓冲缓存
创建新缓冲缓存：
/subsystem=undertow/buffer-cache=new-buffer:add
/subsystem=undertow/buffer-cache=new-buffer:add删除缓冲器缓存
删除缓冲缓存：
/subsystem=undertow/buffer-cache=new-buffer:remove
/subsystem=undertow/buffer-cache=new-buffer:removereload
reload有关可用于配置缓冲区缓存的属性的完整列表，请参阅 Undertow Subsystem Attributes 部分。
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