pool overflow drain

Recycle constant Pool behavior listNote that VM args is configured for the parameters of the configuration VM, as shown in:Operation Result:Exception in thread "main" Java.lang.OutOfMemoryError:PermGen space at Java.lang.String.intern (Native Method) At the JVM. Runtimeconstantpooloom.main (RUNTIMECONSTANTPOOLOOM.JAVA:16)As you can see from the running results, the run-time pool

The simplest way to add content to a running constant pool is to use the String.intern () Native method. The function of this method is that if the pool already contains a string equal to this string object, a String object representing the string in the pool is returned, otherwise the string contained in this string object is added to the constant

To add content to the runtime pool, use the string. Intern () Native method. The function of this method is: if the pool already contains a string equal to this string object, a string object representing this string in the pool is returned; otherwise, add the string contained in this string object to the constant pool

The online varnish has been running steadily before, and this time the website suddenly responds particularly slowly. View the log as followsThe system information is as follows:The memory usage is very low but the load is particularly high, because the memory mapping limit is the reason why you are looking for related documents.You can pass statisticsCat/proc/pid/maps | Wc-lView the number of mappings nowThe default system mapping isCat/proc/sys/vm/max_map_countCan be processed by height/etc/sy