我正在使用 putty 连接虚拟机。我在那里安装了java8和tomcat8。尝试使用 tomcat 作为远程服务器运行应用程序时出现 404 错误。
所以我重新启动了tomcat。停止服务器时我收到此错误。谁能知道这个问题的解决方案吗?
无法保留共享内存当 JVM 无法从共享内存为 Java 堆分配大页时,可能会出现此消息。这可能仅发生在-XX:+UseLargePages
is on.
errno=12意思是“内存不足”。
解释来自热点来源 http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/file/aa4ffb1f30c9/src/os/linux/vm/os_linux.cpp#l3582:
// Possible reasons for shmget failure:
// 1. shmmax is too small for Java heap.
// > check shmmax value: cat /proc/sys/kernel/shmmax
// > increase shmmax value: echo "0xffffffff" > /proc/sys/kernel/shmmax
// 2. not enough large page memory.
// > check available large pages: cat /proc/meminfo
// > increase amount of large pages:
// echo new_value > /proc/sys/vm/nr_hugepages
// Note 1: different Linux may use different name for this property,
// e.g. on Redhat AS-3 it is "hugetlb_pool".
// Note 2: it's possible there's enough physical memory available but
// they are so fragmented after a long run that they can't
// coalesce into large pages. Try to reserve large pages when
// the system is still "fresh".
按照上面的说明操作或直接删除-XX:+UseLargePages
JVM 选项。
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