使用gcore生成的Java核心文件有用吗？

我们有一个JAVA应用程序通过消耗一些（未知的）资源来阻止其他组件创建新线程，从而使我们的redhat服务器（30核/ 512Go ram）崩溃了，我们目前正在通过杀死正在散布线程的进程来解决此问题每次问题出现时（大约每15天一次），我们尝试在/etc/security/limits.conf中设置巨大的值，但是在达到该限制之前我们已经找到问题的解决方法。

我上次使用ps -efL |计算了线程数| wc -l，知道当时的CPU / RAM消耗很低，对于我们的野兽来说，有10000个线程很多吗？我用gstack尝试找出它卡在哪里，但是由于它是一个JAVA程序idk，如果输出有意义？但是我可以在那里找到一个模式：9000个线程中的大多数看起来像这样：

Thread 9049 (Thread 0x7f43d5087700 (LWP 123925)):
#0  0x00007f43d791e705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f43d6a94f33 in os::PlatformEvent::park() () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#2  0x00007f43d6a58e67 in Monitor::IWait(Thread*, long) () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#3  0x00007f43d6a59786 in Monitor::wait(bool, long, bool) () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#4  0x00007f43d6c48e1b in GangWorker::loop() () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#5  0x00007f43d6a9bd48 in java_start(Thread*) () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#6  0x00007f43d791adf5 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f43d722f1ad in clone () from /lib64/libc.so.6
Thread 9048 (Thread 0x7f43d4f86700 (LWP 123926)):
#0  0x00007f43d791e705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f43d6a94f33 in os::PlatformEvent::park() () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#2  0x00007f43d6a58e67 in Monitor::IWait(Thread*, long) () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#3  0x00007f43d6a59786 in Monitor::wait(bool, long, bool) () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#4  0x00007f43d6c48e1b in GangWorker::loop() () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#5  0x00007f43d6a9bd48 in java_start(Thread*) () from /opt/3pp/jdk1.8.0_25/jre/lib/amd64/server/libjvm.so
#6  0x00007f43d791adf5 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f43d722f1ad in clone () from /lib64/libc.so.6

同样在杀死进程之前，我使用了gcore -o /tmp/dump.txt，这是获取Java进程的核心文件的正确方法吗？