Weblogic管理控制台方式太慢了 [英] Weblogic administration console way too slow
问题描述
我安装了weblogic 10.3.3,配置了默认配置的简单域。启动weblogic后,我无法通过管理控制台使用它,因为它启动太慢(约10分钟)。似乎管理控制台应用程序部署不正确。即使我在AdminConsole部署选项中启用临时模式,它也无济于事。有没有人有解决这个问题的方法?这真让我烦恼。
I've installed weblogic 10.3.3, configured simple domain with default configuration. And after starting weblogic I cannot use it via admin console because it is starting too slow (~10 mins). It seems that admin console application is being deployed incorrectly. Even when I enable 'staging' mode in AdminConsole deployment options, it does not help. Does anybody have a solution for this problem? It really bugs me out.
配置属性:
服务器: Dell PowerEdge r410服务器(六核Intel®Xeon®x64CPU,8GB RAM)
Server: Dell PowerEdge r410 server (Six-core Intel® Xeon® x64 CPU, 8GB RAM)
OS: Ubuntu Maverick 10.10 x86_64
OS: Ubuntu Maverick 10.10 x86_64
Weblogic: 10.3.3 x64(用于安装的wls1033_generic.jar文件)
Weblogic: 10.3.3 x64 (used wls1033_generic.jar file for installation)
Java: 1.6.0_17_i586(尝试使用不同的jdk包括x64,但它也不起作用)
Java: 1.6.0_17_i586 (tried with different jdk's including x64, but it does not work either)
推荐答案
原来,weblogic在启动时使用随机数生成器。由于java中的错误,它从 / dev / random
中读取随机位。 / dev / random
几乎没有问题,除非它非常慢。生成一个数字有时需要10分钟或更长时间。存在简单的解决方案 - 使用 / dev / urandom
代替。它不如 / dev / random
那么好,但至少它是即时的。
Java以某种方式将 / dev / urandom
文件映射到 / dev / random
。这就是 $ JAVA_HOME / jre / lib / security / java.security
中的默认设置无用的原因,它们没有任何意义。
Turns out weblogic uses random number generator during startup. Because of the bug in java it reads random bits from /dev/random
. There are almost no problems with /dev/random
except that it is extremely slow. It takes sometimes 10 minutes or more to generate one number. Simple solution exists – using /dev/urandom
instead. It is not that good as /dev/random
, but at least it is instant.
Java somehow maps /dev/urandom
file to /dev/random
. That’s why default settings in $JAVA_HOME/jre/lib/security/java.security
are useless, they just do not make any sense.
问题修复非常简单 - 添加字符串导出JAVA_OPTIONS = - Djava.security.egd = file:/ dev /./ urandom
到 /etc/bash.bashrc
文件。使用 / dev /./ urandom
而不是简单的 / dev / urandom
是另一个黑客攻击。否则JVM无法理解选项值。
Problem fix is very simple – adding string export JAVA_OPTIONS="-Djava.security.egd=file:/dev/./urandom"
to the /etc/bash.bashrc
file. Usage of /dev/./urandom
instead of simple /dev/urandom
is another hack. JVM does not understand the option value otherwise.
如果您尝试在基于UNIX的操作系统下设置weblogic,请注意此问题。
Be aware of this problem if you try to setup weblogic under UNIX-based OS.
这篇关于Weblogic管理控制台方式太慢了的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!