tomcat启动太慢，耗时很长的问题 Creation of SecureRandom instance for ...
2017-01-19 18:29
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tomcat启动很长时间，tomcat输出日志：
INFO [localhost-startStop-1] org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [142,478] milliseconds.
最终解决问题的办法，修改java参数，得到解决：
vim $JAVA_HOME/jre/lib/security/java.security
修改内容：
#securerandom.source=file:/dev/random #修改前
securerandom.source=file:/dev/./urandom #修改后，注意"u"
INFO [localhost-startStop-1] org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [142,478] milliseconds.
最终解决问题的办法，修改java参数，得到解决：
vim $JAVA_HOME/jre/lib/security/java.security
修改内容：
#securerandom.source=file:/dev/random #修改前
securerandom.source=file:/dev/./urandom #修改后，注意"u"
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