Re: Tomcat 8.5.3 with Apr Connector throws NullPointerException

2017-03-20 Thread linbo liao
MT+08:00 Mark Thomas : > On 20/03/17 03:15, linbo liao wrote: > > Hi, > > > > My tomcat throws NullPointerException sometimes. Here is environment: > > > > Linux VM: RedHat Enterprise Linux Server release 6.7 x86_64 > > Tomcat: 8.5.3 > > JVM: HotSpot 64-

Tomcat 8.5.3 with Apr Connector throws NullPointerException

2017-03-19 Thread linbo liao
Hi, My tomcat throws NullPointerException sometimes. Here is environment: Linux VM: RedHat Enterprise Linux Server release 6.7 x86_64 Tomcat: 8.5.3 JVM: HotSpot 64-Bit Server VM 1.8.0_65 APR: 1.5.2-1 Tomcat Native: 1.2.7 The exception show in catalina.log : 18-Mar-2017 03:36:01.135 WARNING [ht

Re: JMX currentThreadsBusy less than connections/requests when use APR connector

2017-03-11 Thread linbo liao
Hi Chris, Thank you for your help. I will monitor it via JMX. 2017-03-11 2:08 GMT+08:00 Christopher Schultz : > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Linbo, > > On 3/9/17 7:31 PM, linbo liao wrote: > > 1、The load-generating vm has 2 cores. > > W

Re: JMX currentThreadsBusy less than connections/requests when use APR connector

2017-03-09 Thread linbo liao
1、The load-generating vm has 2 cores. 2、Can I use currentThreadsBusy to monitor the performance of Tomcat using APR connector? 2017-03-10 0:42 GMT+08:00 Christopher Schultz : > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Linbo, > > On 3/8/17 8:13 PM, linbo liao wrot

Re: JMX currentThreadsBusy less than connections/requests when use APR connector

2017-03-08 Thread linbo liao
? 2017-03-08 22:45 GMT+08:00 Christopher Schultz : > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Linbo, > > On 3/7/17 10:14 PM, linbo liao wrote: > > I setup local environment to test Tomcat monitor. > > > > The Environment: > > > > Tomcat:

JMX currentThreadsBusy less than connections/requests when use APR connector

2017-03-07 Thread linbo liao
Hi, I setup local environment to test Tomcat monitor. The Environment: Tomcat: 8.5.5 VM: Ubuntu 14.04.1 LTS HTTP PORT: 8080 IP: 10.211.55.4 Tomcat use APR connector, I test the tomcat via ab command, find JMX currentThreadsBusy < 10 all of the time. ab -n 10 -c 100 10.211.55.4:8080/ > I t