有没有人遇到过在tomcat7中挂线程的问题？在工作时间，我们在生产服务器上收到数百万个HTTP请求。 Tomcat对于所有请求都表现得非常好，并且在指定的时间限制内响应。每周只有一次或两次某些线程暂停超过10秒，这会导致响应延迟。
环境详情
不确定问题是与Tomcat或Java有关还是与虚拟机有关。请注意，GC日志记录已启用，每分钟显示暂停时间不到一秒钟。我没有在gc日志中看到任何暂停，持续10秒。
应用程序日志
2015-12-01 14:28:41,696|lvl=INFO|cls=identity.service.IdentityService|thd=http-apr-8080-exec-6|mod=URS|opn=[modifyPostionAssignment]|ssoTicket=ESR - N/A|requestID=C6232437-0116-0401-1201-142827450001|deviceId=0.481455058954918820af268b0.6793986896475551|sessionId=JSESSIONID0.5594741341655929|tid=HG-INT-01-0GRZI7BhTreRniamQm0esA|msg=[maintainUserMasterData] START
2015-12-01 14:28:28,226|lvl=INFO|cls=identity.service.controller.IdentityServiceController|thd=http-apr-8080-exec-6|mod=URS|opn=[modifyPostionAssignment]|ssoTicket=ESR - N/A|requestID=C6232437-0116-0401-1201-142827450001|deviceId=0.481455058954918820af268b0.6793986896475551|sessionId=JSESSIONID0.5594741341655929|tid=HG-INT-01-0GRZI7BhTreRniamQm0esA|msg=[maintainUserMasterData] START
GC日志
2015-12-01T14:28:41.461+0000: 500601.110: Total time for which application threads were stopped: 0.2703630 seconds
2015-12-01T14:28:40.705+0000: 500600.354: Total time for which application threads were stopped: 0.2837290 seconds
2015-12-01T14:28:39.473+0000: 500599.122: Total time for which application threads were stopped: 0.0011780 seconds
2015-12-01T14:28:39.123+0000: 500598.771: Total time for which application threads were stopped: 0.0866600 seconds
2015-12-01T14:28:35.918+0000: 500595.566: Total time for which application threads were stopped: 0.0001030 seconds
2015-12-01T14:28:35.918+0000: 500595.566: Total time for which application threads were stopped: 0.0001520 seconds
2015-12-01T14:28:35.917+0000: 500595.566: Total time for which application threads were stopped: 0.0005330 seconds
2015-12-01T14:28:35.914+0000: 500595.562: Total time for which application threads were stopped: 0.0001030 seconds
2015-12-01T14:28:35.914+0000: 500595.562: Total time for which application threads were stopped: 0.0002980 seconds
2015-12-01T14:28:35.913+0000: 500595.562: Total time for which application threads were stopped: 0.0012430 seconds
2015-12-01T14:28:34.468+0000: 500594.117: Total time for which application threads were stopped: 0.0001340 seconds
2015-12-01T14:28:34.468+0000: 500594.117: Total time for which application threads were stopped: 0.0001210 seconds
2015-12-01T14:28:34.468+0000: 500594.116: Total time for which application threads were stopped: 0.0001500 seconds
2015-12-01T14:28:34.467+0000: 500594.116: Total time for which application threads were stopped: 0.0012510 seconds
2015-12-01T14:28:29.479+0000: 500589.127: Total time for which application threads were stopped: 0.0012900 seconds
2015-12-01T14:28:27.979+0000: 500587.628: Total time for which application threads were stopped: 0.0607270 seconds
2015-12-01T14:28:27.101+0000: 500586.750: Total time for which application threads were stopped: 0.0982840 seconds
Tomcat访问日志：
[01/Dec/2015:14:28:41 +0000] remotehost=192.168.62.2 x-forwarded-for=192.168.61.11 method=POST uri=/ursbusservice/maintainUserMasterData/ qs= status=200 bytes=41365 respTime=4766 method = POST status = 200
[01/Dec/2015:14:28:41 +0000] remotehost=192.168.62.2 x-forwarded-for=192.168.61.26 method=POST uri=/ursbusservice/maintainUserMasterData/ qs= status=200 bytes=4041 respTime=13580 method = POST status = 200
[01/Dec/2015:14:28:40 +0000] remotehost=192.168.62.2 x-forwarded-for=192.168.61.13 method=POST uri=/ursbusservice/maintainUserMasterData/ qs= status=200 bytes=14204 respTime=1159 method = POST status = 200
[01/Dec/2015:14:28:39 +0000] remotehost=192.168.62.2 x-forwarded-for=192.168.61.12 method=POST uri=/ursbusservice/maintainUserMasterData/ qs= status=200 bytes=59554 respTime=13990 method = POST status = 200
[01/Dec/2015:14:28:35 +0000] remotehost=192.168.62.2 x-forwarded-for=192.168.61.10 method=POST uri=/ursbusservice/maintainUserMasterData/ qs= status=200 bytes=37664 respTime=186 method = POST status = 200
[01/Dec/2015:14:28:33 +0000] remotehost=192.168.62.2 x-forwarded-for=192.168.61.12 method=POST uri=/ursbusservice/maintainUserMasterData/ qs= status=200 bytes=42983 respTime=426 method = POST status = 200
代码片段，IdentityServiceController.java：
@RequestMapping(value = RequestMappings.MAINTAINUSER_MASTER_DATA, method = RequestMethod.POST, consumes = IdentityServiceConstants.APPLICATION_JSON)
@ResponseBody
public UserMasterVO maintainUserMasterData(@RequestBody UserMasterVO userMasterVO)
{
ContextInfo contextInfo = userMasterVO.getContextInfo();
ServiceContext.set(contextInfo);
dLogger.info(IdentityServiceConstants.START, contextInfo, new Object[] { IdentityServiceConstants.Methods.MAINTAIN_USERMASTER_DATA});
if (userMasterVO.getUuid() != null && userMasterVO.getOperation() != null)
{
identityService.maintainUserMasterData(userMasterVO);
}
else
{
throw new IdentityServiceException();
}
return userMasterVO;
}
IdentityService.java：
public void maintainUserMasterData(UserMasterVO userMasterVO) {
ContextInfo contextInfo = userMasterVO.getContextInfo();
ServiceContext.set(contextInfo);
dLogger.info(IdentityServiceConstants.START, contextInfo, new Object[] {IdentityServiceConstants.Methods.MAINTAIN_USERMASTER_DATA});
//do some operations
dLogger.info(IdentityServiceConstants.END, contextInfo, new Object[] {IdentityServiceConstants.Methods.MAINTAIN_USERMASTER_DATA});
}
答案 0 :(得分：3)
如果它像你说的那样罕见那么它几乎可以是任何东西。
有些地方要看：