我在EC2上的tomcat实例中运行了一个Web应用程序,我不能在我的生活中获得粘性会话来处理负载均衡器。我已经按照http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-sticky-sessions.html中的所有步骤,尝试使用基于应用程序(使用JSESSIONID cookie)和基于时间(使用86400秒)的方法,但无论哪种方式,它都不起作用, 。同一个用户不断在所有不同的节点上反弹..每次他们点击网页上的新链接时,它都会将它们反弹回主屏幕再次登录。
我不知道它为什么不起作用。我也不太了解这些东西(哎呀,直到2个小时前我甚至不知道'粘性会话'是什么意思 - 不,我不能让其他人去做)所以我'我不确定从哪里开始调试它。
编辑:看看我的cookies ..似乎每次加载网站时,AWSELB cookie都会被删除并重写,而不是像它应该的那样持续存在。
编辑2:我的负载均衡器的XML配置:
{
"LoadBalancerDescriptions": [
{
"Subnets": [
"subnet-5c83aa39",
"subnet-6a778830",
"subnet-c41cdde8"
],
"CanonicalHostedZoneNameID": "Z35SXDOTRQ7X7K",
"CanonicalHostedZoneName": "<ELB_NAME>-<redacted>.us-east-1.elb.amazonaws.com",
"ListenerDescriptions": [
{
"Listener": {
"InstancePort": 5432,
"LoadBalancerPort": 5432,
"Protocol": "TCP",
"InstanceProtocol": "TCP"
},
"PolicyNames": []
},
{
"Listener": {
"InstancePort": 8888,
"LoadBalancerPort": 8888,
"Protocol": "HTTP",
"InstanceProtocol": "HTTP"
},
"PolicyNames": [
"AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500995555135"
]
}
],
"HealthCheck": {
"HealthyThreshold": 2,
"Interval": 10,
"Target": "HTTP:44554/",
"Timeout": 8,
"UnhealthyThreshold": 4
},
"VPCId": "vpc-721bec0b",
"BackendServerDescriptions": [],
"Instances": [
{
"InstanceId": "i-0ca9c244ed930d58f"
},
{
"InstanceId": "i-0cf47dc916f3f3443"
},
{
"InstanceId": "i-09ce2f24abc50259f"
}
],
"DNSName": "<ELB_NAME>-<redacted>.us-east-1.elb.amazonaws.com",
"SecurityGroups": [
"sg-f5ff638b"
],
"Policies": {
"LBCookieStickinessPolicies": [
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500564994754",
"CookieExpirationPeriod": 86400
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500565103581",
"CookieExpirationPeriod": 0
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500566463445",
"CookieExpirationPeriod": 28800
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500566440580",
"CookieExpirationPeriod": 0
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500476922828",
"CookieExpirationPeriod": 86400
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500481383343",
"CookieExpirationPeriod": 86400
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500479370743",
"CookieExpirationPeriod": 86400
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500475843862",
"CookieExpirationPeriod": 86400
},
{
"PolicyName": "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500995555135",
"CookieExpirationPeriod": 86400
}
],
"AppCookieStickinessPolicies": [
{
"PolicyName": "AWSConsole-AppCookieStickinessPolicy-<ELB_NAME>-1500477157435",
"CookieName": "JSESSIONID"
},
{
"PolicyName": "AWSConsole-AppCookieStickinessPolicy-<ELB_NAME>-1500472642494",
"CookieName": "JSESSIONID"
},
{
"PolicyName": "AWSConsole-AppCookieStickinessPolicy-<ELB_NAME>-1500473344752",
"CookieName": "JSESSIONID"
},
{
"PolicyName": "AWSConsole-AppCookieStickinessPolicy-<ELB_NAME>-1500473227851",
"CookieName": "JSESSIONID"
}
],
"OtherPolicies": []
},
"LoadBalancerName": "<ELB_NAME>",
"CreatedTime": "2017-07-18T15:32:33.890Z",
"AvailabilityZones": [
"us-east-1a",
"us-east-1b",
"us-east-1c"
],
"Scheme": "internet-facing",
"SourceSecurityGroup": {
"OwnerAlias": "558554867759",
"GroupName": "<redacted>"
}
}
]
}
编辑3:任何人?请我绝望,我需要这个工作......
答案 0 :(得分:0)
首先,这个粘性的东西是如何工作的! ELB只是第一次添加一个cookie AWSELB(或者可能是其他名称;你可以只查找所有的cookie,看看哪个不是你的)。此cookie还包含此请求应该服务的信息。
现在,来自同一浏览器的所有请求都将具有该cookie,而ELB知道转发的位置。这里没有什么是行不通的。
让我们来做:
你能给我发送你正在尝试的网站/ webapp吗?如果可以公开访问。因为即使我可以调试它。
确保允许使用Cookie;虽然看起来像你的问题,这不是一个问题。
您在编辑粘性上设置的有效期是多少!确保在ELB上 - &gt;点击Edit Stickiness - &gt;选择单选按钮&#34;启用负载均衡器生成的cookie粘性&#34;并且最重要的是将有效期留空。
如果您正在使用HTTPS,请对HTTPS重复步骤3.
让我知道它是否有效;我在这里只在下一个小时。
不确定为什么你的XML显示了很多LBCookieStickinessPolicies !!
答案 1 :(得分:0)
您使用不同的配置创建了许多不同的策略,但只有一个与侦听器关联,而且一个是基于时间的策略。
"LoadBalancerDescriptions": [
{
"Subnets": [
"subnet-5c83aa39",
"subnet-6a778830",
"subnet-c41cdde8"
],
"CanonicalHostedZoneNameID": "Z35SXDOTRQ7X7K",
"CanonicalHostedZoneName": "<ELB_NAME>-<redacted>.us-east-1.elb.amazonaws.com",
"ListenerDescriptions": [
{
"Listener": {
"InstancePort": 5432,
"LoadBalancerPort": 5432,
"Protocol": "TCP",
"InstanceProtocol": "TCP"
},
"PolicyNames": []
},
{
"Listener": {
"InstancePort": 8888,
"LoadBalancerPort": 8888,
"Protocol": "HTTP",
"InstanceProtocol": "HTTP"
},
"PolicyNames": [
here ----> "AWSConsole-LBCookieStickinessPolicy-<ELB_NAME>-1500995555135"
]
}
],
该文档指出了如何将策略与侦听器关联起来:http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-sticky-sessions.html#enable-sticky-sessions-duration
尝试仅将一个使用JSESSIONID的AppCookieStickinessPolicies与监听器相关联