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nginx常见内部错误

2016-07-26 17:14 1671 查看
错误日志：

错误信息错误说明
upstream prematurely closed connection(过早地关掉连接)请求uri的时候出现的异常，是由于upstream还未返回应答给用户时，

用户断掉连接造成的，对系统没有影响，可以忽略

recv() failed(104:Connection reset by peer)1).服务器的并发连接数超过了其承载量，服务器会将其中一部分连接Down掉；

2).客户端主动关闭连接，而服务器还正在给客户端发送数据；

3).浏览器端按了stop；

(111:Connection refused) while connection to upstream用户在连接时，若遇到后端upstream挂掉或者不通，会受到该错误
(111:Connection refused) while reading response header from upstream用户在连接成功后读取数据时，若遇到后端upsteam挂掉或者不通，会收到该错误
(111:Connection refused) while sending request to upstreamNginx和upstream连接成功后发送数据时，若遇到后端upstream挂掉或者不通,会收到该错误
(110:Connection time out) while connection to upstreamnginx连接后面的upstream时，超时
(110:Connection time out) while reading upstreamnginx读取来自upstream的响应时，超时
(110:Connection time out) while reading response header from upstreamnginx读取来自upstream的响应头时，超时
(104:Connection reset by peer) while connecting to upstreamupstream 发送了RST，将连接重置
upstream sent invalid header while reading response header from upstreamupstream发送的响应头无效
upstream sent to valid HTTP/1.0 header while reading response header from upstreamupstream发送的响应头无效
client intended to send to large body用于设置允许接收的客户端请求内容的最大值，默认值是1M，client发送的body超过了设置的值
reopening logs用户发送kill -USR1命令
gracefully shutting down用户发送kill -WINCH命令
no servers are inside upstreamupstream下未设置server
no live upstream while connection to upstreamupstream下的server全都挂了
SSL_do_handshake() failed.SSL握手失败
SSL_write() failed(SSL:) while sending to client
(13:Permission denied) while reading upstream
(98:Address already in use) while connection to upstream
(99:Cannot assign requested address) while connection to upstream
ngx_slag_alloc() failed:no memory in SSL session shared cachessl_session_cache 大小不够等原因造成
could not add new SSL session to the session cache while SSL handsharkingssl_session_cache 大小不够等原因造成
send() failed (111:Connection refused)
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