nginx 常见错误释义

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错误信息

错误说明

"upstream prematurely(过早的) closed connection"

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,服务器会将其中一些连接Down掉; 

2)客户关掉了浏览器,而服务器还在给客户端发送数据; 

3)浏览器端按了Stop

"(111: Connection refused) while connecting to upstream"

用户在连接时,若遇到后端upstream挂掉或者不通,会收到该错误

"(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upstream挂掉或者不通,会收到该错误

"(111: Connection refused) while sending request to upstream"

nginxupstream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 timed out) while connecting to upstream"

nginx连接后面的upstream时超时

"(110: Connection timed out) while reading upstream"

nginx读取来自upstream的响应时超时

 

"(110: Connection timed out) while reading response header from upstream"

nginx读取来自upstream的响应头时超时

"(110: Connection timed out) while reading upstream"

nginx读取来自upstream的响应时超时

"(104: Connection reset by peer) while connecting to upstream"

upstream发送了RST,将连接重置

"upstream sent invalid header while reading response header from upstream"

upstream发送的响应头无效

"upstream sent no valid HTTP/1.0 header while reading response header from upstream"

upstream发送的响应头无效

"client intended to send too large body"

用于设置允许接受的客户端请求内容的最大值,默认值是1Mclient发送的body超过了设置值

"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 upstream"

upstream下未配置server

"no live upstreams while connecting to upstream"

upstream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 connecting to upstream"

 

"(99: Cannot assign requested address) while connecting to upstream"

 

"ngx_slab_alloc() failed: no memory in SSL session shared cache"

ssl_session_cache大小不够等原因造成

"could not add new SSL session to the session cache while SSL handshaking"

ssl_session_cache大小不够等原因造成

"send() failed (111: Connection refused)"

 

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