# error.log 分析 日志位置：/var/log/nginx ## 橫向 ``` 2018/10/13 14:21:20 [warn] 1787#1787: *7557 an upstream response is buffered to a temporary file /var/cache/nginx/fastcgi_temp/2/00/0000000002 while reading upstream, client: 223.11.19.15, server: tmc.sxctkj.cc, request: "GET /phpinfo.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "tmc.sxctkj.cc" ``` ## 縱向 | 記錄 | 說明 | | ------------ | ------------ | | 2018/10/13 14:21:20 | 訪問時間 | | [warn] | 報警 | | 1787#1787: *7557 an upstream response is buffered to a temporary file /var/cache/nginx/fastcgi_temp/2/00/0000000002 while reading upstream, | 不知道 | | client: 223.11.19.15, | 客戶端IP | | server: tmc.xxctkj.cc, | 服務端訪問地址 | | request: "GET /phpinfo.php HTTP/1.1", | 訪問的文件 | | upstream: "fastcgi://127.0.0.1:9000", | fastcgi上游 | | host: "tmc.sxctkj.cc" | 域名 | ## 相關 https://www.cnblogs.com/aoniboy/p/4866395.html | 錯誤信息 | 錯誤說明 | | --- | --- | | "upstream prematurely（過早的） closed connection" | 請求uri的時候出現的異常，是由于upstream還未返回應答給用戶時用戶斷掉連接造成的，對系統沒有影響，可以忽略 | | "recv() failed (104: Connection reset by peer)" | （1）服務器的并發連接數超過了其承載量，服務器會將其中一些連接Down掉； （2）客戶關掉了瀏覽器，而服務器還在給客戶端發送數據； （3）瀏覽器端按了Stop | | "(111: Connection refused) while connecting to upstream" | 用戶在連接時，若遇到后端upstream掛掉或者不通，會收到該錯誤 | | "(111: Connection refused) while reading response header from upstream" | 用戶在連接成功后讀取數據時，若遇到后端upstream掛掉或者不通，會收到該錯誤 | | "(111: Connection refused) while sending request to upstream" | Nginx和upstream連接成功后發送數據時，若遇到后端upstream掛掉或者不通，會收到該錯誤 | | "(110: Connection timed out) while connecting to upstream" | nginx連接后面的upstream時超時 | | "(110: Connection timed out) while reading upstream" | nginx讀取來自upstream的響應時超時 | | "(110: Connection timed out) while reading response header from upstream" | nginx讀取來自upstream的響應頭時超時 | | "(110: Connection timed out) while reading upstream" | nginx讀取來自upstream的響應時超時 | | "(104: Connection reset by peer) while connecting to upstream" | upstream發送了RST，將連接重置 | | "upstream sent invalid header while reading response header from upstream" | upstream發送的響應頭無效 | | "upstream sent no valid HTTP/1.0 header while reading response header from upstream" | upstream發送的響應頭無效 | | "client intended to send too large body" | 用于設置允許接受的客戶端請求內容的最大值，默認值是1M，client發送的body超過了設置值 | | "reopening logs" | 用戶發送kill -USR1命令 | | "gracefully shutting down", | 用戶發送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全都掛了 | | "SSL_do_handshake() failed" | SSL握手失敗 | | "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大小不夠等原因造成 | | "could not add new SSL session to the session cache while SSL handshaking" | ssl_session_cache大小不夠等原因造成 | | "send() failed (111: Connection refused)" | |