Rails [已解决] Incomplete response received from application
网站配置是 nginx+passenger，上传小文件没问题，上传 1M 以上的文件就报这个错了。
nginx 部分配置是
keepalive_timeout 65;
passenger_max_pool_size 6;
client_max_body_size 10m;
nignx 中的日志是：
2015/07/02 11:40:59 [error] 11176#0: 908849 open() "/root/demo/upload/UploadAction" failed (2: No such file or directory), client: 121.28.35.197, server: XXXX, request: "POST /upload/UploadAction HTTP/1.1", host: "XXXX", referrer: "XXXX/html5up-150127225933/" App 11183 stderr: [ 2015-07-02 11:41:03.0486 11205/0x0000000257cfe0(Worker 1) utils.rb:85 ]: ** Exception Errno::ENOSPC in Rack application object (No space left on device @ io_write - /tmp/RackMultipart20150702-11205-1jpgg8n.zip) (process 11205, thread 0x0000000257cfe0(Worker 1)):
2015-07-02 11:41:03.0491 11163/7fb9c2083700 age/Hel/Req/Utils.cpp:89 ]: [Client 1-2493] Sending 502 response: application did not send a complete response 2015/07/02 11:41:03 [error] 11176#0: *909061 recv() failed (104: Connection reset by peer) while reading upstream, client: 61.51.222.47, server: XXXX, request: "POST /upload/pluginzip HTTP/1.1", upstream: "passenger:unix:/tmp/passenger.a5MmWLs/agents.s/server:", host: "XXXX", referrer: "XXXXX"
找不到问题在哪儿
行了一下 RAILS_ENV=production rails s。报了 No space left on device @ io_write - /tmp/RackMultipart20150702-12574-nt8fg4.zip。看来不是nginx的问题。
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 20G 8.2G 11G 44% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 990M 4.0K 990M 1% /dev
tmpfs 201M 400K 200M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 1001M 0 1001M 0% /run/shm
none 100M 0 100M 0% /run/user
overflow 1.0M 72K 952K 8% /tmp
上传文件和这个 /tmp/ 目录有什么关系么
df -k /tmp
显示
overflow 1024 0 1024 0% /tmp
也就是说此时 tmp 只有 1M，这就是文件上传失败的原因，出现这种情况基本都是因为服务器曾经磁盘过载过。
解决方法：
sudo umount -l /tmp