Nginx 服务器性能Bug和性能优化方案（真实经历）

一、遇到的问题

1、问题：本应该是3个ffmpeg ，但是怎么会有5个ffmpeg出现？

2、Lua脚本问题，一直写入日志，导致有大量的日志，这里的错误日志是直接写进nginx的error.log 日志文件的

（1）日志文件

total 1.8G
-rw-r--r-- 1 root root  11M May  9 21:47 access.log
-rw-r--r-- 1 root root 3.1K May  9 21:46 error.log
-rw-r--r-- 1 root root 705M May  9 21:44 live_access.log
-rw-r--r-- 1 root root 1.1G May  9 21:44 nginx_error.log

2017/05/09 21:43:05 时间段详细记录：

2017/05/09 21:43:05 [notice] 154005#0: *2276339 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276301 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255428 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2255382 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2276989 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276946 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255373 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2277509 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255426 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2276852 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276850 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276811 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276416 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276558 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276495 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255454 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2280641 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2255417 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255401 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2257856 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255428 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255372 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255426 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255396 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2276402 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2254567 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255436 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255387 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2276423 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255460 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2255443 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2277380 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276203 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276375 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255467 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2255404 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255485 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2276709 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255473 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2255419 ".m3u8" matches "/live/C
2017/05/09 21:43:05 [notice] 154005#0: *2255443 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255456 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255480 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255460 ".m3u8" does not match "
2017/05/09 21:43:05 [notice] 154005#0: *2255467 ".m3u8" does not match "

2017/05/09 21:36:43 时间段详细记录，太恐怖了，1s写入日志多大240条，难怪nginx的负载飙到54%

2017/05/09 21:36:42 [notice] 143984#0: *2210297 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2106253 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2186550 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2186550 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2204373 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2178827 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2178827 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2174075 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2192938 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2184738 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2178702 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2178827 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2164479 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2164479 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2207950 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2207950 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2206807 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2206807 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2147325 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2147325 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2146090 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2146090 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2202243 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2202243 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2159677 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2181228 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2181228 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2199544 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2129089 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2147325 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2164479 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2144525 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2144525 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2202243 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2128282 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2146090 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2209153 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2209153 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2151087 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2151087 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2087849 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2087849 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2180084 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2194164 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2149424 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2149424 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2132295 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2086470 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2195833 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2195833 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2165986 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2210503 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2210503 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2209153 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2196487 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2196487 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2165986 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2174122 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2184751 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2136083 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2136083 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2175850 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2188260 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2169324 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2160157 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2160157 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2203464 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2203464 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2181228 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2148600 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2204612 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2204612 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2149424 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2186550 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2180900 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2180900 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2149681 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2149681 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2152412 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2197834 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2197834 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2211485 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2211485 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2199276 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2199276 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2136083 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2144525 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2138501 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2138501 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2203464 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2147376 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2147376 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2204612 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2171804 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2171804 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2187796 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2187796 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2160157 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2159339 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2210355 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2175294 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2204800 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2204800 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2191351 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2191351 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2134758 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2205738 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2205738 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2200117 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2200117 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2204001 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2204001 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2142361 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2142361 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2171804 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2202345 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2197156 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2197156 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2196879 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2196879 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2151087 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2193240 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2204977 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2193240 [lua] hls
2017/05/09 21:36:43 [error] 143984#0: *2204977 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2189719 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2189719 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2141027 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2141027 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2165986 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2165986 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2122514 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2190219 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2190219 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2147376 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2098802 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2098802 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2156137 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2156137 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2142361 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2211167 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2205291 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2205291 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2192529 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2192529 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2097916 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2201800 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2201800 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2193020 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2193020 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2141139 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2136709 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2136709 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2159600 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2159600 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2156137 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2210052 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2210053 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2211168 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2211162 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2149892 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2159845 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2194944 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2194944 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2196511 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2206411 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2206411 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2211541 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2159261 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2211541 [lua] hls
2017/05/09 21:36:43 [error] 143984#0: *2159261 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2152418 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2152418 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2194275 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2209256 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2209256 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2208837 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2208837 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2185994 ".m3u8"
2017/05/09 21:36:43 [info] 143984#0: *2210187 client pre
2017/05/09 21:36:43 [notice] 143984#0: *2136709 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2199994 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2199994 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2197135 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2197135 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2189288 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2189288 [lua] hls
2017/05/09 21:36:43 [info] 143984#0: *2208514 client 183
2017/05/09 21:36:43 [info] 143984#0: *2209467 client 183
2017/05/09 21:36:43 [notice] 143984#0: *2204658 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2204658 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2159261 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2201943 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2201943 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2181340 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2197116 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2159600 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2162239 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2162239 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2188389 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2188389 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2203649 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2203649 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2209256 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2133678 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2189211 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2133678 [lua] hls
2017/05/09 21:36:43 [error] 143984#0: *2189211 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2208950 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2208950 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2204405 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2204405 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2165986 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2200375 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2200375 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2168351 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2184419 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2184419 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2183669 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2183669 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2134644 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2162239 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2142432 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2142432 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2162247 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2162247 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2211574 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2197450 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2197450 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2180184 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2203913 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2203913 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2152418 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2202370 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2202370 [lua] hls
2017/05/09 21:36:43 [notice] 143984#0: *2142432 ".m3u8"
2017/05/09 21:36:43 [notice] 143984#0: *2206880 ".m3u8"
2017/05/09 21:36:43 [error] 143984#0: *2206880 [lua] hls
2017/05/09 21:36:44 [notice] 143984#0: *2200453 ".m3u8"

(2)Lua脚本日志写入：

if ( tonumber(res) == 0 or tonumber(res) == 1 ) then          -- 不是签名验证，则直接返回
   ngx.log(ngx.ERR, "error : 不是签名验证，则直接返回::res=== ",res)  
    return
end

解决办法：立即关闭该日志的写入，重启nginx服务器 reload

【1】日志切割工具下载：http://soft.laozuo.org/tools/Knife4File.zip

【2】log日志查看工具：http://www.uvviewsoft.com/logviewer/files/LogViewerPro.zip

3、他们摄像头推流，直播结束后ffmpeg 进程一直在

4、是否针对播流权限认真是否取消掉？

答：暂时先取消掉

6、流状态列表查看（必须的联系他们的人员怎么处理），没有推流但是nginx服务状态一直存在

 解决方案：

修改nginx rtmp配置参数，添加这个参数：drop_idle_publisher 10s;

drop_idle_publisher
语法：drop_idle_publisher timeout
上下文：rtmp, server, application
描述：终止指定时间内闲置(没有音频/视频数据)的发布连接。默认为 off。注意这个仅仅对于发布模式的连接起作用(发送 publish 命令之后)。
 
二、性能优化技巧
1、设置worker_connections：10240

官方解释如下，个人认为是每一个worker进程能并发处理（发起）的最大连接数（包含所有连接数）。不能超过最大文件打开数：在linux终端中输入ulimit -a进行查看

www@ubuntu5:$ ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 126277
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 126277
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

 参考：linux ulimit命令调优系统参数

 2、编译安装过程优化
 

找到源码的这个文件 /nginx-1.10.3/auto/cc/gcc

# debug
CFLAGS="$CFLAGS -g"

不修改代码大小7.3M：

tinywan@tinywan:~/nginx-1.10.3/auto/cc$ ls -lh /usr/local/nginx/sbin/nginx 
-rwxr-xr-x 1 root root 7.3M 3月  31 09:29 /usr/local/nginx/sbin/nginx

修改后的文件大小759K

tinywan@tinywan:~/nginx-1.10.3$ ls -lh /usr/local/nginx/sbin/nginx 
-rwxr-xr-x 1 root root 759K 5月  10 14:35 /usr/local/nginx/sbin/nginx

查看CPU类型

tinywan@tinywan:~/nginx-1.10.3$ cat /proc/cpuinfo | grep "model name"
model name    : Intel(R) Core(TM) i3-4160 CPU @ 3.60GHz
 
 
 Nginx日志分割及自动删除超过30天日志 
#!/bin/bash
# 分割nginx access日志脚本
 
time=`date +%Y%m%d`
logs_path="/usr/local/nginx/logs/"
pid_path="/usr/local/nginx/logs/nginx.pid"
 
#日志分割，按天创建文件夹
cd $logs_path
website=`ls $logs_path/access_* | xargs -n 1 | cut -f 2 -d "_"`
for i in $website
do
  mkdir -p $logs_path/backup/$time/
  mv $logs_path/access_$i $logs_path/backup/$time/$i
done
#向nginx主进程发信号重新打开日志
kill -USR1 `cat ${pid_path}`
 
#每月1日删除所有超过30天日志。
if [ "`date +%d`" = "01" ]; then
  all_list=`ls $logs_path/backup | xargs -n 1`
  for del in $all_list
  do
    let results=$time-$del
    if [ $results -gt 30 ]; then
      rm -rf $logs_path/backup/$del
    fi
  done
fi

注： /usr/local/nginx/logs/下的日志格式为access_domain1.log。

加入计划任务，每天大概0时分割日志：

 
 
 
 
 
 
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原文地址：https://www.cnblogs.com/tinywan/p/6834223.html