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80 Commits

Author SHA1 Message Date
Igor Sysoev
8b2bf08165 Cache size accounting fix: actual cache size on disk was less than 
needed by sum of sizes of files loaded by worker processes themselves
while cache loader was running.

The bug has been introduced in r3900.
 2011-08-25 17:29:34 +00:00
Igor Sysoev
0d18687b03 The change in adaptive loader behaviour introduced in r3975: 
now cache loader processes either as many files as specified by loader_files
or works no more than time specified by loader_threshold during each iteration.

loader_threshold was previously used to decrease loader_files or
to increase loader_timeout and this might eventually result in
downgrading loader_files to 1 and increasing loader_timeout to large values
causing loading cache for forever.
 2011-08-22 10:16:49 +00:00
Igor Sysoev
922f106582 loader_files, loader_sleep, and loader_threshold 2011-07-29 15:09:02 +00:00
Igor Sysoev
d5a25a4b97 set correct configuration file values while adding path 
patch by Maxim Dounin
 2011-07-25 10:22:38 +00:00
Igor Sysoev
1850ce09a1 rename ngx_http_file_cache_manager_sleep() to ngx_http_file_cache_loader_sleep() 
and do not use it all in cache manager: this is a vestige of the times when
cache manager loaded cache
 2011-07-25 09:45:00 +00:00
Igor Sysoev
d8ce166e2e do not close connection if cache file is too small: replace it with valid one 2011-07-24 20:04:47 +00:00
Igor Sysoev
c2cafadfa5 elimination of reading cache files by cache loader 2011-07-24 19:46:53 +00:00
Igor Sysoev
92161bac79 fix r3968 2011-07-24 19:43:52 +00:00
Igor Sysoev
6cb6fc4a09 update the previous commit: 
removing dependencies on file uniq since WIN32_FIND_DATA has no such field
 2011-07-24 17:36:26 +00:00
Igor Sysoev
c1250b6a49 The cache loader performs two tasks: inserting cache objects in inactivity 
list and evaluating total cache size. Reading just directory is enough for
this purpose. Elimination of reading cache files saves at least one disk I/O
operation per file.

Preparation for elimination of reading cache files by cache loader:
removing dependencies on the reading:
*) cache node valid_sec and valid_msec are used only for caching errors;
*) upstream buffer size can be used instead of cache node body_start.
 2011-07-24 16:47:31 +00:00
Igor Sysoev
bb389f6111 fuse two if's in one condition 2011-07-24 16:10:06 +00:00
Igor Sysoev
64d024605a style fix 2011-07-24 16:06:24 +00:00
Igor Sysoev
a0202f26c6 fix r3756: release lock to allow other process to delete cache node 
patch by Maxim Dounin
 2011-07-19 10:35:02 +00:00
Igor Sysoev
0d6283918f fix a broken cached response if bypass/no_cache directive values are different, 
the bug has been introduced in r3700
 2011-05-13 10:05:38 +00:00
Igor Sysoev
ef1f33b0db Use more precise stat.st_blocks to account cache size on Unix 
instead of file length rounded to a file system block size.
There is no similar way on Windows, so rounding to a cache->bsize is kept.
 2011-04-22 10:06:43 +00:00
Igor Sysoev
711eeb8514 fix CPU hog in cache manager 
patch by Maxim Dounin
 2011-04-08 15:27:53 +00:00
Igor Sysoev
a256afd064 fix race condition if during reconfiguration two cache managers try 
to delete old inactive entries: one of them removes a entry just locked by
other manager from the queue and the rbtree as long inactive entry,
causes the latter manager to segfault leaving cache mutex locked,
the bug has been introduced in r3727
 2010-09-02 14:31:47 +00:00
Igor Sysoev
7268cc8c6e zero fcn->updating after node allocation 2010-08-04 13:34:23 +00:00
Igor Sysoev
2b74841a4f error status codes could be cached for next request only, 
the bug has been introduced in r3712
 2010-08-04 12:55:27 +00:00
Igor Sysoev
b16b8ddae6 delete surplus assignment 2010-08-03 09:42:53 +00:00
Igor Sysoev
029299aaa4 change logic slightly 2010-08-02 12:34:15 +00:00
Igor Sysoev
c7b2e2a570 change order 2010-08-02 12:32:33 +00:00
Igor Sysoev
2108fabea2 *) delete cache key node after a cache file removal 
*) move fileless cache key node removal in ngx_http_file_cache_delete()
 2010-08-02 12:27:58 +00:00
Igor Sysoev
1cd46b88a4 count cache key node usage for cached error statuses 2010-07-30 12:41:55 +00:00
Igor Sysoev
09ce1e2d89 do not free unused cache node if cache min_uses > 1, 
the bug has been introduced in r3695, r3708, r3711
 2010-07-30 10:20:08 +00:00
Igor Sysoev
9135a0e022 move debug logging inside ngx_http_file_cache_free() 2010-07-28 15:56:56 +00:00
Igor Sysoev
406a68003c several changes in cache cleanup handling: 
*) now ngx_http_file_cache_cleanup() uses ngx_http_file_cache_free()
*) ngx_http_file_cache_free() interface has been changed to accept r->cache
   ngx_http_file_cache_cleanup() must use r->cache, but not r, because
   there can be several r->cache's during request processing, r->cache may
   be NULL at request finalising, etc.
*) test if updating request does not complete correctly
 2010-07-28 15:49:34 +00:00
Igor Sysoev
18b36e5035 fix r3708 and r3695: valid_sec is set only for caching error status codes 2010-07-27 19:11:17 +00:00
Igor Sysoev
4b7637adb6 fix r3695: this commit 
*) freed valid keys zone node
*) and did not decrease cache size, so cache manager process ete CPU time,
   if cache checking max_size was enabled
 2010-07-27 11:22:59 +00:00
Igor Sysoev
b1327bd842 initialize r->cache->file.fd with NGX_INVALID_FILE 2010-07-19 15:28:22 +00:00
Igor Sysoev
f7d659aa52 proxy_cache_pass, fastcgi_cache_bypass, uwsgi_cache_bypass, scgi_cache_bypass 2010-07-19 09:36:04 +00:00
Igor Sysoev
6a47b43234 rename ngx_http_file_cache_create() to ngx_http_file_cache_new() 2010-07-16 10:01:49 +00:00
Igor Sysoev
9aa3d7f667 ngx_http_file_cache_create() 2010-07-15 14:01:02 +00:00
Igor Sysoev
9e9cbee81e ngx_http_file_cache_name() 2010-07-15 13:46:32 +00:00
Igor Sysoev
0e73a5bfb7 style fix 2010-07-15 13:10:05 +00:00
Igor Sysoev
85992f9eb3 delete empty cache zone node if we could not get response to cache 2010-07-15 13:08:51 +00:00
Igor Sysoev
9b2763a245 proxy_no_cache and fastcgi_no_cache 2010-05-24 11:01:05 +00:00
Igor Sysoev
6d45d8a50d *) introduce ngx_time_sigsafe_update() to update the error log time only 
*) change ngx_time_update() interface
 2010-03-25 09:10:10 +00:00
Igor Sysoev
2f916a9721 *) use previously cached GMT offset value to update time from a signal handler 
*) change ngx_time_update() interface since there are no notification methods
   those return time
 2010-03-13 18:08:07 +00:00
Igor Sysoev
593dec8b35 fix cached FastCGI response with large stderr output before header 2010-03-03 10:43:38 +00:00
Igor Sysoev
3662f36a54 fix a cached zero-length body case 2009-12-23 14:46:45 +00:00
Igor Sysoev
601ab90cd4 fix handling cached HTTP/0.9 response 2009-11-29 20:48:01 +00:00
Igor Sysoev
4121aa3440 export aio presence knowledge to prevent using "aio sendfile", 
if aio does not present
 2009-11-05 13:12:30 +00:00
Igor Sysoev
136dd8d1e6 use real file cache length, this fixes cache size counting for responses 
without "Content-Length" header and 304 responses.
 2009-10-07 12:55:58 +00:00
Igor Sysoev
3266171fd4 read_ahead 2009-09-30 13:21:52 +00:00
Igor Sysoev
d1e9567425 do not pass buf with empty cached response, 
this fixes "zero size buf in output" alert
 2009-09-15 15:12:03 +00:00
Igor Sysoev
a962506498 FreeBSD and Linux AIO support 2009-08-28 08:12:35 +00:00
Igor Sysoev
b7a09c5523 allow cross device temporary files atomic copying: 
*) ngx_copy_file()
*) delete ngx_ext_rename_file_t.log_rename_error and .rename_error fields
 2009-08-12 12:05:33 +00:00
Igor Sysoev
703aab0b72 unlock incompletely loaded cache 2009-08-10 15:57:42 +00:00
Igor Sysoev
4413fad0db cache loader process 2009-08-10 13:27:14 +00:00