Bug #1279
closedETags using mtime are different between 32 and 64 bit builds
Description
1/ compile and install lighttpd 1.4.16 under Centos 32 bit on intel 32 bit machine
2/ compile and install lighttpd 1.4.16 under Centos 64 bit on AMD 64 bit machine
3/ add the following to the lighttpd.conf
etag.use-inode = "disable"
4/ have both servers serve the same content that has been syncronized with rsync and verify
32bitMachine# stat index.html # stat index.html File: `index.html' Size: 14 Blocks: 8 IO Block: 4096 regular file Device: 904h/2308d Inode: 7260537 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 1001/ mdrop) Gid: ( 1001/ mdrop) Access: 2007-07-31 09:15:08.000000000 +0000 Modify: 2007-07-31 07:22:09.000000000 +0000 Change: 2007-07-31 07:24:06.000000000 +0000 64bitMachine# stat index.html # stat index.html File: `index.html' Size: 14 Blocks: 8 IO Block: 4096 regular file Device: 904h/2308d Inode: 14157066 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 1001/ mdrop) Gid: ( 1001/ mdrop) Access: 2007-07-31 09:13:55.000000000 +0000 Modify: 2007-07-31 07:22:09.000000000 +0000 Change: 2007-07-31 07:24:14.000000000 +0000
5/ examine the request headers and verify the value of ETag between the architectures
# curl -I http://32bitMachine/index.html HTTP/1.1 200 OK Expires: Tue, 07 Aug 2007 09:22:39 GMT Cache-Control: max-age=604800 Content-Type: text/html Accept-Ranges: bytes ETag: "959993575" Last-Modified: Tue, 31 Jul 2007 07:22:09 GMT Content-Length: 14 Date: Tue, 31 Jul 2007 09:22:39 GMT Server: lighttpd/1.4.16 # curl -I http://64bitMachine/index.html HTTP/1.1 200 OK Expires: Tue, 07 Aug 2007 09:22:47 GMT Cache-Control: max-age=604800 Content-Type: text/html Accept-Ranges: bytes ETag: "6215558779006244678" Last-Modified: Tue, 31 Jul 2007 07:22:09 GMT Content-Length: 14 Date: Tue, 31 Jul 2007 09:22:47 GMT Server: lighttpd/1.4.16
Updated by yusufg over 17 years ago
Hi, Thanks for the bug report. This seems to be tricky to solve since the sizeof(long) which is the datatype of time_t differs between 32 and 64bit.
BTW, I also tested this with Apache on 32/64 bit with the following config line
FileETag MTime Size
and it gives different value too for 32 and 64bit systems
I'd recommend that if you have such a setup you could use either
a) etag.use-mtime = "disable"
b) static-file.etags = "disable"
Updated by pdwalker over 17 years ago
I am unable to confirm that problem with apache 1.3.37.
32BitServer# stat index.html File: `index.html' Size: 139 Blocks: 8 IO Block: 4096 regular file Device: 904h/2308d Inode: 4408777 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 1001/ mdrop) Gid: ( 1001/ mdrop) Access: 2007-08-03 07:16:21.000000000 +0000 Modify: 2006-06-30 04:16:11.000000000 +0000 Change: 2006-06-30 04:16:11.000000000 +0000
32BitServer# ./httpd -v Server version: Apache/1.3.37 (Unix) Server built: Aug 3 2007 07:13:58
32BitServer# curl -I http://32BitServer/ HTTP/1.1 200 OK Date: Fri, 03 Aug 2007 07:16:31 GMT Server: Apache/1.3.37 Cache-Control: max-age=86400 Expires: Sat, 04 Aug 2007 07:16:31 GMT Last-Modified: Fri, 30 Jun 2006 04:16:11 GMT ETag: "8b-44a4a58b" Accept-Ranges: bytes Content-Length: 139 Content-Type: text/html
64BitServer# stat index.html File: `index.html' Size: 139 Blocks: 8 IO Block: 4096 regular file Device: 904h/2308d Inode: 11650858 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 1001/ mdrop) Gid: ( 1001/ mdrop) Access: 2007-07-31 08:06:26.000000000 +0000 Modify: 2006-06-30 04:16:11.000000000 +0000 Change: 2007-07-31 07:31:28.000000000 +0000
64BitServer# ./httpd -v Server version: Apache/1.3.37 (Unix) Server built: Aug 3 2007 07:03:58
64BitServer# curl -I http://64BitServer/ HTTP/1.1 200 OK Date: Fri, 03 Aug 2007 07:26:37 GMT Server: Apache/1.3.37 Cache-Control: max-age=86400 Expires: Sat, 04 Aug 2007 07:26:37 GMT Last-Modified: Fri, 30 Jun 2006 04:16:11 GMT ETag: "8b-44a4a58b" Accept-Ranges: bytes Content-Length: 139 Content-Type: text/html
Updated by pdwalker over 17 years ago
oh, and my httpd.conf
32BitServer# tail -2 httpd.conf FileETag MTime Size
64BitServer# tail -2 httpd.conf FileETag MTime Size
Updated by Anonymous over 17 years ago
Hi, Thanks for the bug report. This seems to be tricky to solve since the sizeof(long) which is the datatype of time_t differs between 32 and 64bit.
BTW, I also tested this with Apache on 32/64 bit with the following config line
FileETag MTime Size
and it gives different value too for 32 and 64bit systems
I'd recommend that if you have such a setup you could use either
a) etag.use-mtime = "disable"
b) static-file.etags = "disable"
-- yusufg
Updated by Anonymous over 17 years ago
Hi Yusuf,
As I said, Apache 1.37 gives the same values under 32 and 64 bit systems, so it would appear that there is a solution.
Updated by moo over 17 years ago
never mind, i recycle previous msg from spamfilter while i didn't notice it was post successfully
Updated by jan over 17 years ago
- Status changed from New to Assigned
Can you try a small patch:
Index: src/etag.c
===================================================================
--- src/etag.c (revision 1881)
+++ src/etag.c (working copy)
@@ -37,7 +37,11 @@
buffer_reset(mut);
buffer_copy_string_len(mut, CONST_STR_LEN("\""));
+#if 0
buffer_append_long(mut, h);
+#else
+ buffer_append_string_buffer(mut, etag);
+#endif
buffer_append_string_len(mut, CONST_STR_LEN("\""));
return 0;
and compare the etags ?
Updated by Anonymous over 17 years ago
Looks like we have a winner with the patched etag.c
- check the build versions to make sure I do have the latest compiled version running
32BitServer# lighttpd -version lighttpd-1.4.16 - a light and fast webserver Build-Date: Aug 13 2007 14:23:22
64BitServer# lighttpd -version lighttpd-1.4.16 - a light and fast webserver Build-Date: Aug 13 2007 14:23:12
- check the file to make sure the mtime and size are the same
32BitServer# stat index.html File: `index.html' Size: 14 Blocks: 8 IO Block: 4096 regular file Device: 902h/2306d Inode: 7701956 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 99/ nobody) Gid: ( 1001/ mdrop) Access: 2007-08-13 14:40:05.000000000 +0000 Modify: 2007-07-31 07:22:09.000000000 +0000 Change: 2007-08-10 19:06:48.000000000 +0000
64BitServer# stat index.html File: `index.html' Size: 14 Blocks: 8 IO Block: 4096 regular file Device: 904h/2308d Inode: 10913010 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 99/ nobody) Gid: ( 1001/ mdrop) Access: 2007-08-13 14:04:38.000000000 +0000 Modify: 2007-07-31 07:22:09.000000000 +0000 Change: 2007-08-10 19:06:50.000000000 +0000
- disable both inode and mtime in the lighttpd.conf
32BitServer# tail -2 lighttpd.conf etag.use-inode = "disable" etag.use-mtime = "disable"
64BitServer# tail -2 lighttpd.conf etag.use-inode = "disable" etag.use-mtime = "disable"
- verify the results returned after restarting lighttpd and verify the etags are the same
32BitServer# curl -I http://32BitServer/index.html HTTP/1.1 200 OK Expires: Mon, 20 Aug 2007 14:09:27 GMT Cache-Control: max-age=604800 Content-Type: text/html Accept-Ranges: bytes ETag: "1594784" Last-Modified: Tue, 31 Jul 2007 07:22:09 GMT Content-Length: 14 Date: Mon, 13 Aug 2007 14:09:27 GMT Server: lighttpd/1.4.16
$ curl -I http://64BitServer/index.html HTTP/1.1 200 OK Expires: Mon, 20 Aug 2007 14:09:36 GMT Cache-Control: max-age=604800 Content-Type: text/html Accept-Ranges: bytes ETag: "1594784" Last-Modified: Tue, 31 Jul 2007 07:22:09 GMT Content-Length: 14 Date: Mon, 13 Aug 2007 14:09:36 GMT Server: lighttpd/1.4.16
- now enable mtime etags
32BitServer# tail -2 lighttpd.conf etag.use-inode = "disable" etag.use-mtime = "enable"
64BitServer# tail -2 lighttpd.conf etag.use-inode = "disable" etag.use-mtime = "enable"
- restart lighttpd and verify the etag
32BitServer# curl -I http://32BitServer/index.html HTTP/1.1 200 OK Expires: Mon, 20 Aug 2007 14:38:17 GMT Cache-Control: max-age=604800 Content-Type: text/html Accept-Ranges: bytes ETag: "14-1185866529" Last-Modified: Tue, 31 Jul 2007 07:22:09 GMT Content-Length: 14 Date: Mon, 13 Aug 2007 14:38:17 GMT Server: lighttpd/1.4.16
64BitServer# curl -I http://64BitServer/index.html HTTP/1.1 200 OK Expires: Mon, 20 Aug 2007 14:38:15 GMT Cache-Control: max-age=604800 Content-Type: text/html Accept-Ranges: bytes ETag: "14-1185866529" Last-Modified: Tue, 31 Jul 2007 07:22:09 GMT Content-Length: 14 Date: Mon, 13 Aug 2007 14:38:15 GMT Server: lighttpd/1.4.16
- The OS is Centos 4.5 32 bit on an Intel Xeon for 32BitMachine
- The OS is Centos 4.5 64 bit on an AMD 248 cpu for 64BitMachine
Hope that helps.
Updated by pdwalker over 17 years ago
(oh, that last post was by me, sorry, forgot to login)
Updated by jan over 17 years ago
- Status changed from Assigned to Fixed
- Resolution set to fixed
fixed in r1908 for 1.4.x and r1909 for 1.5.0
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