Attachment 252176 Details for Bug 463967 – Strace of an HTTP request for a static file

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Strace of an HTTP request for a static file

strace-staticfile.txt (text/plain), 2.79 KB, created by Denis Roy

on 2015-04-06 11:47:35 EDT

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Creator: Denis Roy

Created: 2015-04-06 11:47:35 EDT

Size: 2.79 KB

patch

obsolete

># Static file in downloads area
>semop(6979586, 0x7fc9865a4b60, 1)       = 0
># Establish socket with client
>epoll_wait(43, {{EPOLLIN, {u32=2276698760, u64=140503541852808}}}, 6, 10000) = 1
>accept(4, {sa_family=AF_INET6, sin6_port=htons(60984), inet_pton(AF_INET6, "::ffff:(snip)", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 44
>semop(6979586, 0x7fc9865a4b6c, 1)       = 0
>getsockname(44, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, "::ffff:(snip)", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0
>fcntl(44, F_GETFL)                      = 0x2 (flags O_RDWR)
>fcntl(44, F_SETFL, O_RDWR|O_NONBLOCK)   = 0
>
># read the http request from the socket
>read(44, "HEAD /modeling/emf/emf/updates/2"..., 8000) = 247
>
># Does the file exist?  If so, walk the directory tree to check permissions
>stat("/home/data/httpd/download.eclipse.org/modeling/emf/emf/updates/2.11milestones/xcore/S201502040412/content.jar", {st_mode=S_IFREG|0664, st_size=9960, ...}) = 0
>lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>lstat("/home/data", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>lstat("/home/data/httpd", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling/emf", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling/emf/emf", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling/emf/emf/updates", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling/emf/emf/updates/2.11milestones", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling/emf/emf/updates/2.11milestones/xcore", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling/emf/emf/updates/2.11milestones/xcore/S201502040412", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0
>lstat("/home/data/httpd/download.eclipse.org/modeling/emf/emf/updates/2.11milestones/xcore/S201502040412/content.jar", {st_mode=S_IFREG|0664, st_size=9960, ...}) = 0
>
># open file and send it. If this file were not on an NFS mount, as is the case on www.eclipse.org, a single sendfile() call would be made
>open("/home/data/httpd/download.eclipse.org/modeling/emf/emf/updates/2.11milestones/xcore/S201502040412/content.jar", O_RDONLY) = 46
>writev(44, [{"HTTP/1.1 200 OK\r\nDate: Mon, 06 A"..., 285}], 1) = 285  # Send to client
>
># Write to the Apache log
>write(38, "(snip) - - [06/Apr/2015:11:23"..., 179) = 179
>shutdown(44, 1 /* send */)              = 0

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Attachments on bug 463967: 252176 | 252177