[erlang-questions] Yaws process died when executing read_file
Martin Dimitrov
mrtndimitrov@REDACTED
Wed Oct 19 12:46:05 CEST 2011
I do performance testing of our Erlang application with OpenSTA. The
test runs with 300 virtual users. At some point the following errors
start popping up:
Yaws process died: {{badmatch,{error,eacces}},
[{yaws_server,ut_read,1},
{yaws_server,deliver_dyn_file,5},
{yaws_server,aloop,3},
{yaws_server,acceptor0,2},
{proc_lib,init_p_do_apply,3}]}
The call file:read_file(UT#urltype.fullpath) crashes in function
ut_read(UT). I recompiled the module and printed the context. The error
is eacces and UT holds:
{urltype,yaws,
{file_info,14088,regular,read_write,
{{2011,9,13},{11,51,42}},
{{2011,10,17},{17,59,44}},
{{2011,3,16},{13,18,58}},
33206,1,3,0,0,0,0},
"/handler.yaws",
"c:/Temp/harmony/script/../www/handler.yaws",
"/",undefined,undefined,"text/html",
"/handler.yaws",undefined}
The file handler.yaws is the entry point of our app and is called on
every request. When I run the test with 100 or less virtual users I
don't see these errors. So how can it be "Missing permission for reading
the file, or for searching one of the parent directories" as the error
is described in the file:read_file documentation?
Thanks in advance.
Martin
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