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Detect failed profile fetches

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Summary:

Currently an HTTP error response will still try to be parsed, resulting in these messages:

substr outside of string at /home/davejwatson/local/jemalloc-github/bin/jeprof line 3635, <PROFILE> line 1.
Use of uninitialized value in string eq at /home/davejwatson/local/jemalloc-github/bin/jeprof line 3635, <PROFILE> line 1.
substr outside of string at /home/davejwatson/local/jemalloc-github/bin/jeprof line 3637, <PROFILE> line 1.
Use of uninitialized value in string eq at /home/davejwatson/local/jemalloc-github/bin/jeprof line 3637, <PROFILE> line 1.
/home/davejwatson/jeprof/server.1452638936.localhost.pprof.heap: header size >= 2**16

After this fix, curl will return an error status code that will be correctly checked at line 3536, resulting in this error message:

Failed to get profile: curl -s --fail 'http://localhost:4010/pprof/heap' > /home/davejwatson/jeprof/.tmp.server.1452639085.localhost.pprof.heap: No such file or directory

Test Plan:

Tested with MALLOC_CONF="prof:false".  Also tested fetching symbols.  Didn't test redirects, but this should only affect http error codes >= 400
This commit is contained in:
Dave Watson 2016-01-12 14:48:09 -08:00
parent fdbb950495
commit f459d5a203
1 changed files with 1 additions and 1 deletions
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bin/jeprof.in
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@ -95,7 +95,7 @@ my @EVINCE = ("evince"); # could also be xpdf or perhaps acroread
my @KCACHEGRIND = ("kcachegrind");
my @PS2PDF = ("ps2pdf");
# These are used for dynamic profiles
my @URL_FETCHER = ("curl", "-s");
my @URL_FETCHER = ("curl", "-s", "--fail");
# These are the web pages that servers need to support for dynamic profiles
my $HEAP_PAGE = "/pprof/heap";