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From "Lars Volker (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (IMPALA-5457) OOM during profile serialization leads to crash
Date Tue, 27 Jun 2017 18:24:00 GMT

     [ https://issues.apache.org/jira/browse/IMPALA-5457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Volker resolved IMPALA-5457.
---------------------------------
    Resolution: Duplicate

This should be fixed by IMPALA-5487. If the {{children_}} vector reallocates during the call
to {{size()}}, we may end up with corrupt result.

> OOM during profile serialization leads to crash
> -----------------------------------------------
>
>                 Key: IMPALA-5457
>                 URL: https://issues.apache.org/jira/browse/IMPALA-5457
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>    Affects Versions: Impala 2.8.0
>            Reporter: Lars Volker
>            Priority: Critical
>              Labels: crash
>
> It looks like an oom exception during thrift serialization is not handled correctly and
can lead to a crash. Here is the stack trace of the crashing thread from a minidump.
> {noformat}
>  0  libc-2.12.so!__GI_raise + 0x35
>  1  libc-2.12.so!__GI_abort + 0x175
>  2  libstdc++.so.6!__gnu_cxx::__verbose_terminate_handler() + 0x15d
>  3  libstdc++.so.6!std::rethrow_exception(std::__exception_ptr::exception_ptr) + 0x76
>  4  libstdc++.so.6!std::terminate() + 0x11
>  5  libstdc++.so.6!__cxa_throw + 0x68
>  6  impalad!(anonymous namespace)::handle_oom(void* (*)(void*), void*, bool, bool) [clone
.constprop.53] + 0x3a8
>  7  impalad!operator new(unsigned long) + 0x2b0
>  8  impalad!std::vector<impala::TRuntimeProfileNode, std::allocator<impala::TRuntimeProfileNode>
>::reserve(unsigned long) [new_allocator.h : 104 + 0x10]
>  9  impalad!impala::RuntimeProfile::ToThrift(std::vector<impala::TRuntimeProfileNode,
std::allocator<impala::TRuntimeProfileNode> >*) const [runtime-profile.cc : 755 +
0x8]
> 10  impalad!impala::RuntimeProfile::SerializeToArchiveString(std::basic_stringstream<char,
std::char_traits<char>, std::allocator<char> >*) const [runtime-profile.cc
: 724 + 0x5]
> 11  impalad!impala::ImpalaServer::GetRuntimeProfileStr(impala::TUniqueId const&,
bool, std::basic_stringstream<char, std::char_traits<char>, std::allocator<char>
>*) [impala-server.cc : 571 + 0x5]
> 12  impalad!impala::ImpalaHttpHandler::QueryProfileEncodedHandler(std::map<std::string,
std::string, std::less<std::string>, std::allocator<std::pair<std::string const,
std::string> > > const&, rapidjson::GenericDocument<rapidjson::UTF8<char>,
rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator> >*) [impala-http-handler.cc
: 219 + 0x1c]
> 13  impalad!impala::Webserver::RenderUrlWithTemplate(std::map<std::string, std::string,
std::less<std::string>, std::allocator<std::pair<std::string const, std::string>
> > const&, impala::Webserver::UrlHandler const&, std::basic_stringstream<char,
std::char_traits<char>, std::allocator<char> >*, impala::ContentType*) [function_template.hpp
: 767 + 0x11]
> 14  impalad!impala::Webserver::BeginRequestCallback(sq_connection*, sq_request_info*)
[webserver.cc : 418 + 0x1c]
> 15  impalad!handle_request + 0x740
> 16  impalad!process_new_connection + 0x16d
> 17  impalad!worker_thread + 0x2dd
> 18  libpthread-2.12.so!start_thread + 0xd1
> 19  libc-2.12.so!clone + 0x6d
> {noformat}



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