[TS-1063] prefetch resource leak

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 3.0.2
• Component/s: HTTP

Environment

linux（ubuntu）

• Assignee: Unassigned
• Reporter: yunfei chen
• Created: 26/Dec/11 04:50
• Updated: 04/Nov/14 20:53
• Resolved: 04/Nov/14 20:53

Description

configuration：
records.config
CONFIG proxy.config.prefetch.prefetch_enabled INT 1
CONFIG proxy.config.prefetch.default_url_proto STRING udp
CONFIG proxy.config.prefetch.default_data_proto STRING udp
prefetch.config
prefetch child

[Dec 26 10:07:44.129] Server

{2964810608} WARNING: too many connections, throttling
[Dec 26 10:17:44.176] Server {2964810608}

WARNING: too many connections, throttling

FATAL: ink_memalign: couldn't allocate 524288 bytes at alignment 4096 - insufficient memory
/usr/local/bin/traffic_server - STACK TRACE:
FATAL: ink_memalign: couldn't allocate 524288 bytes at alignment 4096 - insufficient memory
FATAL: ink_memalign: couldn't allocate 524288 bytes at alignment 4096 - insufficient memory
/usr/local/bin/traffic_server - STACK TRACE:
/usr/local/bin/traffic_server - STACK TRACE:
FATAL: ink_memalign: couldn't allocate 524288 bytes at alignment 4096 - insufficient memory
/usr/local/bin/traffic_server - STACK TRACE:
FATAL: ink_memalign: couldn't allocate 524288 bytes at alignment 4096 - insufficient memory
/usr/local/bin/traffic_server - STACK TRACE:
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc

#0 0x0012e416 in __kernel_vsyscall ()
#1 0x005c9941 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2 0x005cce42 in abort () at abort.c:92
#3 0x00520055 in _gnu_cxx::_verbose_terminate_handler() () from /usr/lib/libstdc++.so.6
#4 0x0051df35 in ?? () from /usr/lib/libstdc++.so.6
#5 0x0051df72 in std::terminate() () from /usr/lib/libstdc++.so.6
#6 0x0051e0e1 in __cxa_throw () from /usr/lib/libstdc++.so.6
#7 0x0051e677 in operator new(unsigned int) () from /usr/lib/libstdc++.so.6
#8 0x0051e74d in operator new[](unsigned int) () from /usr/lib/libstdc++.so.6
#9 0x081488fd in DynArray<char>::resize (this=0x748ff4c, new_size=64) at ../lib/ts/DynArray.h:174
#10 0x0815d5da in DynArray<char>::operator() (this=0x748ff4c, idx=0) at ../lib/ts/DynArray.h:122
#11 0x0815a9bb in HtmlParser::ScanHtmlForURL (this=0x748ff3c, r=0xbabb3ac0, url=0xb70921ec, url_end=0xb70921e8) at Update.cc:1874
#12 0x0815a86a in HtmlParser::ParseHtml (this=0x748ff3c, r=0xbabb3ac0, url=0xb70921ec, url_end=0xb70921e8) at Update.cc:1820
#13 0x08140816 in PrefetchTransform::parse_data (this=0x748fe88, reader=0xbabb3ac0) at Prefetch.cc:543
#14 0x0813ffe8 in PrefetchTransform::handle_event (this=0x748fe88, event=1, edata=0x5991b530) at Prefetch.cc:435
#15 0x08104ba5 in Continuation::handleEvent (this=0x748fe88, event=1, data=0x5991b530)
at ../iocore/eventsystem/I_Continuation.h:146
#16 0x0830a9f5 in EThread::process_event (this=0xb7497008, e=0x5991b530, calling_code=1) at UnixEThread.cc:140
#17 0x0830ac38 in EThread::execute (this=0xb7497008) at UnixEThread.cc:189
#18 0x0830900e in spawn_thread_internal (a=0x895df28) at Thread.cc:88
#19 0x00165cc9 in start_thread (arg=0xb7092b70) at pthread_create.c:304
#20 0x0066f69e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Issue Links

• is superceded by: TS-3167 Remove the prefetch feature