[TS-1949] a range request cause crash.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Cache
• Labels: Crash
• Assignee: Alan M. Carroll
• Reporter: jaekyung oh
• Created: 10/Jun/13 08:32
• Updated: 18/Dec/14 05:11
• Resolved: 21/Mar/14 15:58

Description

on ats 3.2.4 when read_while_writer is 1,

a range request for a content(not cached) is ok but same request make a problem while the content is under downloading...

To make crash –
1. First try to get a big content.
wget -O /dev/null http://www.test.com/mp4/aa.mp4
9% [=======> ] 29,068,852 54.2M/s

2. before the first request gets done, send a range request for the last part of the content.
curl --range 300000000-301046986 http://www.test.com/mp4/aa.mp4 2>/dev/null 1> /dev/null

traffic.out shows ----

+++++++++ Incoming Request +++++++++
– State Machine Id: 2
GET http://origin.test.com/mp4/aa.mp4 HTTP/1.1
Range: bytes=300000000-301046986
User-Agent: curl/7.21.2 (x86_64-unknown-linux-gnu) libcurl/7.21.2 OpenSSL/1.0.0c zlib/1.2.5 libidn/1.15 libssh2/1.2.7
Host: www.test.com
Accept: /

+++++++++ Header To Transform +++++++++
– State Machine Id: 2
HTTP/1.1 200 OK
Content-Type: video/mp4
Accept-Ranges: bytes
ETag: "314612005"
Last-Modified: Wed, 13 Feb 2013 12:37:21 GMT
Date: Mon, 10 Jun 2013 08:08:14 GMT
Server: lighttpd/1.4.28

NOTE: Traffic Server received Sig 11: Segmentation fault
/usr/local/ats324/bin/traffic_server - STACK TRACE:
/lib64/libpthread.so.0(+0xfd00)[0x2ba8e23c7d00]
/usr/local/ats324/bin/traffic_server(_ZN7CacheVC12openReadMainEiP5Event+0x93)[0x659493]
/usr/local/ats324/bin/traffic_server[0x658abf]
/usr/local/ats324/bin/traffic_server(_ZN7CacheVC21openReadStartEarliestEiP5Event+0x6fa)[0x65cf4a]
/usr/local/ats324/bin/traffic_server(_ZN7CacheVC14handleReadDoneEiP5Event+0x1c2)[0x6376d2]
/usr/local/ats324/bin/traffic_server(_ZN19AIOCallbackInternal11io_completeEiPv+0x3d)[0x63804d]
/usr/local/ats324/bin/traffic_server(_ZN7EThread13process_eventEP5Eventi+0x90)[0x6b2ed0]
/usr/local/ats324/bin/traffic_server(_ZN7EThread7executeEv+0x5eb)[0x6b3a8b]
/usr/local/ats324/bin/traffic_server[0x6b1cc2]
/lib64/libpthread.so.0(+0x7f05)[0x2ba8e23bff05]
/lib64/libc.so.6(clone+0x6d)[0x2ba8e461010d]
[Jun 10 17:08:19.846] Manager

{0x7fa88b6a0720} FATAL: [LocalManager::pollMgmtProcessServer] Error in read (errno: 104)
[Jun 10 17:08:19.846] Manager {0x7fa88b6a0720}

FATAL: (last system error 104: Connection reset by peer)
[Jun 10 17:08:19.846] Manager

{0x7fa88b6a0720} NOTE: [LocalManager::mgmtShutdown] Executing shutdown request.
[Jun 10 17:08:19.846] Manager {0x7fa88b6a0720}

NOTE: [LocalManager::processShutdown] Executing process shutdown request.
[Jun 10 17:08:19.846] Manager

{0x7fa88b6a0720} ERROR: [LocalManager::sendMgmtMsgToProcesses] Error writing message
[Jun 10 17:08:19.846] Manager {0x7fa88b6a0720}

ERROR: (last system error 32: Broken pipe)
[E. Mgmt] log ==> [TrafficManager] using root directory '/usr/local/ats324'
[Jun 10 17:08:19.871]

{0x7f567e260720}

STATUS: opened /usr/local/ats324/var/log/trafficserver/manager.log

Issue Links

• relates to: TS-1776 Range requests not working right