https://issues.apache.org/bugzilla/show_bug.cgi?id=51863
Bug #: 51863
Summary: Lots of ESTABLISHED connection with HttpClient 4
implementation (ws HttpClient 3.1 impl)
Product: JMeter
Version: Nightly (Please specify date)
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: HTTP
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
http://mail-archives.apache.org/mod_mbox/jakarta-dev/201108.mbox/%3CCAOGo0VaUMsYQT1pY-JbGeGPfDPbBiBsPzzN1_7W5b3T9=D=j...@mail.gmail.com%3E
Today, I try a load test on a Content Delivery Network (CDN) with HC3.1 vs HC4
with last JMeter trunk (r1173449).
(OpenJDK 6 or Sun JDK 7, GNU/Linux Debian 6.0 64 bits)
My script :
Test only static resources (gif, png, jpeg) with direct HTTP Request
100 users
Ramp up : 100 secs
Duration test : 300 secs (5min)
Each iteration execute 39 HTTP requests
HTTP requests : Keep Alive true
I have this issue (on 8 same tests: 4 HC3.1 and 4 HC4.1) :
With HC3.1 after ramp up period:
netstat -tplna|grep java|grep ESTA|wc -l
100
With HC4.1 at beginning and after ramp up :
netstat -tplna| grep java | grep ESTA | wc -l
1145 (value change between ~1000-1150)
I make a tcp dump and analyze with wireshark.
With HC3.1 : 0-42 secs : 43 TCP conversations (inside several HTTP GET and
response)
With HC4.1 : 0-44 secs : 3011 TCP conversations (inside one HTTP GET and one
response)
HTTP conversations show Keep-Alive header (HC3 and HC4)
I suppose that is a close keep alive connection problem with JMeter.
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