https://issues.apache.org/bugzilla/show_bug.cgi?id=47816
Summary: Invalid connection handling over threads
Product: JMeter
Version: unspecified
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: major
Priority: P2
Component: HTTP
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from [email protected] 2009-09-10 08:24:00 PDT ---
Connections are not properly handled as you expect. When a new loop starts for
a single thread, you expect that it would start a new connection. Unfortunately
the open connection (when Keep-Alive is enabled) will still be used. What you
want is dat a new loop would simulate a new user, so it would start a new
connection. This is bad for especially https, which means it doesn't initiate a
new SSL Handshake. This is the case for "HTTP Request" and "HTTP Request
HTTPClient".
And for the sampler "HTTP Request" the open connections are shared among the
threads. When Thread 1 has a connection open and is waiting for the next
request, Thread 2 will use the open connection of Thread 1. What you expect is
that all threads initiates their own connections. Wireshark/tcpdump analyses
shows that SYN's are not initiated for new threads when another thread is in an
idle state but with a connection to a server open.
Each thread (and iteration / loop) should handle its own connections.
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