CODEWITHSUNDEEP
javaunit-testingjmeterload-testingsocketexception
jayesh
jayesh

Reputation: 2492

jmeter give an error No buffer space available (maximum connections reached?): connect

Number of threads = 20 
Ramp-up period = 10 
Loop count = 200

gives an error after some time: 

java.net.SocketException: No buffer space available (maximum connections reached?): connect
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:529)
    at java.net.Socket.connect(Socket.java:478)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:163)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:395)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:234)
    at sun.net.www.http.HttpClient.New(HttpClient.java:307)
    at sun.net.www.http.HttpClient.New(HttpClient.java:324)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:970)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:911)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
    at org.apache.jmeter.protocol.http.sampler.HTTPJavaImpl.sample(HTTPJavaImpl.java:483)
    at org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:62)
    at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1018)
    at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1004)
    at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:411)
    at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:297)
    at java.lang.Thread.run(Thread.java:662)

Upvotes: 2

Views: 7167

Answers (2)

Oliver Lloyd
Oliver Lloyd

Reputation: 5004

Might be that you are not closing connections. Try changing the Keep Alive option on the sampler but remember to check what is actually being sent with real requests from a real browser (you don't want to mask a potential issue). It could also be that your server is not configured to close connections, which again may be a real problem with you application.

Upvotes: 0

Aliaksandr Belik
Aliaksandr Belik

Reputation: 12873

Seems you likely have problems not with your jmeter instance but with os / env.

  1. Look into advises per these links:
    Hunt down java.net.SocketException: No buffer space available
    http://www.codeweblog.com/no-buffer-space-available/

  2. If you are running your jmeter supposably on OS like WinXP please look into these instructions.

Upvotes: 2

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