In my production environment I got the following error in my server:
Cannot forward to error page for request [/api/validation] as the response has already been committed. As a result, the response may have the wrong status code. If your application is running on WebSphere Application Server you may be able to resolve this problem by setting com.ibm.ws.webcontainer.invokeFlushAfterService to false
org.apache.catalina.connector.ClientAbortException: java.io.IOException: Connection reset by peer
Now I created a client and produced 1000 thread every second to call this [/api/validation].
The error I got was
Exception in thread "Thread-9954" org.springframework.web.client.ResourceAccessException: I/O error on POST request for "http://localhost:7080/v1/name/validate": Timeout waiting for connection from pool; nested exception is org.apache.http.conn.ConnectionPoolTimeoutException: Timeout waiting for connection from pool.
Now I want to know is what is the cause of Connection reset by peer .
According to what I know is this error occurs when the client aborts the connection by sending the RST packet.
I set the socket Timeout of my client's rest template to 9000. I make the server sleep for about 15000 MS. Now shouldn't the server get Connection reset by peer as the server tries to send the response after 15 seconds and my client just waits for about 9 seconds. Shouldn't I get the error?
Also in the production environment the wait time (Rest template socket time out) for the client is set to about a 90 seconds ( more than the time the server requires to response). Why is the error being produced in the production?
By using websocket open connection sampler I am making socketcluster connection. I am getting response code as 101 and response message as switching protocols and response headers as:
Response headers:
Connection: Upgrade
Sec-WebSocket-Accept: 8i/hUMajQLY5hYfg0hq9z1U1HxI=
Sec-WebSocket-Version: 13
Upgrade: websocket
WebSocket-Server: uWebSockets
I am not able to find whether it is making connection in server. In server side I am not able to see active users. Throwing some error like below:
1524146177889 - Origin: Worker (PID 14262) [Warning]
SocketProtocolError: Socket hung up
at SCSocket._onSCClose (/home/centos/jioplay/node_modules/socketcluster/node_modules/socketcluster-server/scsocket.js:240:17)
at WebSocket.internalOnClose (/home/centos/jioplay/node_modules/socketcluster/node_modules/socketcluster-server/scsocket.js:75:10)
at process.nextTick (/home/centos/jioplay/node_modules/uws/uws.js:445:27)
at _combinedTickCallback (internal/process/next_tick.js:131:7)
at process._tickCallback (internal/process/next_tick.js:180:9
Please find attached files regarding script and results tree enter image description here.
I have 50 threads test in JMeter with multiple session but when I test it half of the threads is failed and I got this error Connection:
Response code: 500
Response message: Connection refused: connect Aborting action - session 656255658 was closed
Check 2 things:
are you sure you’re not reusing same session accross threads ? Are you correctly correlating the session id.
If issue only happens over some limit (not at 25 users for example, but at 50) then it’s a load issue or configuration limit on server side
I am getting 'Non HTTP response message: Connection timed out: connect' for some HTTP requests so I tried to set the connection/response timeout value to 2 minutes (which is more than the connect time required for failing HTTP requests). To do this, I updated "HTTP Request Defaults" and added 120000 as Connect and Response Timeouts.
HTTP Request Defaults timeouts
[
However, when I run the test again, the HTTP requests still gave the same error. The sample result is as follows -
Load time: 21007
Connect Time: 21007
Latency: 0
Size in bytes: 2212
Sent bytes:0
Headers size in bytes: 0
Body size in bytes: 2212
Sample Count: 1
Error Count: 1
Data type ("text"|"bin"|""): text
Response code: Non HTTP response code: java.net.ConnectException
Response message: Non HTTP response message: Connection timed out: connect
It looks like the timeout value I set in HTTP request Defaults is not getting used here. I also tried to set the value of httpclient.timeout=120000 in jmeter.properties but no change. Have I missed something?
Can somebody please help me with this?
Thanks.
Edit - I have multiple HTTP requests and each run, different requests time-out. Here is one of the HTTP requests -
Updates:
I tried changing the Timeouts values in HTTP Request Defaults to very low (2000) to see how HTTP requests work. In this case, I was getting different error for requests exceeding connection time of 2000ms -
Non HTTP response code: org.apache.http.NoHttpResponseException/Non HTTP response message: : failed to respond
So I think changing the timeout values is not affecting my original error -
Non HTTP response code: java.net.ConnectException/Non HTTP response message: Connection timed out: connect
What is the difference between these two message?
The issue seems more of a server configuration of connection timeout than client side configuration of connection timeout, though both must be configured appropriately.
Default connectionTimeout in tomcat server is 20 seconds. and you request is failed due to connection timeout at 21 seconds. so, though you configured at client side (120000) you must configure appropriately at server side as well, otherwise, server forces to close the connection attempt and raises Connect Timeout exception.
Reference:
The HTTP Connector (refer connectionTimeout attribute)
Recently I have faced the same problem and found that it is the default configuration in my OS (Windows). Check the following links for details:
Where does the socket timeout of 21000 ms come from?
Which is the default TCP connect timeout in Windows?
Shortly, based on articles mentioned in the links above, Windows uses 3000ms initial timeout (InitialRto setting) and does 2 retries with doubled timeout from the previous attempt (MaxSynRetransmissions setting): 3sec + 2*3sec + 4*3sec = 21 sec.
In order to increase this timeout you can set more retries with the following command:
netsh interface tcp set global MaxSynRetransmissions=3
I am trying to execute JDBC request but following error appears:
Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.