Apache httpclient giving connection timeout after 5 ot 6 hrs - java

I am using httpclient 4.1.2. If I do a connect to a particular host XYZ and keep
the client program running for more than 5 to 6 hr, connects to the same host XYZ starts giving:
org.apache.http.conn.ConnectTimeoutException: Connect to XYZ timed out
at
org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:377)
at
org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148)
at
org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149)
at
org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
at
org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:573)
at
org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
If I connect to a different host, it will succeed. The problem goes away once
I restart my client program. Connecting to the same host through browser will succeed.
Server is a tomcat 6. Both client and server are running on JRE 5. I have set connection timeout = 20000 and socket timeout = 60000. I am using DefaultHttpClient with SingleClientConnManager.

I've seen similar connectivity problems in these cases:
When the programmer does not completely empty the http response object after every request. In particular when you receive an unexpected response code (e.g. 500) - you must still empty the response object.
When there is a firewall/loadbalancer between the client and the server and the request is not being passed to the server. You could look at the number headers you are passing and make sure this is not too high and discard those that are unnecessary.
NOTE: I would consider these timeout values to be extremely high. In general you would expect the server to respond in a couple of seconds rather than tens of seconds.
The wire level logging can be useful in debugging such issues.

Related

Software caused connection abort: socket write error for KerberosRestTemplate (spring-security-kerberos-client) [duplicate]

Given this stack trace snippet
Caused by: java.net.SocketException:
Software caused connection abort:
socket write error at
java.net.SocketOutputStream.socketWrite0(Native
Method)
I tried to answer the following questions:
What code is throwing this exception? (JVM?/Tomcat?/My code?)
What causes this exception to be thrown?
Regarding #1:
Sun's JVM source doesn't contain this exact message, but I think the text Software caused connection abort: socket write error is from the native implementation of SocketOutputStream:
private native void socketWrite0(FileDescriptor fd, byte[] b, int off,
int len) throws IOException;
Regarding #2
My guess is that it is caused when the client has terminated the connection, before getting the full response (e.g. sent a request, but before getting the full response, it got closed / terminated / offline)
Questions:
Are the above assumptions correct (#1 and #2)?
Can this be diffrentiated from the situation: "could not write to the client, due to a network error on the server side"? or would that render the same error message?
And most important: Is there an official document (e.g from Sun) stating the above?
I need to have a proof that this stack trace is the socket client's "fault", and there is nothing that the server could have done to avoid it. (except catching the exception, or using a non Sun JVM SocketOutputStream, though both don't really avoid the fact the client has terminated)
This error can occur when the local network system aborts a
connection, such as when WinSock closes an established connection
after data retransmission fails (receiver never acknowledges data sent
on a datastream socket).
See this MSDN article. See also Some information about 'Software caused connection abort'.
The java.net.SocketException is thrown when there is an error creating or accessing a socket (such as TCP). This usually can be caused when the server has terminated the connection (without properly closing it), so before getting the full response. In most cases this can be caused either by the timeout issue (e.g. the response takes too much time or server is overloaded with the requests), or the client sent the SYN, but it didn't receive ACK (acknowledgment of the connection termination). For timeout issues, you can consider increasing the timeout value.
The Socket Exception usually comes with the specified detail message about the issue.
Example of detailed messages:
Software caused connection abort: recv failed.
The error indicates an attempt to send the message and the connection has been aborted by your server. If this happened while connecting to the database, this can be related to using not compatible Connector/J JDBC driver.
Possible solution: Make sure you've proper libraries/drivers in your CLASSPATH.
Software caused connection abort: connect.
This can happen when there is a problem to connect to the remote. For example due to virus-checker rejecting the remote mail requests.
Possible solution: Check Virus scan service whether it's blocking the port for the outgoing requests for connections.
Software caused connection abort: socket write error.
Possible solution: Make sure you're writing the correct length of bytes to the stream. So double check what you're sending. See this thread.
Connection reset by peer: socket write error / Connection aborted by peer: socket write error
The application did not check whether keep-alive connection had been timed out on the server side.
Possible solution: Ensure that the HttpClient is non-null before reading from the connection.E13222_01
Connection reset by peer.
The connection has been terminated by the peer (server).
Connection reset.
The connection has been either terminated by the client or closed by the server end of the connection due to request with the request.
See: What's causing my java.net.SocketException: Connection reset?
I have seen this most often when a corporate firewall on a workstation/laptop gets in the way, it kills the connection.
eg. I have a server process and a client process on the same machine. The server is listening on all interfaces (0.0.0.0) and the client attempts a connection to the public/home interface (note not the loopback interface 127.0.0.1).
If the machine is has its network disconnected (eg wifi turned off) then the connection is formed. If the machine is connected to the corporate network (directly or vpn) then the connection is formed.
However, if the machine is connected to a public wifi (or home network) then the firewall kicks in an kills the connection. In this situation connecting the client to the loopback interface works fine, just not to the home/public interface.
Hope this helps.
To prove which component fails I would monitor the TCP/IP communication using wireshark and look who is actaully closing the port, also timeouts could be relevant.
For anyone using simple Client Server programms and getting this error, it is a problem of unclosed (or closed to early) Input or Output Streams.
Have you checked the Tomcat source code and the JVM source ? That may give you more help.
I think your general thinking is good. I would expect a ConnectException in the scenario that you couldn't connect. The above looks very like it's client-driven.
I was facing the same issue.
Commonly This kind of error occurs due to client has closed its connection and server still trying to write on that client.
So make sure that your client has its connection open until server done with its outputstream.
And one more thing, Don`t forgot to close input and output stream.
Hope this helps.
And if still facing issue than brief your problem here in details.
Had an SSLPoke.bat (SSL troubleshooting script) window script that was getting this error despite importing the correct certificates into the cacerts trustore.
C:\Java\jdk1.8.0_111\jre\lib\security>SSLPoke.bat
C:\Java\jdk1.8.0_111\jre\lib\security>"C:\jdk1.8.0_101\jre\bin\java"
`SSLPoke tfs.corp.****.com 443`
java.net.SocketException: Software caused connection abort: recv failed
`at java.net.SocketInputStream.socketRead0(Native Method)`
`at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)`
`at java.net.SocketInputStream.read(SocketInputStream.java:170)`
`at java.net.SocketInputStream.read(SocketInputStream.java:141)`
`at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)`
`at sun.security.ssl.InputRecord.read(InputRecord.java:503)`
`at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)`
`at sun.security.ssl.SSLSocketImpl.performInitialHandshake
(SSLSocketImpl.java:1375)`
`at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)`
`at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)`
`at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:138)`
`at SSLPoke.main(SSLPoke.java:28)`
I then checked some old notes about some network changes at my job. We would
need in some cases to add the JVM parameter
-Djava.net.preferIPv4Stack=true to make connections to certain machines
in our network to avoid this error.
C:\Java\jdk1.8.0_111\jre\lib\security>"C:\Java\jdk1.8.0_111\bin\java"  
**-Djava.net.preferIPv4Stack=true**  SSLPoke tfs.corp.****.com 443
Successfully connected
The code for SSLPoke can be downloaded from here:
https://gist.github.com/4ndrej/4547029
This error happened to me while testing my soap service with SoapUI client, basically I was trying to get a very big message (>500kb) and SoapUI closed the connection by timeout.
On SoapUI go to:
File-->Preferences--Socket Timeout(ms)
...and put a large value, such as 180000 (3 minutes), this won't be the perfect fix for your issue because the file is in fact to large, but at least you will have a response.
Closed connection in another client
In my case, the error was:
java.net.SocketException: Software caused connection abort: recv failed
It was received in eclipse while debugging a java application accessing a H2 database. The source of the error was that I had initially opened the database with SQuirreL to check manually for integrity. I did use the flag to enable multiple connections to the same DB (i.e. AUTO_SERVER=TRUE), so there was no problem connecting to the DB from java.
The error appeared when, after a while --it is a long java process-- I decided to close SQuirreL to free resources. It appears as if SQuirreL were the one "owning" the DB server instance and that it was shut down with the SQuirreL connection.
Restarting the Java application did not yield the error again.
config
Windows 7
Eclipse Kepler
SQuirreL 3.6
org.h2.Driver ver 1.4.192
In the situation explained below, client side will throw such an exception:
The server is asked to authenticate client certificate, but the client provides a certificate which Extended Key Usage doesn't support client auth, so the server doesn't accept the client's certificate, and then it closes the connection.
My server was throwing this exception in the pass 2 days and I solved it by moving the disconnecting function with:
outputStream.close();
inputStream.close();
Client.close();
To the end of the listing thread.
if it will helped anyone.
In my case, I developped the client and the server side, and I have the exception :
Cause : error marshalling arguments; nested exception is:
java.net.SocketException: Software caused connection abort: socket
write error
when classes in client and server are different. I don't download server's classes (Interfaces) on the client, I juste add same files in the project.
But the path must be exactly the same.
For example, on the server project I have java\rmi\services packages with some serviceInterface and implementations, I have to create the same package on the client project. If I change it by java/rmi/server/services for example, I get the above exception.
Same exception if the interface version is different between client and server (even with an empty row added inadvertently ... I think rmi makes a sort of hash of classes to check version ... I don't know...
If it could help ...
I was facing the same problem with wireMock while mocking the rest API calls.
Earlier I was defining the server like this:
WireMockServer wireMockServer = null;
But it should be defined like as shown below:
#Rule
public WireMockRule wireMockRule = new WireMockRule(8089);

J2EE app running on Glassfish v3 is not responding to HTTP requests. App logs success but no data sent back over HTTP

I am supporting another vendors legacy application.
This is a J2EE application that runs on Glassfish v3.1.2.2. It has a REST API implemented using JAX-RS. I have limited visibility to the application and source.
The symptoms are:
make an HTTP request to a REST API
application has its own auditing system, this shows a successful request
no errors in GF logs
GF access log notes the request
0 bytes are returned from the request to the caller
This happens for both remote calls as well as from calls made using curl on localhost.
If we make the same requests to a different port over HTTPS they succeed. We are reluctant to move the calls to that other port without knowing a root cause. These failed intermittently last night and now fail constantly today.
A packet capture of the request shows:
- TCP overhead/handshake
- A GET request
- A single ACK from the application back to the caller
- then nothing after that
What would cause Glassfish v3 to successfully handle and process an HTTP request but return no data?
Is there a mechanism in Glassfish v3 to flush or reset an HTTP listener and its associated thread pool?
Since this happens on a curl request on the same server to localhost I think I can rule out the network being the issue.
The ports being used communicate directly with Glassfish. There is no proxy (like Apache or Nginx) between the caller and the app server.
Are there logging or monitoring settings I should be enabling in Glassfish to observe what the HTTP listener is doing relative to the application and the network stack?
I have obfuscated some examples that show the symptoms:
Glassfish Access log:
"0:0:0:0:0:0:0:1" "NULL-AUTH-USER" "25/Oct/2018:11:21:02 -0500" "GET /api/obfuscated/by/me HTTP/1.1" 200 9002
Curl response for that same call:
* Trying OFBBFUSCATED
* Connected to hostname.local (OFBBFUSCATED) port 11080 (#0)
> GET /api/obfuscated/by/me HTTP/1.1
> Host: hostname.local:11080
> User-Agent: curl/7.43.0
> Accept: */*
> Authorization: Basic asdfdsfsdfdsfsdafsdafsdafw==
>
* Empty reply from server
* Connection #0 to host hostname.local left intact
UPDATE I changed a timeout setting for the HTTP network listener. I bumped it from 30 to 35 seconds because I was seeing a packet capture where the app was sending a FIN after 30 seconds. After making this change it started to work again.
It is not clear if this somehow flushed or reset something or if I had some kind of race condition.
The apparent root cause was high I/O on the system running these services. The applications normally used 50MB/sec, a new process drove that usage to 250MB/sec. Once the I/O problem was resolved all of the HTTP errors went away and haven't come back.

Spring Boot Recaptcha Configuration

I'm developing an application on spring boot, however I needed to integrate recaptcha for security purposes on various forms, however the connection always results in a connection timed out, I verified api and the url with postman and it goes through and returns an answer, however on Java code times run out and I get the error java.net.ConnectException: Connection timed out: connect I don't know what I'm doing wrong I use the postman code that provides on "Java OK HTTP". code is the next one.
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url("https://www.google.com/recaptcha/api/siteverify?secret=XX&response=XXX")
.get()
.addHeader("cache-control", "no-cache")
.addHeader("postman-token", "f47548e1-a9e0-9065-7f76-dced294bddcb")
.build();
Response response = client.newCall(request).execute();
However I don't seem to get where the error is, can someone help me?
You have a Connection timed out error, so we can say that:
since this is not an Unknown host error, you must have a DNS that gives an IPv4 or IPv6 address for www.google.com
since this is not a destination unreachable error, you have a route to a gateway and this gateway is a local router that has a default route.
Therefore, the timeout for connect means you have sent a TCP SYN packet to a destination, and this packet has been dropped somewhere in your local network or at the interface between your network and the Internet, in a firewall (since you have not received any ICMP/ICMPv6 packet saying something was wrong - a standard router should have sent you such an information).
The problem is with the first packet (TCP SYN), so your problem can not be relative to your addHeader() calls in your source code. Those headers are never sent, in your case, with this error.
Since www.google.fr has IPv4 and IPv6 addresses, there are two possibilities:
either you have a local IPv6 router that sends RA advertisments, but is not connected to the Internet with IPv6.
Try this to check this case:
replace:
https://www.google.com/recaptcha/api/siteverify?secret=XX&response=XXX
by:
https://[2a00:1450:400c:c04::6a]/recaptcha/api/siteverify?secret=XX&response=XXX
If you continue to get a timeout, this means you have an IPv6 router that is badly configured.
or you have a firewall and need to use a proxy
replace:
https://www.google.com/recaptcha/api/siteverify?secret=XX&response=XXX
by:
https://74.125.206.104/recaptcha/api/siteverify?secret=XX&response=XXX
If you continue to get a timeout, this means you have a firewall and should use a proxy.

Multiple threading socket issue - Software caused connection abort: socket write error [duplicate]

Given this stack trace snippet
Caused by: java.net.SocketException:
Software caused connection abort:
socket write error at
java.net.SocketOutputStream.socketWrite0(Native
Method)
I tried to answer the following questions:
What code is throwing this exception? (JVM?/Tomcat?/My code?)
What causes this exception to be thrown?
Regarding #1:
Sun's JVM source doesn't contain this exact message, but I think the text Software caused connection abort: socket write error is from the native implementation of SocketOutputStream:
private native void socketWrite0(FileDescriptor fd, byte[] b, int off,
int len) throws IOException;
Regarding #2
My guess is that it is caused when the client has terminated the connection, before getting the full response (e.g. sent a request, but before getting the full response, it got closed / terminated / offline)
Questions:
Are the above assumptions correct (#1 and #2)?
Can this be diffrentiated from the situation: "could not write to the client, due to a network error on the server side"? or would that render the same error message?
And most important: Is there an official document (e.g from Sun) stating the above?
I need to have a proof that this stack trace is the socket client's "fault", and there is nothing that the server could have done to avoid it. (except catching the exception, or using a non Sun JVM SocketOutputStream, though both don't really avoid the fact the client has terminated)
This error can occur when the local network system aborts a
connection, such as when WinSock closes an established connection
after data retransmission fails (receiver never acknowledges data sent
on a datastream socket).
See this MSDN article. See also Some information about 'Software caused connection abort'.
The java.net.SocketException is thrown when there is an error creating or accessing a socket (such as TCP). This usually can be caused when the server has terminated the connection (without properly closing it), so before getting the full response. In most cases this can be caused either by the timeout issue (e.g. the response takes too much time or server is overloaded with the requests), or the client sent the SYN, but it didn't receive ACK (acknowledgment of the connection termination). For timeout issues, you can consider increasing the timeout value.
The Socket Exception usually comes with the specified detail message about the issue.
Example of detailed messages:
Software caused connection abort: recv failed.
The error indicates an attempt to send the message and the connection has been aborted by your server. If this happened while connecting to the database, this can be related to using not compatible Connector/J JDBC driver.
Possible solution: Make sure you've proper libraries/drivers in your CLASSPATH.
Software caused connection abort: connect.
This can happen when there is a problem to connect to the remote. For example due to virus-checker rejecting the remote mail requests.
Possible solution: Check Virus scan service whether it's blocking the port for the outgoing requests for connections.
Software caused connection abort: socket write error.
Possible solution: Make sure you're writing the correct length of bytes to the stream. So double check what you're sending. See this thread.
Connection reset by peer: socket write error / Connection aborted by peer: socket write error
The application did not check whether keep-alive connection had been timed out on the server side.
Possible solution: Ensure that the HttpClient is non-null before reading from the connection.E13222_01
Connection reset by peer.
The connection has been terminated by the peer (server).
Connection reset.
The connection has been either terminated by the client or closed by the server end of the connection due to request with the request.
See: What's causing my java.net.SocketException: Connection reset?
I have seen this most often when a corporate firewall on a workstation/laptop gets in the way, it kills the connection.
eg. I have a server process and a client process on the same machine. The server is listening on all interfaces (0.0.0.0) and the client attempts a connection to the public/home interface (note not the loopback interface 127.0.0.1).
If the machine is has its network disconnected (eg wifi turned off) then the connection is formed. If the machine is connected to the corporate network (directly or vpn) then the connection is formed.
However, if the machine is connected to a public wifi (or home network) then the firewall kicks in an kills the connection. In this situation connecting the client to the loopback interface works fine, just not to the home/public interface.
Hope this helps.
To prove which component fails I would monitor the TCP/IP communication using wireshark and look who is actaully closing the port, also timeouts could be relevant.
For anyone using simple Client Server programms and getting this error, it is a problem of unclosed (or closed to early) Input or Output Streams.
Have you checked the Tomcat source code and the JVM source ? That may give you more help.
I think your general thinking is good. I would expect a ConnectException in the scenario that you couldn't connect. The above looks very like it's client-driven.
I was facing the same issue.
Commonly This kind of error occurs due to client has closed its connection and server still trying to write on that client.
So make sure that your client has its connection open until server done with its outputstream.
And one more thing, Don`t forgot to close input and output stream.
Hope this helps.
And if still facing issue than brief your problem here in details.
Had an SSLPoke.bat (SSL troubleshooting script) window script that was getting this error despite importing the correct certificates into the cacerts trustore.
C:\Java\jdk1.8.0_111\jre\lib\security>SSLPoke.bat
C:\Java\jdk1.8.0_111\jre\lib\security>"C:\jdk1.8.0_101\jre\bin\java"
`SSLPoke tfs.corp.****.com 443`
java.net.SocketException: Software caused connection abort: recv failed
`at java.net.SocketInputStream.socketRead0(Native Method)`
`at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)`
`at java.net.SocketInputStream.read(SocketInputStream.java:170)`
`at java.net.SocketInputStream.read(SocketInputStream.java:141)`
`at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)`
`at sun.security.ssl.InputRecord.read(InputRecord.java:503)`
`at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)`
`at sun.security.ssl.SSLSocketImpl.performInitialHandshake
(SSLSocketImpl.java:1375)`
`at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)`
`at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)`
`at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:138)`
`at SSLPoke.main(SSLPoke.java:28)`
I then checked some old notes about some network changes at my job. We would
need in some cases to add the JVM parameter
-Djava.net.preferIPv4Stack=true to make connections to certain machines
in our network to avoid this error.
C:\Java\jdk1.8.0_111\jre\lib\security>"C:\Java\jdk1.8.0_111\bin\java"  
**-Djava.net.preferIPv4Stack=true**  SSLPoke tfs.corp.****.com 443
Successfully connected
The code for SSLPoke can be downloaded from here:
https://gist.github.com/4ndrej/4547029
This error happened to me while testing my soap service with SoapUI client, basically I was trying to get a very big message (>500kb) and SoapUI closed the connection by timeout.
On SoapUI go to:
File-->Preferences--Socket Timeout(ms)
...and put a large value, such as 180000 (3 minutes), this won't be the perfect fix for your issue because the file is in fact to large, but at least you will have a response.
Closed connection in another client
In my case, the error was:
java.net.SocketException: Software caused connection abort: recv failed
It was received in eclipse while debugging a java application accessing a H2 database. The source of the error was that I had initially opened the database with SQuirreL to check manually for integrity. I did use the flag to enable multiple connections to the same DB (i.e. AUTO_SERVER=TRUE), so there was no problem connecting to the DB from java.
The error appeared when, after a while --it is a long java process-- I decided to close SQuirreL to free resources. It appears as if SQuirreL were the one "owning" the DB server instance and that it was shut down with the SQuirreL connection.
Restarting the Java application did not yield the error again.
config
Windows 7
Eclipse Kepler
SQuirreL 3.6
org.h2.Driver ver 1.4.192
In the situation explained below, client side will throw such an exception:
The server is asked to authenticate client certificate, but the client provides a certificate which Extended Key Usage doesn't support client auth, so the server doesn't accept the client's certificate, and then it closes the connection.
My server was throwing this exception in the pass 2 days and I solved it by moving the disconnecting function with:
outputStream.close();
inputStream.close();
Client.close();
To the end of the listing thread.
if it will helped anyone.
In my case, I developped the client and the server side, and I have the exception :
Cause : error marshalling arguments; nested exception is:
java.net.SocketException: Software caused connection abort: socket
write error
when classes in client and server are different. I don't download server's classes (Interfaces) on the client, I juste add same files in the project.
But the path must be exactly the same.
For example, on the server project I have java\rmi\services packages with some serviceInterface and implementations, I have to create the same package on the client project. If I change it by java/rmi/server/services for example, I get the above exception.
Same exception if the interface version is different between client and server (even with an empty row added inadvertently ... I think rmi makes a sort of hash of classes to check version ... I don't know...
If it could help ...
I was facing the same problem with wireMock while mocking the rest API calls.
Earlier I was defining the server like this:
WireMockServer wireMockServer = null;
But it should be defined like as shown below:
#Rule
public WireMockRule wireMockRule = new WireMockRule(8089);

"java.net.SocketException: Software caused connection abort: socket write error" on streaming multidimensional array [duplicate]

Given this stack trace snippet
Caused by: java.net.SocketException:
Software caused connection abort:
socket write error at
java.net.SocketOutputStream.socketWrite0(Native
Method)
I tried to answer the following questions:
What code is throwing this exception? (JVM?/Tomcat?/My code?)
What causes this exception to be thrown?
Regarding #1:
Sun's JVM source doesn't contain this exact message, but I think the text Software caused connection abort: socket write error is from the native implementation of SocketOutputStream:
private native void socketWrite0(FileDescriptor fd, byte[] b, int off,
int len) throws IOException;
Regarding #2
My guess is that it is caused when the client has terminated the connection, before getting the full response (e.g. sent a request, but before getting the full response, it got closed / terminated / offline)
Questions:
Are the above assumptions correct (#1 and #2)?
Can this be diffrentiated from the situation: "could not write to the client, due to a network error on the server side"? or would that render the same error message?
And most important: Is there an official document (e.g from Sun) stating the above?
I need to have a proof that this stack trace is the socket client's "fault", and there is nothing that the server could have done to avoid it. (except catching the exception, or using a non Sun JVM SocketOutputStream, though both don't really avoid the fact the client has terminated)
This error can occur when the local network system aborts a
connection, such as when WinSock closes an established connection
after data retransmission fails (receiver never acknowledges data sent
on a datastream socket).
See this MSDN article. See also Some information about 'Software caused connection abort'.
The java.net.SocketException is thrown when there is an error creating or accessing a socket (such as TCP). This usually can be caused when the server has terminated the connection (without properly closing it), so before getting the full response. In most cases this can be caused either by the timeout issue (e.g. the response takes too much time or server is overloaded with the requests), or the client sent the SYN, but it didn't receive ACK (acknowledgment of the connection termination). For timeout issues, you can consider increasing the timeout value.
The Socket Exception usually comes with the specified detail message about the issue.
Example of detailed messages:
Software caused connection abort: recv failed.
The error indicates an attempt to send the message and the connection has been aborted by your server. If this happened while connecting to the database, this can be related to using not compatible Connector/J JDBC driver.
Possible solution: Make sure you've proper libraries/drivers in your CLASSPATH.
Software caused connection abort: connect.
This can happen when there is a problem to connect to the remote. For example due to virus-checker rejecting the remote mail requests.
Possible solution: Check Virus scan service whether it's blocking the port for the outgoing requests for connections.
Software caused connection abort: socket write error.
Possible solution: Make sure you're writing the correct length of bytes to the stream. So double check what you're sending. See this thread.
Connection reset by peer: socket write error / Connection aborted by peer: socket write error
The application did not check whether keep-alive connection had been timed out on the server side.
Possible solution: Ensure that the HttpClient is non-null before reading from the connection.E13222_01
Connection reset by peer.
The connection has been terminated by the peer (server).
Connection reset.
The connection has been either terminated by the client or closed by the server end of the connection due to request with the request.
See: What's causing my java.net.SocketException: Connection reset?
I have seen this most often when a corporate firewall on a workstation/laptop gets in the way, it kills the connection.
eg. I have a server process and a client process on the same machine. The server is listening on all interfaces (0.0.0.0) and the client attempts a connection to the public/home interface (note not the loopback interface 127.0.0.1).
If the machine is has its network disconnected (eg wifi turned off) then the connection is formed. If the machine is connected to the corporate network (directly or vpn) then the connection is formed.
However, if the machine is connected to a public wifi (or home network) then the firewall kicks in an kills the connection. In this situation connecting the client to the loopback interface works fine, just not to the home/public interface.
Hope this helps.
To prove which component fails I would monitor the TCP/IP communication using wireshark and look who is actaully closing the port, also timeouts could be relevant.
For anyone using simple Client Server programms and getting this error, it is a problem of unclosed (or closed to early) Input or Output Streams.
Have you checked the Tomcat source code and the JVM source ? That may give you more help.
I think your general thinking is good. I would expect a ConnectException in the scenario that you couldn't connect. The above looks very like it's client-driven.
I was facing the same issue.
Commonly This kind of error occurs due to client has closed its connection and server still trying to write on that client.
So make sure that your client has its connection open until server done with its outputstream.
And one more thing, Don`t forgot to close input and output stream.
Hope this helps.
And if still facing issue than brief your problem here in details.
Had an SSLPoke.bat (SSL troubleshooting script) window script that was getting this error despite importing the correct certificates into the cacerts trustore.
C:\Java\jdk1.8.0_111\jre\lib\security>SSLPoke.bat
C:\Java\jdk1.8.0_111\jre\lib\security>"C:\jdk1.8.0_101\jre\bin\java"
`SSLPoke tfs.corp.****.com 443`
java.net.SocketException: Software caused connection abort: recv failed
`at java.net.SocketInputStream.socketRead0(Native Method)`
`at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)`
`at java.net.SocketInputStream.read(SocketInputStream.java:170)`
`at java.net.SocketInputStream.read(SocketInputStream.java:141)`
`at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)`
`at sun.security.ssl.InputRecord.read(InputRecord.java:503)`
`at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)`
`at sun.security.ssl.SSLSocketImpl.performInitialHandshake
(SSLSocketImpl.java:1375)`
`at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)`
`at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)`
`at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:138)`
`at SSLPoke.main(SSLPoke.java:28)`
I then checked some old notes about some network changes at my job. We would
need in some cases to add the JVM parameter
-Djava.net.preferIPv4Stack=true to make connections to certain machines
in our network to avoid this error.
C:\Java\jdk1.8.0_111\jre\lib\security>"C:\Java\jdk1.8.0_111\bin\java"  
**-Djava.net.preferIPv4Stack=true**  SSLPoke tfs.corp.****.com 443
Successfully connected
The code for SSLPoke can be downloaded from here:
https://gist.github.com/4ndrej/4547029
This error happened to me while testing my soap service with SoapUI client, basically I was trying to get a very big message (>500kb) and SoapUI closed the connection by timeout.
On SoapUI go to:
File-->Preferences--Socket Timeout(ms)
...and put a large value, such as 180000 (3 minutes), this won't be the perfect fix for your issue because the file is in fact to large, but at least you will have a response.
Closed connection in another client
In my case, the error was:
java.net.SocketException: Software caused connection abort: recv failed
It was received in eclipse while debugging a java application accessing a H2 database. The source of the error was that I had initially opened the database with SQuirreL to check manually for integrity. I did use the flag to enable multiple connections to the same DB (i.e. AUTO_SERVER=TRUE), so there was no problem connecting to the DB from java.
The error appeared when, after a while --it is a long java process-- I decided to close SQuirreL to free resources. It appears as if SQuirreL were the one "owning" the DB server instance and that it was shut down with the SQuirreL connection.
Restarting the Java application did not yield the error again.
config
Windows 7
Eclipse Kepler
SQuirreL 3.6
org.h2.Driver ver 1.4.192
In the situation explained below, client side will throw such an exception:
The server is asked to authenticate client certificate, but the client provides a certificate which Extended Key Usage doesn't support client auth, so the server doesn't accept the client's certificate, and then it closes the connection.
My server was throwing this exception in the pass 2 days and I solved it by moving the disconnecting function with:
outputStream.close();
inputStream.close();
Client.close();
To the end of the listing thread.
if it will helped anyone.
In my case, I developped the client and the server side, and I have the exception :
Cause : error marshalling arguments; nested exception is:
java.net.SocketException: Software caused connection abort: socket
write error
when classes in client and server are different. I don't download server's classes (Interfaces) on the client, I juste add same files in the project.
But the path must be exactly the same.
For example, on the server project I have java\rmi\services packages with some serviceInterface and implementations, I have to create the same package on the client project. If I change it by java/rmi/server/services for example, I get the above exception.
Same exception if the interface version is different between client and server (even with an empty row added inadvertently ... I think rmi makes a sort of hash of classes to check version ... I don't know...
If it could help ...
I was facing the same problem with wireMock while mocking the rest API calls.
Earlier I was defining the server like this:
WireMockServer wireMockServer = null;
But it should be defined like as shown below:
#Rule
public WireMockRule wireMockRule = new WireMockRule(8089);

Categories