java - Connection was forcibly closed by the remote host -

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i have java.nio.channels.socketchannel in jscsi implamantation disconnecting when try open driver size greater 4gb. iscsi rfc says basicheadersegment.bhs_fixed_size may 48, position can read bytes on channel. java doc says 5 types of errors, app throwing last 1 doesn't specific information. 1 - notyetconnectedexception 2 - closedchannelexception 3 - asynchronouscloseexception 4 - closedbyinterruptexception 5 - ioexception

public final int read(final socketchannel schannel) throws internetscsiexception, ioexception, digestexception { // read basic header segment first determine total length of // protocol data unit. clear();  final bytebuffer bhs = bytebuffer.allocate(basicheadersegment.bhs_fixed_size); int len = 0; while (len < basicheadersegment.bhs_fixed_size) {     int lens = schannel.read(bhs);     if (lens == -1) {         // channel closed @ target (e.g. target         // not support multiple connections)         // throw new closedchannelexception();         return lens;     }     len += lens;     logger.trace("receiving through socketchannel: " + len + " of maximal " + basicheadersegment.bhs_fixed_size);  } bhs.flip();

error:

java.io.ioexception: existing connection forcibly closed remote host     @ sun.nio.ch.socketdispatcher.read0(native method)     @ sun.nio.ch.socketdispatcher.read(socketdispatcher.java:43)     @ sun.nio.ch.ioutil.readintonativebuffer(ioutil.java:223)     @ sun.nio.ch.ioutil.read(ioutil.java:197)     @ sun.nio.ch.socketchannelimpl.read(socketchannelimpl.java:379)     @ org.jscsi.parser.protocoldataunit.read(protocoldataunit.java:417)     @ org.jscsi.target.connection.targetsenderworker.receivefromwire(targetsenderworker.java:145)     @ org.jscsi.target.connection.connection$targetconnection.receivepdu(connection.java:217)     @ org.jscsi.target.connection.phase.targetfullfeaturephase.execute(targetfullfeaturephase.java:96)     @ org.jscsi.target.connection.connection$targetconnection.call(connection.java:264)     @ org.jscsi.target.connection.connection$targetconnection.call(connection.java:79)     @ java.util.concurrent.futuretask.run(futuretask.java:262)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615)     @ java.lang.thread.run(thread.java:744) [pool-9-thread-1] info org.jscsi.target.connection

thanks in advance, felipe

your problem description incorrect. socketchannel isn't closed: connection is; , isn't happening when try open connection: happening when read it.

this results sending after peer has closed connection, in turn means had sent didn't understand.


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