Dear Atsuhiko,
I did 2 additional tests that you proposed.
I'm not sure what to test next.
■ test1: use InputStream#read() instead of Channel#setOutputStream()
The problem happened.
It seems that in.available() keeps 0.
(1) source
...
Channel channel = null;
channel=thisSession.openChannel("exec");
((ChannelExec)channel).setCommand( "ls -la" );
( (ChannelExec)channel ).setPty( true );
// ByteArrayOutputStream baos = new ByteArrayOutputStream();
// channel.setOutputStream( baos );
InputStream in=channel.getInputStream();
long start = System.currentTimeMillis();
channel.connect();
byte[] tmp=new byte[1024];
while(true){
long end = System.currentTimeMillis();
int readBytes = 0;
if(in.available()>0){
readBytes = in.read(tmp, 0, tmp.length);
}
...
if( ( end - start ) > 30000 ){
System.out.println( (end-start) + "ms, more than 30sec,"
+ " readBytes = " + readBytes +", break");
canContinue = false;
break;
}
...
(2) Network
Client( jsch ) → HUB → SSHD
(3) result
[0] 2010-01-19 13:09:28.68........., average=72ms
..
[0] 2010-01-19 13:25:33.112........., average=72ms
[0] 2010-01-19 13:25:40.344........30006ms, more than 30sec, readBytes =
0, break
■ test2: continue after problem
( comment out "canContinue = false;" )
The problem happened.
And "ps ax | grep sshd | grep notty | wc" is still same.
[r...@rcm26 ~]# ps ax | grep sshd | grep notty | wc
102 612 4790
[0] 2010-01-19 17:16:48.179........., average=72ms30002ms, more than 30sec, not
break
........., average=71ms
[0] 2010-01-19 17:17:32.582........., average=72ms
[r...@rcm26 ~]# ps ax | grep sshd | grep notty | wc
102 612 4790
Sincerely,
----------------------------------
Yukimasa Matsuda
Quatre-i Science Co., Ltd.
e-mail: mats...@i4s.co.jp
http://www.i4s.co.jp
----------------------------------
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