-
Bug
-
Resolution: Fixed
-
Major
On ci.jenkins-ci.org I noticed that there are a lot of channel reader threads claiming to be connected to remote-slave-6.
ps output indicates that these threads are eating up CPUs, even though the method names suggest they should be blocking.
"Channel reader thread: remote-slave-6" prio=10 tid=0x0000000004be5800 nid=0x1f59 runnable [0x00007fb6722e1000]
java.lang.Thread.State: RUNNABLE
at com.trilead.ssh2.channel.ChannelInputStream.read(ChannelInputStream.java:77)
at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:82)
at hudson.remoting.ChunkedInputStream.readHeader(ChunkedInputStream.java:68)
at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:93)
at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:33)
at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34)
at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48)
"Channel reader thread: remote-slave-6" prio=10 tid=0x0000000004be4000 nid=0x71d8 runnable [0x00007fb673ffe000]
java.lang.Thread.State: RUNNABLE
at com.trilead.ssh2.channel.ChannelInputStream.read(ChannelInputStream.java:79)
at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:82)
at hudson.remoting.ChunkedInputStream.readHeader(ChunkedInputStream.java:68)
at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:93)
at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:33)
at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34)
at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48)
"Channel reader thread: remote-slave-6" prio=10 tid=0x0000000004e48800 nid=0x4edc runnable [0x00007fb6719d8000]
java.lang.Thread.State: RUNNABLE
at com.trilead.ssh2.channel.ChannelInputStream.read(ChannelInputStream.java:79)
at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:82)
at hudson.remoting.ChunkedInputStream.readHeader(ChunkedInputStream.java:67)
at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:93)
at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:33)
at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34)
at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48)
"Channel reader thread: remote-slave-6" prio=10 tid=0x0000000004df2000 nid=0x406d runnable [0x00007fb67b432000]
java.lang.Thread.State: RUNNABLE
at com.trilead.ssh2.channel.ChannelInputStream.read(ChannelInputStream.java:79)
at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:82)
at hudson.remoting.ChunkedInputStream.readHeader(ChunkedInputStream.java:68)
at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:93)
at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:33)
at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34)
at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48)