Pipe broken exception

[pmdoll]

Of recently, I have started seeing this error.

18-Apr-05 13:51:42.848 pablo-4 WARN [planviz.server:0] - 
PLANVIZ server ready
18-Apr-05 13:52:54.414 pablo-4 ERROR [manifold.stream.graph:0] - error in manifold.utils/future-with
                                             java.lang.Thread.run            Thread.java:  745
                                                              ...                             
                         manifold.executor/thread-factory/reify/f           executor.clj:   44
                         io.aleph.dirigiste.Executor$Worker$1.run          Executor.java:   62
                                io.aleph.dirigiste.Executor$3.run          Executor.java:  308
                                                              ...                             
                     manifold.stream.graph/sync-connect/f--auto--              graph.clj:  255
                               manifold.stream.seq.SeqSource/take                seq.clj:   41
                                              clojure.core/empty?               core.clj: 5970
                                                 clojure.core/seq               core.clj:  137
                                                              ...                             
                                              clojure.core/map/fn               core.clj: 2637
                                                 clojure.core/seq               core.clj:  137
                                                              ...                             
                                     byte-streams/fn/f--auto--/fn       byte_streams.clj:  452
                                      byte-streams.protocols/fn/G          protocols.clj:    9
                                                  byte-streams/fn       byte_streams.clj:  701
          java.nio.channels.Channels$ReadableByteChannelImpl.read          Channels.java:  385
ring.middleware.gzip.proxy$java.io.PipedInputStream$ff19274a.read                             
                                    java.io.PipedInputStream.read  PipedInputStream.java:  377
ring.middleware.gzip.proxy$java.io.PipedInputStream$ff19274a.read                             
                                    java.io.PipedInputStream.read  PipedInputStream.java:  321
java.io.IOException: Pipe broken