diff options
Diffstat (limited to 'core/src/main/scala/spark/api/python/PythonWorkerFactory.scala')
-rw-r--r-- | core/src/main/scala/spark/api/python/PythonWorkerFactory.scala | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/core/src/main/scala/spark/api/python/PythonWorkerFactory.scala b/core/src/main/scala/spark/api/python/PythonWorkerFactory.scala index 8844411d73..078ad45ce8 100644 --- a/core/src/main/scala/spark/api/python/PythonWorkerFactory.scala +++ b/core/src/main/scala/spark/api/python/PythonWorkerFactory.scala @@ -1,3 +1,20 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + package spark.api.python import java.io.{DataInputStream, IOException} @@ -51,7 +68,6 @@ private[spark] class PythonWorkerFactory(pythonExec: String, envVars: Map[String val workerEnv = pb.environment() workerEnv.putAll(envVars) daemon = pb.start() - daemonPort = new DataInputStream(daemon.getInputStream).readInt() // Redirect the stderr to ours new Thread("stderr reader for " + pythonExec) { @@ -69,6 +85,25 @@ private[spark] class PythonWorkerFactory(pythonExec: String, envVars: Map[String } } }.start() + + val in = new DataInputStream(daemon.getInputStream) + daemonPort = in.readInt() + + // Redirect further stdout output to our stderr + new Thread("stdout reader for " + pythonExec) { + override def run() { + scala.util.control.Exception.ignoring(classOf[IOException]) { + // FIXME HACK: We copy the stream on the level of bytes to + // attempt to dodge encoding problems. + var buf = new Array[Byte](1024) + var len = in.read(buf) + while (len != -1) { + System.err.write(buf, 0, len) + len = in.read(buf) + } + } + } + }.start() } catch { case e => { stopDaemon() |