SLIDER-201 closing process input stream on fork
diff --git a/slider-core/src/main/java/org/apache/slider/server/services/workflow/LongLivedProcess.java b/slider-core/src/main/java/org/apache/slider/server/services/workflow/LongLivedProcess.java
index 57b989c..cebb035 100644
--- a/slider-core/src/main/java/org/apache/slider/server/services/workflow/LongLivedProcess.java
+++ b/slider-core/src/main/java/org/apache/slider/server/services/workflow/LongLivedProcess.java
@@ -51,6 +51,7 @@
* Key Features:
* <ol>
* <li>Output is streamed to the output logger provided</li>.
+ * <li>the input stream is closed as soon as the process starts.</li>
* <li>The most recent lines of output are saved to a linked list</li>.
* <li>A synchronous callback, {@link LongLivedProcessLifecycleEvent}, is raised on the start
* and finish of a process.</li>
@@ -323,6 +324,8 @@
lifecycleCallback.onProcessStarted(this);
}
try {
+ //close stdin for the process
+ IOUtils.closeStream(process.getOutputStream());
exitCode = process.waitFor();
} catch (InterruptedException e) {
LOG.debug("Process wait interrupted -exiting thread", e);
@@ -416,6 +419,7 @@
}
return getRecentOutput();
}
+
/**
* add the recent line to the list of recent lines; deleting
* an earlier on if the limit is reached.
