Github user liyezhang556520 commented on a diff in the pull request:
https://github.com/apache/spark/pull/299#discussion_r15046137
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -123,20 +134,22 @@ private[spark] class CoarseMesosSchedulerBackend(
conf.get("spark.driver.host"),
conf.get("spark.driver.port"),
CoarseGrainedSchedulerBackend.ACTOR_NAME)
+
val uri = conf.get("spark.executor.uri", null)
if (uri == null) {
val runScript = new File(sparkHome,
"./bin/spark-class").getCanonicalPath
command.setValue(
- "\"%s\" org.apache.spark.executor.CoarseGrainedExecutorBackend %s
%s %s %d".format(
- runScript, driverUrl, offer.getSlaveId.getValue,
offer.getHostname, numCores))
+ "\"%s\" org.apache.spark.executor.CoarseGrainedExecutorBackend %s
%s %s %s %d".format(
+ runScript, extraOpts, driverUrl, offer.getSlaveId.getValue,
offer.getHostname, numCores))
--- End diff --
@pwendell <code>extraOpts</code> will be read as arguments of
<code>org.apache.spark.executor.CoarseGrainedExecutorBackend</code>, which will
lead to parse error if <code>extraOpts</code> is not empty. Because the 4th
argument of <code>CoarseGrainedExecutorBackend</code> is <code>Int</code> type,
and if <code>extraOpts</code> is not empty, other values instead of
<code>numCores</code> will be regarded as 4th argument to cast to Int and cause
error. Do I have any misunderstanding of this:)
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