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-rw-r--r--core/src/main/scala/spark/scheduler/cluster/TaskSetManager.scala3
1 files changed, 2 insertions, 1 deletions
diff --git a/core/src/main/scala/spark/scheduler/cluster/TaskSetManager.scala b/core/src/main/scala/spark/scheduler/cluster/TaskSetManager.scala
index cf4aae03a7..a842afcdeb 100644
--- a/core/src/main/scala/spark/scheduler/cluster/TaskSetManager.scala
+++ b/core/src/main/scala/spark/scheduler/cluster/TaskSetManager.scala
@@ -201,7 +201,8 @@ private[spark] class TaskSetManager(
val taskId = sched.newTaskId()
// Figure out whether this should count as a preferred launch
val preferred = isPreferredLocation(task, host)
- val prefStr = if (preferred) "preferred" else "non-preferred"
+ val prefStr = if (preferred) "preferred"
+ else "non-preferred, not one of " + task.preferredLocations.mkString(", ")
logInfo("Starting task %s:%d as TID %s on slave %s: %s (%s)".format(
taskSet.id, index, taskId, slaveId, host, prefStr))
// Do various bookkeeping