Github user skonto commented on a diff in the pull request:
https://github.com/apache/spark/pull/17031#discussion_r103280797
--- Diff:
resource-managers/mesos/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosClusterScheduler.scala
---
@@ -737,13 +735,75 @@ private[spark] class MesosClusterScheduler(
if (index != -1) {
pendingRetryDrivers.remove(index)
pendingRetryDriversState.expunge(id)
+ suppressOrRevive()
true
} else {
false
}
}
- def getQueuedDriversSize: Int = queuedDrivers.size
- def getLaunchedDriversSize: Int = launchedDrivers.size
- def getPendingRetryDriversSize: Int = pendingRetryDrivers.size
+ private def copyBuffer(buffer: ArrayBuffer[MesosDriverDescription]):
+ ArrayBuffer[MesosDriverDescription] = {
+ val newBuffer = new ArrayBuffer[MesosDriverDescription](buffer.size)
+ buffer.copyToBuffer(newBuffer)
+ newBuffer
+ }
+
+ /**
+ * Check if the task state is a recoverable state that we can relaunch
the task.
+ * Task state like TASK_ERROR are not relaunchable state since it wasn't
able
+ * to be validated by Mesos.
+ */
+ private def isFailure(state: MesosTaskState): Boolean = {
+ state == MesosTaskState.TASK_FAILED ||
+ state == MesosTaskState.TASK_LOST
+ }
+
+ private def shouldSuppress: Boolean = {
+ return queuedDrivers.isEmpty && pendingRetryDrivers.isEmpty
+ }
+
+ private def suppressOrRevive(): Unit = {
+ if (shouldSuppress && !isSuppressed) {
+ logInfo("Suppressing Offers.")
+ driver.suppressOffers()
+ isSuppressed = true
+ } else if (!shouldSuppress && isSuppressed) {
+ logInfo("Reviving Offers.")
+ driver.reviveOffers()
+ isSuppressed = false
+ }
+ }
+
+ /**
+ * Escape args for Unix-like shells, unless already quoted by the user.
+ * Based on:
http://www.gnu.org/software/bash/manual/html_node/Double-Quotes.html
+ * and http://www.grymoire.com/Unix/Quote.html
+ *
+ * @param value argument
+ * @return escaped argument
+ */
+ private[scheduler] def shellEscape(value: String): String = {
+ val WrappedInQuotes = """^(".+"|'.+')$""".r
+ val ShellSpecialChars = (""".*([ '<>&|\?\*;!#\\(\)"$`]).*""").r
--- End diff --
Parentheses are redundant.
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