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[SPARK-57650][YARN][TESTS] Allow AMs to use the whole queue in BaseYarnClusterSuite to fix ACCEPTED-state timeouts #56715

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[SPARK-57650][YARN][TESTS] Allow AMs to use the whole queue in BaseYarnClusterSuite to fix ACCEPTED-state timeouts #56715

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7 changes: 7 additions & 0 deletions ...urce-managers/yarn/src/test/scala/org/apache/spark/deploy/yarn/BaseYarnClusterSuite.scala
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Expand Up @@ -103,6 +103,13 @@ abstract class BaseYarnClusterSuite extends SparkFunSuite with Matchers {
yarnConf.set("yarn.scheduler.capacity.root.default.acl_submit_applications", "*")
yarnConf.set("yarn.scheduler.capacity.root.default.acl_administer_queue", "*")
yarnConf.setInt("yarn.scheduler.capacity.node-locality-delay", -1)
// `maximum-am-resource-percent` defaults to 0.1, which caps the queue's total AM resource
// usage to 10% of its capacity. On memory-constrained CI runners this becomes ~1GB, smaller
// than the AM/driver memory these tests request (1-2GB), so applications get stuck in the
// ACCEPTED state (never activated) and the suite times out waiting for a final state. Let
// AMs use the whole queue in tests so applications are always activated.
yarnConf.setFloat("yarn.scheduler.capacity.maximum-am-resource-percent", 1.0f)
yarnConf.setFloat("yarn.scheduler.capacity.root.default.maximum-am-resource-percent", 1.0f)

// Support both IPv4 and IPv6
yarnConf.set("yarn.resourcemanager.hostname", Utils.localHostNameForURI())
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