AMBARI-18851 : Collector host refresh in Ambari Server is not working in single Metrics collector deployments. (avijayan)
Project: http://git-wip-us.apache.org/repos/asf/ambari/repo Commit: http://git-wip-us.apache.org/repos/asf/ambari/commit/b33c4fcf Tree: http://git-wip-us.apache.org/repos/asf/ambari/tree/b33c4fcf Diff: http://git-wip-us.apache.org/repos/asf/ambari/diff/b33c4fcf Branch: refs/heads/branch-2.5 Commit: b33c4fcf45c8438bdd054f298c5ebc0bc59c6afb Parents: 0b2b59d Author: Aravindan Vijayan <[email protected]> Authored: Mon Nov 14 22:03:58 2016 -0800 Committer: Aravindan Vijayan <[email protected]> Committed: Tue Nov 15 11:06:41 2016 -0800 ---------------------------------------------------------------------- .../metrics/MetricsCollectorHAClusterState.java | 10 ++++++++++ 1 file changed, 10 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/ambari/blob/b33c4fcf/ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsCollectorHAClusterState.java ---------------------------------------------------------------------- diff --git a/ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsCollectorHAClusterState.java b/ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsCollectorHAClusterState.java index 05b4e05..2e6b091 100644 --- a/ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsCollectorHAClusterState.java +++ b/ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsCollectorHAClusterState.java @@ -168,6 +168,16 @@ public class MetricsCollectorHAClusterState { return true; } } + + //If no host is alive, check if some dead collectors have become live. + testAndAddDeadCollectorsToLiveList(); + + //try one more time + for (String host : liveCollectorHosts) { + if (HostStatusHelper.isHostLive(managementController, clusterName, host)) { + return true; + } + } return false; }
