commit 62113cb2d30790590220ee5343a83a918de7e961
author Aravindan Vijayan <avijayan@hortonworks.com> Wed Apr 04 09:20:30 2018 -0700
committer avijayanhwx <avijayan@hortonworks.com> Wed Apr 04 20:07:16 2018 -0700
tree ce933464fb74047c4037557d079ea6fc7efa2504
parent 07af789054b890d97f91870ef9e1d7bc31b2a619

AMBARI-23427 : Metrics Collector stops after starting. Fix Metadata load issue.

ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java

diff --git a/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java b/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java
index 7535b50..69307d1 100644
--- a/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java
+++ b/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java
@@ -1774,7 +1774,11 @@
       rs = stmt.executeQuery();
 
       while (rs.next()) {
-        TimelineMetricHostMetadata hostMetadata = new TimelineMetricHostMetadata(new HashSet<>(Arrays.asList(StringUtils.split(rs.getString("APP_IDS"), ","))));
+        String appIds = rs.getString("APP_IDS");
+        TimelineMetricHostMetadata hostMetadata = new TimelineMetricHostMetadata(new HashSet<>());
+        if (StringUtils.isNotEmpty(appIds)) {
+          hostMetadata = new TimelineMetricHostMetadata(new HashSet<>(Arrays.asList(StringUtils.split(appIds, ","))));
+        }
         hostMetadata.setUuid(rs.getBytes("UUID"));
         hostedAppMap.put(rs.getString("HOSTNAME"), hostMetadata);
       }