Merge branch 'dev' into dev

dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/HadoopUtils.java

@@ -63,7 +63,7 @@ public class HadoopUtils implements Closeable {
 
     private static final LoadingCache<String, HadoopUtils> cache = CacheBuilder
             .newBuilder()
-            .expireAfterWrite(PropertyUtils.getInt(Constants.KERBEROS_EXPIRE_TIME, 7), TimeUnit.DAYS)
+            .expireAfterWrite(PropertyUtils.getInt(Constants.KERBEROS_EXPIRE_TIME, 2), TimeUnit.HOURS)
             .build(new CacheLoader<String, HadoopUtils>() {
                 @Override
                 public HadoopUtils load(String key) throws Exception {

dolphinscheduler-common/src/main/resources/common.properties

@@ -65,4 +65,6 @@ yarn.job.history.status.address=http://ds1:19888/ws/v1/history/mapreduce/jobs/%s
 # system env path
 #dolphinscheduler.env.path=env/dolphinscheduler_env.sh
 development.state=false
-kerberos.expire.time=7
+
+# kerberos tgt expire time, unit is hours
+kerberos.expire.time=2