[ https://issues.apache.org/jira/browse/HIVE-22410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
fanshilun updated HIVE-22410: ----------------------------- Description: java.lang.NullPointerException at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimateArrayElements(IncrementalObjectSizeEstimator.java:501) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:443) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:433) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:369) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.cached.SharedCache.populateTableInCache(SharedCache.java:1028) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.cached.CachedStore.prewarm(CachedStore.java:314) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.cached.CachedStore$CacheUpdateMasterWork.run(CachedStore.java:492) [hive-metastore-2.3.5.jar:2.3.5] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_40] at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) [?:1.7.0_40] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) [?:1.7.0_40] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [?:1.7.0_40] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [?:1.7.0_40] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [?:1.7.0_40] at java.lang.Thread.run(Thread.java:724) [?:1.7.0_40] *reason:* Methods estimateArrayElements throw NPE I found that the last class does not appear in the parent (HashMap<Class<?>, Object Estimator> ), and the parent does not contain the information of the ConcurrentHashMap Class. The solution is to initialize the class information before using it. was: java.lang.NullPointerException at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimateArrayElements(IncrementalObjectSizeEstimator.java:501) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:443) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:433) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:369) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.cached.SharedCache.populateTableInCache(SharedCache.java:1028) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.cached.CachedStore.prewarm(CachedStore.java:314) ~[hive-metastore-2.3.5.jar:2.3.5] at org.apache.hadoop.hive.metastore.cached.CachedStore$CacheUpdateMasterWork.run(CachedStore.java:492) [hive-metastore-2.3.5.jar:2.3.5] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_40] at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) [?:1.7.0_40] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) [?:1.7.0_40] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [?:1.7.0_40] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [?:1.7.0_40] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [?:1.7.0_40] at java.lang.Thread.run(Thread.java:724) [?:1.7.0_40] > CachedStore Prewarm Failure NPE > ------------------------------- > > Key: HIVE-22410 > URL: https://issues.apache.org/jira/browse/HIVE-22410 > Project: Hive > Issue Type: Bug > Components: Standalone Metastore > Affects Versions: 3.1.2, 2.3.7 > Environment: JDK 1.7.0_40 > Reporter: fanshilun > Assignee: fanshilun > Priority: Major > Labels: cachedstore > Fix For: 2.3.7, 3.1.3 > > Attachments: HIVE-22410.1.patch > > > java.lang.NullPointerException > at > org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimateArrayElements(IncrementalObjectSizeEstimator.java:501) > ~[hive-metastore-2.3.5.jar:2.3.5] > at > org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:443) > ~[hive-metastore-2.3.5.jar:2.3.5] > at > org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:433) > ~[hive-metastore-2.3.5.jar:2.3.5] > at > org.apache.hadoop.hive.metastore.utils.IncrementalObjectSizeEstimator$ObjectEstimator.estimate(IncrementalObjectSizeEstimator.java:369) > ~[hive-metastore-2.3.5.jar:2.3.5] > at > org.apache.hadoop.hive.metastore.cached.SharedCache.populateTableInCache(SharedCache.java:1028) > ~[hive-metastore-2.3.5.jar:2.3.5] > at > org.apache.hadoop.hive.metastore.cached.CachedStore.prewarm(CachedStore.java:314) > ~[hive-metastore-2.3.5.jar:2.3.5] > at > org.apache.hadoop.hive.metastore.cached.CachedStore$CacheUpdateMasterWork.run(CachedStore.java:492) > [hive-metastore-2.3.5.jar:2.3.5] > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > [?:1.7.0_40] > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) > [?:1.7.0_40] > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) > [?:1.7.0_40] > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) > [?:1.7.0_40] > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > [?:1.7.0_40] > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > [?:1.7.0_40] > at java.lang.Thread.run(Thread.java:724) [?:1.7.0_40] > *reason:* > Methods estimateArrayElements throw NPE > I found that the last class does not appear in the parent (HashMap<Class<?>, > Object Estimator> ), and the parent does not contain the information of the > ConcurrentHashMap Class. > The solution is to initialize the class information before using it. -- This message was sent by Atlassian Jira (v8.3.4#803005)