[HUDI-4952] Reading from metadata table could fail when there are no completed commits

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 0.12.2
• Component/s: metadata
• Labels: pull-request-available
• Story Points: 2
• Assignee: sivabalan narayanan
• Reporter: sivabalan narayanan
• Created: 30/Sep/22 03:23
• Updated: 13/Oct/22 21:59
• Resolved: 13/Oct/22 21:59

Description

When metadata table is just getting initialized, but first commit is not yet fully complete, reading from metadata table could fail w/ below stacktrace. 

 

22/08/20 02:56:58 ERROR client.RemoteDriver: Failed to run client job 39d720db-b15d-4823-b8b1-54398b143d6e
org.apache.hudi.exception.HoodieException: Error fetching partition paths from metadata table
at org.apache.hudi.common.fs.FSUtils.getAllPartitionPaths(FSUtils.java:315)
at org.apache.hudi.BaseHoodieTableFileIndex.getAllQueryPartitionPaths(BaseHoodieTableFileIndex.java:176)
at org.apache.hudi.BaseHoodieTableFileIndex.loadPartitionPathFiles(BaseHoodieTableFileIndex.java:219)
at org.apache.hudi.BaseHoodieTableFileIndex.doRefresh(BaseHoodieTableFileIndex.java:264)
at org.apache.hudi.BaseHoodieTableFileIndex.(BaseHoodieTableFileIndex.java:139)
at org.apache.hudi.hadoop.HiveHoodieTableFileIndex.(HiveHoodieTableFileIndex.java:49)
at org.apache.hudi.hadoop.HoodieCopyOnWriteTableInputFormat.listStatusForSnapshotMode(HoodieCopyOnWriteTableInputFormat.java:234)
at org.apache.hudi.hadoop.HoodieCopyOnWriteTableInputFormat.listStatus(HoodieCopyOnWriteTableInputFormat.java:141)
at org.apache.hudi.hadoop.HoodieParquetInputFormatBase.listStatus(HoodieParquetInputFormatBase.java:90)
at org.apache.hudi.hadoop.hive.HoodieCombineHiveInputFormat$HoodieCombineFileInputFormatShim.listStatus(HoodieCombineHiveInputFormat.java:889)
at org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat.getSplits(CombineFileInputFormat.java:217)
at org.apache.hadoop.mapred.lib.CombineFileInputFormat.getSplits(CombineFileInputFormat.java:76)
at org.apache.hudi.hadoop.hive.HoodieCombineHiveInputFormat$HoodieCombineFileInputFormatShim.getSplits(HoodieCombineHiveInputFormat.java:942)
at org.apache.hudi.hadoop.hive.HoodieCombineHiveInputFormat.getCombineSplits(HoodieCombineHiveInputFormat.java:241)
at org.apache.hudi.hadoop.hive.HoodieCombineHiveInputFormat.getSplits(HoodieCombineHiveInputFormat.java:363)
at org.apache.spark.rdd.HadoopRDD.getPartitions(HadoopRDD.scala:205)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:253)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:251)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:251)
at org.apache.spark.rdd.RDD.getNumPartitions(RDD.scala:267)
at org.apache.spark.api.java.JavaRDDLike$class.getNumPartitions(JavaRDDLike.scala:65)
at org.apache.spark.api.java.AbstractJavaRDDLike.getNumPartitions(JavaRDDLike.scala:45)
at org.apache.hadoop.hive.ql.exec.spark.SparkPlanGenerator.generateMapInput(SparkPlanGenerator.java:252)
at org.apache.hadoop.hive.ql.exec.spark.SparkPlanGenerator.generateParentTran(SparkPlanGenerator.java:179)
at org.apache.hadoop.hive.ql.exec.spark.SparkPlanGenerator.generate(SparkPlanGenerator.java:130)
at org.apache.hadoop.hive.ql.exec.spark.RemoteHiveSparkClient$JobStatusJob.call(RemoteHiveSparkClient.java:355)
at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:400)
at org.apache.hive.spark.client.RemoteDriver$JobWrapper.call(RemoteDriver.java:365)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.hudi.exception.HoodieMetadataException: Failed to retrieve list of partition from metadata
at org.apache.hudi.metadata.BaseTableMetadata.getAllPartitionPaths(BaseTableMetadata.java:113)
at org.apache.hudi.common.fs.FSUtils.getAllPartitionPaths(FSUtils.java:313)
... 32 more
Caused by: java.util.NoSuchElementException: No value present in Option
at org.apache.hudi.common.util.Option.get(Option.java:89)
at org.apache.hudi.metadata.HoodieTableMetadataUtil.getPartitionFileSlices(HoodieTableMetadataUtil.java:1057)
at org.apache.hudi.metadata.HoodieTableMetadataUtil.getPartitionLatestMergedFileSlices(HoodieTableMetadataUtil.java:1001)
at org.apache.hudi.metadata.HoodieBackedTableMetadata.getPartitionFileSliceToKeysMapping(HoodieBackedTableMetadata.java:377)
at org.apache.hudi.metadata.HoodieBackedTableMetadata.getRecordsByKeys(HoodieBackedTableMetadata.java:204)
at org.apache.hudi.metadata.HoodieBackedTableMetadata.getRecordByKey(HoodieBackedTableMetadata.java:140)
at org.apache.hudi.metadata.BaseTableMetadata.fetchAllPartitionPaths(BaseTableMetadata.java:281)
at org.apache.hudi.metadata.BaseTableMetadata.getAllPartitionPaths(BaseTableMetadata.java:111)
... 33 more
22/08/20 02:56:59 INFO client.RemoteDriver: Shutting down Spark Remote Driver.
22/08/20 02:56:59 INFO server.AbstractConnector: Stopped Spark@ce7a81b{HTTP/1.1,[http/1.1]}{0.0.0.0:0}
22/08/20 02:56:59 INFO ui.SparkUI: Stopped Spark web UI at http://scsp04097:34219
22/08/20 02:56:59 INFO yarn.YarnAllocator: Driver requested a total number of 0 executor(s).
22/08/20 02:56:59 INFO cluster.YarnClusterSchedulerBackend: Shutting down all executors
22/08/20 02:56:59 INFO cluster.YarnSchedulerBackend$YarnDriverEndpoint: Asking each executor to shut down
22/08/20 02:56:59 INFO cluster.SchedulerExtensionServices: Stopping SchedulerExtensionServices
(serviceOption=None,
services=List(),
started=false)
22/08/20 02:56:59 INFO spark.MapOutputTrackerMasterEndpoint: MapOutputTrackerMasterEndpoint stopped!
22/08/20 02:56:59 INFO memory.MemoryStore: MemoryStore cleared 

Issue Links

• links to: GitHub Pull Request #6836