Uploaded image for project: 'Kite SDK (READ-ONLY)'
  1. Kite SDK (READ-ONLY)
  2. KITE-762

Multiple URIs in hive.metastore.uris configuration may be problematic for Crunch+Kite

          Details

          • Type: Bug
          • Status: Resolved
          • Priority: Major
          • Resolution: Fixed
          • Affects Version/s: 0.17.0
          • Fix Version/s: None
          • Component/s: Data Module
          • Labels:
            None

            Description

            We have a Crunch job, periodically run on YARN through Oozie, that calculates some stats for a Kite dataset that's setup as a Hive external table.

            In one environment, everything works correctly. The job config as recorded by the JobHistory server looks like this:

            hive.metastore.uris=thrift://server1.abc.net:9083
kite.inputPartitionDir=hdfs://ingestiondev/wolfe/storage
kite.inputUri=dataset:hive://server1.abc.net:9083/wolfe/default/storage?hdfs:host=ingestiondev

            In another similar environment the job is failing with this map task exception:

            2014-11-04 18:36:09,402 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.IllegalArgumentException: Missing Hive MetaStore connection URI
	at org.kitesdk.data.spi.hive.MetaStoreUtil.<init>(MetaStoreUtil.java:78)
	at org.kitesdk.data.spi.hive.HiveAbstractMetadataProvider.getMetaStoreUtil(HiveAbstractMetadataProvider.java:56)
	at org.kitesdk.data.spi.hive.HiveAbstractMetadataProvider.resolveNamespace(HiveAbstractMetadataProvider.java:237)
	at org.kitesdk.data.spi.hive.HiveAbstractMetadataProvider.resolveNamespace(HiveAbstractMetadataProvider.java:222)
	at org.kitesdk.data.spi.hive.HiveAbstractMetadataProvider.load(HiveAbstractMetadataProvider.java:95)
	at org.kitesdk.data.spi.filesystem.FileSystemDatasetRepository.load(FileSystemDatasetRepository.java:191)
	at org.kitesdk.data.Datasets.load(Datasets.java:69)
	at org.kitesdk.data.Datasets.load(Datasets.java:113)
	at org.kitesdk.data.mapreduce.DatasetKeyInputFormat.load(DatasetKeyInputFormat.java:226)
	at org.kitesdk.data.mapreduce.DatasetKeyInputFormat.setConf(DatasetKeyInputFormat.java:172)
	at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:73)
	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:726)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)

            The config for the failing job looks like this:

            hive.metastore.uris=thrift://server1.xyz.net:9083,thrift://server2.xyz.net:9083
kite.inputPartitionDir=hdfs://wario/wolfe/default/storage
kite.inputUri=dataset:hive:/wolfe/default/storage?hdfs:host=wario

            I haven't tracked down how the kite.inputUri property is constructed, but it seems odd that it contains the metastore host:port only for the successful job. I think the key difference is likely the multiple URIs in the hive.metastore.uris property for the unsuccessful job. A quick search found some Kite code that doesn't appear to handle multiple URIs correctly [1] (not sure if this is ultimately the culprit for the issue we're seeing, but it does look like a bug).

            We're using CDH 5.1.0.1 and Kite 0.17.0.

            [1] https://github.com/kite-sdk/kite/blob/release-0.17.0/kite-data/kite-data-hive/src/main/java/org/kitesdk/data/spi/hive/HiveAbstractDatasetRepository.java#L88-94

              Attachments

                Issue Links

                links to

                Web Link Pull request

                  Activity

                    People

                    • Assignee:
                      vasas Szabolcs Vasas
                      Reporter:
                      noslowerdna Andrew Olson
                    • Votes:
                      0 Vote for this issue
                      Watchers:
                      2 Start watching this issue

                      Dates

                      • Created:
                        Updated:
                        Resolved: