[jira] [Created] (SPARK-18700) getCached in HiveMetastoreCatalog not thread safe cause driver OOM

["Li Yuanjian (JIRA)" <ji...@apache.org>]

Li Yuanjian created SPARK-18700:
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             Summary: getCached in HiveMetastoreCatalog not thread safe cause driver OOM
                 Key: SPARK-18700
                 URL: https://issues.apache.org/jira/browse/SPARK-18700
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.0.0, 1.6.1
            Reporter: Li Yuanjian


In our spark sql platform, each query use same HiveContext and independent thread, new data will append to tables as new partitions every 30min. After a new partition added to table T, we should call refreshTable to clear T’s cache in cachedDataSourceTables
to make the new partition searchable. 
For the table have more partitions and files(much bigger than spark.sql.sources.parallelPartitionDiscovery.threshold), a new query of table T will start a job to fetch all FileStatus in listLeafFiles function. Because of the huge number of files, the job will run several seconds, during the time, new queries of table T will also start new jobs to fetch FileStatus because of the function of getCache is not thread safe. Final cause a driver OOM.



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