Mikhail Bautin created HIVE-3809: ------------------------------------ Summary: Concurrency issue in RCFile: multiple threads can use the same decompressor Key: HIVE-3809 URL: https://issues.apache.org/jira/browse/HIVE-3809 Project: Hive Issue Type: Bug Reporter: Mikhail Bautin Priority: Critical
RCFile is not thread-safe, even if each reader is only used by one thread as intended, because it is possible to return decompressors to the pool multiple times by calling close on the reader multiple times. Then, different threads can pick up the same decompressor twice from the pool, resulting in decompression failures. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira