[jira] [Created] (FLINK-29212) Properly load Hadoop native libraries in Flink docker iamges

["Robert Metzger (Jira)" <ji...@apache.org>]

Robert Metzger created FLINK-29212:
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             Summary: Properly load Hadoop native libraries in Flink docker iamges
                 Key: FLINK-29212
                 URL: https://issues.apache.org/jira/browse/FLINK-29212
             Project: Flink
          Issue Type: Bug
          Components: flink-docker
    Affects Versions: 1.17.0
            Reporter: Robert Metzger


On startup, Flink logs:

{code:java}
2022-09-04 12:36:03.559 [main] WARN  org.apache.hadoop.util.NativeCodeLoader  - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
{code}

Hadoop native libraries are used for:
- Compression Codecs (bzip2, lz4, zlib)
- Native IO utilities for HDFS Short-Circuit Local Reads and Centralized Cache Management in HDFS
- CRC32 checksum implementation
(Source: https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/NativeLibraries.html)

Resolving this for the docker images we are providing should be easy, remove one unnecessary WARNing and provide performance benefits for some users.






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