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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