[SPARK-26995] Running Spark in Docker image with Alpine Linux 3.9.0 throws errors when using snappy

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0, 2.4.0
• Fix Version/s: 2.4.4, 3.0.0
• Component/s: Kubernetes, Spark Core
• Assignee: Luca Canali
• Reporter: Luca Canali
• Created: 26/Feb/19 15:46
• Updated: 17/May/20 18:25
• Resolved: 04/Mar/19 17:59

Description

Running Spark in Docker image with Alpine Linux 3.9.0 throws errors when using snappy. 

The issue can be reproduced for example as follows: `Seq(1,2).toDF("id").write.format("parquet").save("DELETEME1")` 
The key part of the error stack is as follows `Caused by: java.lang.UnsatisfiedLinkError: /tmp/snappy-1.1.7-2b4872f1-7c41-4b84-bda1-dbcb8dd0ce4c-libsnappyjava.so: Error loading shared library ld-linux-x86-64.so.2: Noded by /tmp/snappy-1.1.7-2b4872f1-7c41-4b84-bda1-dbcb8dd0ce4c-libsnappyjava.so)` 

The source of the error appears to be due to the fact that libsnappyjava.so needs ld-linux-x86-64.so.2 and looks for it in /lib, while in Alpine Linux 3.9.0 with libc6-compat version 1.1.20-r3 ld-linux-x86-64.so.2 is located in /lib64.
Note: this issue is not present with Alpine Linux 3.8 and libc6-compat version 1.1.19-r10 

Issue Links

• is duplicated by: SPARK-27703 kubernetes jobs are failing with Unsatisfiedlink error
• is duplicated by: SPARK-28981 Missing library for reading/writing Snappy-compressed files
• is duplicated by: SPARK-28347 Error loading glibc library when generatting data on HDFS in K8S
• links to: GitHub Pull Request #23898
• links to: GitHub Pull Request #25255