UnsatisfiedLinkError: /tmp/snappy-1.1.4-libsnappyjava.so Error loading shared library ld-linux-x86-64.so.2: No such file or directory

Question

I am trying to run a Kafka Streams application in kubernetes. When I launch the pod I get the following exception:

Exception in thread "streams-pipe-e19c2d9a-d403-4944-8d26-0ef27ed5c057-StreamThread-1" java.lang.UnsatisfiedLinkError: /tmp/snappy-1.1.4-5cec5405-2ce7-4046-a8bd-922ce96534a0-libsnappyjava.so:  Error loading shared library ld-linux-x86-64.so.2: No such file or directory  (needed by /tmp/snappy-1.1.4-5cec5405-2ce7-4046-a8bd-922ce96534a0-libsnappyjava.so)         at java.lang.ClassLoader$NativeLibrary.load(Native Method)         at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941)         at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1824)         at java.lang.Runtime.load0(Runtime.java:809)         at java.lang.System.load(System.java:1086)         at org.xerial.snappy.SnappyLoader.loadNativeLibrary(SnappyLoader.java:179)         at org.xerial.snappy.SnappyLoader.loadSnappyApi(SnappyLoader.java:154)         at org.xerial.snappy.Snappy.<clinit>(Snappy.java:47)         at org.xerial.snappy.SnappyInputStream.hasNextChunk(SnappyInputStream.java:435)         at org.xerial.snappy.SnappyInputStream.read(SnappyInputStream.java:466)         at java.io.DataInputStream.readByte(DataInputStream.java:265)         at org.apache.kafka.common.utils.ByteUtils.readVarint(ByteUtils.java:168)         at org.apache.kafka.common.record.DefaultRecord.readFrom(DefaultRecord.java:292)         at org.apache.kafka.common.record.DefaultRecordBatch$1.readNext(DefaultRecordBatch.java:264)         at org.apache.kafka.common.record.DefaultRecordBatch$RecordIterator.next(DefaultRecordBatch.java:563)         at org.apache.kafka.common.record.DefaultRecordBatch$RecordIterator.next(DefaultRecordBatch.java:532)         at org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.nextFetchedRecord(Fetcher.java:1060)         at org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.fetchRecords(Fetcher.java:1095)         at org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.access$1200(Fetcher.java:949)         at org.apache.kafka.clients.consumer.internals.Fetcher.fetchRecords(Fetcher.java:570)         at org.apache.kafka.clients.consumer.internals.Fetcher.fetchedRecords(Fetcher.java:531)         at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1146)         at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1103)         at org.apache.kafka.streams.processor.internals.StreamThread.pollRequests(StreamThread.java:851)         at org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:808)         at org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:774)         at org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:744) 

Previously I have tried launching kafka and kafka-streams-app using docker containers and they worked perfectly fine. This is the first time I am trying with Kubernetes.

This is my DockerFile StreamsApp:

FROM openjdk:8u151-jdk-alpine3.7  COPY /target/streams-examples-0.1.jar /streamsApp/  COPY /target/libs /streamsApp/libs  CMD ["java", "-jar", "/streamsApp/streams-examples-0.1.jar"] 

What can I do to get past this issue? Kindly help me out.

EDIT:

/ # ldd /usr/bin/java      /lib/ld-musl-x86_64.so.1 (0x7f03f279a000) Error loading shared library libjli.so: No such file or directory (needed by /usr/bin/java)     libc.musl-x86_64.so.1 => /lib/ld-musl-x86_64.so.1 (0x7f03f279a000) Error relocating /usr/bin/java: JLI_Launch: symbol not found 

Answer 1

In my case, install the missing libc6-compat didn't work. Application still throw java.lang.UnsatisfiedLinkError.

Then I find in the docker, /lib64/ld-linux-x86-64.so.2 exist and is a link to /lib/libc.musl-x86_64.so.1, but /lib only contains ld-musl-x86_64.so.1, not ld-linux-x86-64.so.2.

So I add a file named ld-linux-x86-64.so.2 linked to ld-musl-x86_64.so.1 in /lib dir and solve the problem.

Dockerfile I use:

FROM openjdk:8-jre-alpine COPY entrypoint.sh /entrypoint.sh RUN apk update && \   apk add --no-cache libc6-compat && \   ln -s /lib/libc.musl-x86_64.so.1 /lib/ld-linux-x86-64.so.2 && \   mkdir /app && \   chmod a+x /entrypoint.sh COPY build/libs/*.jar /app ENTRYPOINT ["/entrypoint.sh"] 

In conclusion:

RUN apk update && apk add --no-cache libc6-compat ln -s /lib/libc.musl-x86_64.so.1 /lib/ld-linux-x86-64.so.2 

Answer 2

Error message states that *libsnappyjava.so cannot find ld-linux-x86-64.so.2. This is a glibc dynamic loader, while Alpine image doesn't run with glibc. You may try to get it running by installing libc6-compat package in your Dockerfile, e.g.:

RUN apk update && apk add --no-cache libc6-compat