不满意的LinkError： /tmp/snappy-1.1.4-libsnappyjava.so 加载共享库ld-linux-x86-64.so.2时出错：没有这样的文件或目录

java apache-kafka apache-kafka-streams snappy

2022-09-01 06:25:34

我正在尝试在 kubernetes 中运行 Kafka Streams 应用程序。当我启动 pod 时，我得到以下异常：

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)

以前，我尝试过使用docker容器启动kafka和kafka-streams-app，它们工作得很好。这是我第一次尝试使用 Kubernetes。

这是我的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"]

我该怎么做才能解决此问题？请帮帮我。

编辑：

/ # 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

答案 1

在我的情况下，安装缺少的libc6-compat不起作用。应用程序仍抛出。java.lang.UnsatisfiedLinkError

然后我发现在泊坞窗中，存在并且是链接到，但只包含，而不是。/lib64/ld-linux-x86-64.so.2/lib/libc.musl-x86_64.so.1/libld-musl-x86_64.so.1ld-linux-x86-64.so.2

因此，我在dir中添加一个名为linked的文件并解决问题。ld-linux-x86-64.so.2ld-musl-x86_64.so.1/lib

我使用的 Dockerfile：

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"]

结论：

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

答案 2

错误消息指出 *libsnappyjava.so 找不到 ld-linux-x86-64.so.2。这是一个glibc动态加载器，而Alpine图像不能与glibc一起运行。你可以尝试通过在 Dockerfile 中安装 libc6-compat 包来运行它，例如：

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