chenwen created KYLIN-3508:
------------------------------
Summary: kylin cube kafka streaming lz4 exception
Key: KYLIN-3508
URL: https://issues.apache.org/jira/browse/KYLIN-3508
Project: Kylin
Issue Type: Bug
Components: Streaming
Affects Versions: v2.4.0
Environment: hadoop 2.7.2
hbase 1.2.5
hive 1.2.2
kylin-2.4.0-bin-hbase1x
kafka_2.11-2.0.0
centos 7
Reporter: chenwen
I have a kafka topic using lz4 compression algorithm, then I created a cube in
kylin to consume this topic, it will report the following error, is my
configuration wrong? I switched to the other algorithm gzip, and snappy works
fine.
Error: org.apache.kafka.common.KafkaException: Received exception when fetching
the next record from kylin.log.error-3. If needed, please seek past the record
to continue consumption. at
org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.fetchRecords(Fetcher.java:1201)
at
org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.access$1500(Fetcher.java:1035)
at
org.apache.kafka.clients.consumer.internals.Fetcher.fetchRecords(Fetcher.java:544)
at
org.apache.kafka.clients.consumer.internals.Fetcher.fetchedRecords(Fetcher.java:505)
at
org.apache.kafka.clients.consumer.KafkaConsumer.pollForFetches(KafkaConsumer.java:1259)
at
org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1187)
at
org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1115)
at
org.apache.kylin.source.kafka.hadoop.KafkaInputRecordReader.nextKeyValue(KafkaInputRecordReader.java:119)
at
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556)
at
org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
at
org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145) at
org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787) at
org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at
org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at
java.security.AccessController.doPrivileged(Native Method) at
javax.security.auth.Subject.doAs(Subject.java:422) at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by:
org.apache.kafka.common.KafkaException: java.lang.NoClassDefFoundError:
net/jpountz/lz4/LZ4Exception at
org.apache.kafka.common.record.CompressionType$4.wrapForInput(CompressionType.java:113)
at
org.apache.kafka.common.record.AbstractLegacyRecordBatch$DeepRecordsIterator.<init>(AbstractLegacyRecordBatch.java:330)
at
org.apache.kafka.common.record.AbstractLegacyRecordBatch$DeepRecordsIterator.<init>(AbstractLegacyRecordBatch.java:310)
at
org.apache.kafka.common.record.AbstractLegacyRecordBatch.iterator(AbstractLegacyRecordBatch.java:232)
at
org.apache.kafka.common.record.AbstractLegacyRecordBatch.streamingIterator(AbstractLegacyRecordBatch.java:263)
at
org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.nextFetchedRecord(Fetcher.java:1144)
at
org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.fetchRecords(Fetcher.java:1181)
... 18 more Caused by: java.lang.NoClassDefFoundError:
net/jpountz/lz4/LZ4Exception at
org.apache.kafka.common.record.CompressionType$4.wrapForInput(CompressionType.java:110)
... 24 more Caused by: java.lang.ClassNotFoundException:
net.jpountz.lz4.LZ4Exception at
java.net.URLClassLoader.findClass(URLClassLoader.java:381) at
java.lang.ClassLoader.loadClass(ClassLoader.java:424) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
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