Hi, 林琰文.
You should add native dependencies. Hope this can help you. https://stackoverflow.com/questions/22150417/hadoop-mapreduce-java-lang-unsatisfiedlinkerror-org-apache-hadoop-util-nativec. 发送自 Windows 10 版邮件<https://go.microsoft.com/fwlink/?LinkId=550986>应用 ________________________________ 发件人: 林琰文 <lyw1124278...@gmail.com> 发送时间: Tuesday, March 19, 2019 1:04:51 AM 收件人: dev@kylin.apache.org 主题: Build buildSupportsSnappy Error When Doing Integration Testing Hi all, I am currently running integration test. However, I met the following error. Could you please share some suggestions on this? *1. Command*: mvn verify -fae -Dhdp.version=3.0.1.0-187 -P sandbox *2. Error message from Yarn Container Attempt:* 2019-03-18 16:43:25,583 INFO [main] org.apache.kylin.engine.mr.KylinMapper: Accepting Mapper Key with ordinal: 1 2019-03-18 16:43:25,583 INFO [main] org.apache.kylin.engine.mr.KylinMapper: Do map, available memory: 322m 2019-03-18 16:43:25,596 INFO [main] org.apache.kylin.common.KylinConfig: Creating new manager instance of class org.apache.kylin.cube.cuboid.CuboidManager 2019-03-18 16:43:25,599 INFO [main] org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter: File Output Committer Algorithm version is 1 2019-03-18 16:43:25,599 INFO [main] org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter: FileOutputCommitter skip cleanup _temporary folders under output directory:false, ignore cleanup failures: false 2019-03-18 16:43:25,795 ERROR [main] org.apache.kylin.engine.mr.KylinMapper: java.lang.UnsatisfiedLinkError: org.apache.hadoop.util.NativeCodeLoader.buildSupportsSnappy()Z at org.apache.hadoop.util.NativeCodeLoader.buildSupportsSnappy(Native Method) at org.apache.hadoop.io.compress.SnappyCodec.checkNativeCodeLoaded(SnappyCodec.java:63 ) at org.apache.hadoop.io.compress.SnappyCodec.getCompressorType(SnappyCodec.java:136 ) at org.apache.hadoop.io.compress.CodecPool.getCompressor(CodecPool.java:150 ) at org.apache.hadoop.io.compress.CodecPool.getCompressor(CodecPool.java:168 ) at org.apache.hadoop.io.SequenceFile$Writer.init(SequenceFile.java:1304) at org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:1192) at org.apache.hadoop.io.SequenceFile$BlockCompressWriter .<init>(SequenceFile.java:1552) at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:289) at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:542) at org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat.getSequenceWriter(SequenceFileOutputFormat.java:64) at org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat.getRecordWriter(SequenceFileOutputFormat.java:75) at org.apache.hadoop.mapreduce.lib.output.LazyOutputFormat$LazyRecordWriter.write(LazyOutputFormat.java:113) at org.apache.hadoop.mapreduce.lib.output.MultipleOutputs.write(MultipleOutputs.java:468) at org.apache.kylin.engine.mr.steps.FilterRecommendCuboidDataMapper.doMap(FilterRecommendCuboidDataMapper.java:85 ) at org.apache.kylin.engine.mr.steps.FilterRecommendCuboidDataMapper.doMap(FilterRecommendCuboidDataMapper.java:44 ) at org.apache.kylin.engine.mr.KylinMapper.map(KylinMapper.java:77) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:799) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168) 2019-03-18 16:43:25,797 INFO [main] org.apache.kylin.engine.mr.KylinMapper: Do cleanup, available memory: 318m 2019-03-18 16:43:25,813 INFO [main] org.apache.kylin.engine.mr.KylinMapper: Total rows: 1 2019-03-18 16:43:25,813 ERROR [main] org.apache.hadoop.mapred.YarnChild: Error running child : java.lang.UnsatisfiedLinkError: org.apache.hadoop.util.NativeCodeLoader.buildSupportsSnappy()Z at org.apache.hadoop.util.NativeCodeLoader.buildSupportsSnappy(Native Method) at org.apache.hadoop.io.compress.SnappyCodec.checkNativeCodeLoaded(SnappyCodec.java:63 ) at org.apache.hadoop.io.compress.SnappyCodec.getCompressorType(SnappyCodec.java:136 ) at org.apache.hadoop.io.compress.CodecPool.getCompressor(CodecPool.java:150 ) at org.apache.hadoop.io.compress.CodecPool.getCompressor(CodecPool.java:168 ) at org.apache.hadoop.io.SequenceFile$Writer.init(SequenceFile.java:1304) at org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:1192) at org.apache.hadoop.io.SequenceFile$BlockCompressWriter .<init>(SequenceFile.java:1552) at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:289) at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:542) at org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat.getSequenceWriter(SequenceFileOutputFormat.java:64) at org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat.getRecordWriter(SequenceFileOutputFormat.java:75) at org.apache.hadoop.mapreduce.lib.output.LazyOutputFormat$LazyRecordWriter.write(LazyOutputFormat.java:113) at org.apache.hadoop.mapreduce.lib.output.MultipleOutputs.write(MultipleOutputs.java:468) at org.apache.kylin.engine.mr.steps.FilterRecommendCuboidDataMapper.doMap(FilterRecommendCuboidDataMapper.java:85 ) at org.apache.kylin.engine.mr.steps.FilterRecommendCuboidDataMapper.doMap(FilterRecommendCuboidDataMapper.java:44 ) at org.apache.kylin.engine.mr.KylinMapper.map(KylinMapper.java:77) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:799) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174) 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:1730) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168) 2019-03-18 16:43:25,926 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping MapTask metrics system... 2019-03-18 16:43:25,927 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system stopped. 2019-03-18 16:43:25,927 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system shutdown complete. *3. What I have tried (but not work):* Have made sure the following files have the following property: 3.1 core-site.xml File: {kylin_root}/examples/test_case_data/sandbox/core-site.xml File: HDP HDFS core-site.xml (via Ambari Web UI) <property> <name>io.compression.codecs</name> <value> org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.SnappyCodec </value> </property> 3.2 mapred-site.xml File: {kylin_root}/examples/test_case_data/sandbox/mapred-site.xml File: HDP MapReduce2 mapred-site.xml (via Ambari Web UI) <property> <name>mapreduce.map.output.compress</name> <value>true</value> </ property> <property> <name>mapred.map.output.compress.codec</name> <value> org.apache.hadoop.io.compress.SnappyCodec</value> </property> <property> < name>mapreduce.admin.user.env</name> <value>LD_LIBRARY_PATH=/usr/hdp/ 3.0.1.0-187/hadoop/lib/native</value> </property> 3.3 libsnappy.so Have checked the file libsnappy.so is located at the /usr/hdp/3.0.1.0-187 /hadoop/lib/native Thanks! Best, Yanwen Lin
