Hi Yaqian： Thank you very much，I will try。
在 2019-10-10 16:07:30，"Yaqian Zhang" <[email protected]> 写道： Hi Johnson: You can set the parameters “kylin.metadata.hbase-rpc-timeout” to modify the timeout, the default value is 5000ms. 在 2019年10月10日，15:10，Johnson <[email protected]> 写道： kylin：2.6.2，HBase 1.2.0-cdh5.15.0 The error occurred in #3 Step Name: Extract Fact Table Distinct Columns error log： java.lang.RuntimeException: org.apache.kylin.job.exception.PersistentException: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=1, exceptions: Thu Oct 10 14:13:09 GMT+08:00 2019, RpcRetryingCaller{globalStartTime=1570687984759, pause=100, retries=1}, java.io.IOException: Call to tx-dn41.data/10.14.243.51:60020 failed on local exception: org.apache.hadoop.hbase.ipc.CallTimeoutException: Call id=22841735, waitTime=5001, operationTimeout=5000 expired. at org.apache.kylin.job.execution.ExecutableManager.getOutput(ExecutableManager.java:174) at org.apache.kylin.engine.mr.common.MapReduceExecutable.doWork(MapReduceExecutable.java:118) at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:167) Caused by: org.apache.kylin.job.exception.PersistentException: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=1, exceptions: Thu Oct 10 14:13:09 GMT+08:00 2019, RpcRetryingCaller{globalStartTime=1570687984759, pause=100, retries=1}, java.io.IOException: Call to tx-dn99.data/10.14.293.58:60020 failed on local exception:org.apache.hadoop.hbase.ipc.CallTimeoutException: Call id=22841735, waitTime=5001, operationTimeout=5000 expired. at org.apache.kylin.job.dao.ExecutableDao.getJobOutput(ExecutableDao.java:407) at org.apache.kylin.job.execution.ExecutableManager.getOutput(ExecutableManager.java:169) ... 8 more Then，I found that this hbase node was doing FULL GC at this moment，GC lasts a long time。Are there any parameters that can modify the timeout，org.apache.hadoop.hbase.ipc.CallTimeoutException: Call id=22841735, waitTime=5001。
