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Xingxing Di commented on KYLIN-3059: ------------------------------------ I am using v1.6.0, is there any risk to upgrade to v2.2 ? There are a lot of cubes, is there a way to rollback safely ? > Query got IllegalArgumentException > ---------------------------------- > > Key: KYLIN-3059 > URL: https://issues.apache.org/jira/browse/KYLIN-3059 > Project: Kylin > Issue Type: Bug > Components: Query Engine > Affects Versions: v1.6.0 > Environment: apache-kylin-1.6.0-hbase1.x > apache hadoop 2.7.2 > hbase-1.2.4 > Reporter: Xingxing Di > Assignee: liyang > Attachments: query.log > > > A query got an exception , the error trace was : > {code:java} > Caused by: java.lang.IllegalArgumentException > at > com.google.common.base.Preconditions.checkArgument(Preconditions.java:76) > at > org.apache.kylin.metadata.model.TblColRef.<init>(TblColRef.java:105) > at > org.apache.kylin.metadata.model.TblColRef.columnForUnknownModel(TblColRef.java:74) > at > org.apache.kylin.query.relnode.OLAPTableScan.buildColumnRowType(OLAPTableScan.java:231) > {code} > the code is : > {code:java} > TblColRef(TableRef table, ColumnDesc column) { > checkArgument(table.getTableDesc() == column.getTable()); // this > line cause exception > this.table = table; > this.column = column; > } > {code} > and after we did "Reload metadata", query executed successful. > I dont know what will cause this exception, i think it may related to > ProjectL2Cache or ProjectManager. -- This message was sent by Atlassian JIRA (v6.4.14#64029)