> On April 8, 2015, 11:20 p.m., Parth Chandra wrote: > > exec/java-exec/src/main/java/org/apache/drill/exec/store/easy/json/JSONRecordReader.java, > > line 94 > > <https://reviews.apache.org/r/32987/diff/1/?file=921076#file921076line94> > > > > It would help if we have a hierarchy of exception 'contexts' that we > > can use to build the message. For instance, in this code, JSONRecord reader > > will catch an exception thrown by JSONReader which in turn will have caught > > an exception thrown by SingleListWriter. The SingleListWriter has no idea > > of the file name, line number, etc that the erroneous data came from. > > JSONReader knows the line number and column but not the file name. > > JSONRecordReader knows the file name. If each level adds the information > > about the context, the DrillUserException created can construct a message > > that contains the error as well as the context (in this case the precise > > location) of where the error occurred.
DrillUserException exposes an addContext(String) that can be used to add more context to existing exceptions. One example of this being used is inside JsonRecordReader.handleAndRaise() - abdelhakim ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/32987/#review79447 ----------------------------------------------------------- On April 9, 2015, 5:42 p.m., abdelhakim deneche wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/32987/ > ----------------------------------------------------------- > > (Updated April 9, 2015, 5:42 p.m.) > > > Review request for drill, Jacques Nadeau, Jason Altekruse, and Parth Chandra. > > > Bugs: DRILL-2675 > https://issues.apache.org/jira/browse/DRILL-2675 > > > Repository: drill-git > > > Description > ------- > > **INITIAL PATCH** with a working solution. This patch cleans the path for > errors, especially user errors with meaningful messages, to be propagated > properly to the client. > > The patch includes changes to 2 existing use cases where the error message > was successfully improved. > > The general idea is: if a code wants to throw an exception that contains a > meaningful error message, it throws a DrillUserException. The propagation > code will make sure this exception is propagated to the client. The user > exception object doesn't contain the final error message, but enough > information about the error, the client will use this information to display > a better error message. > Any exception that is not a DrillUserException (or one of it's subclasses) > will be considered as a system exception. For those exceptions the client > will only display the error id and drillbit identity in case the user wants > to check the logs for more informations about the error. > Error objects sent to the client will still contain a stack trace that can be > used to display more information if the client has enabled the error verbose > mode. > > > Diffs > ----- > > > common/src/main/java/org/apache/drill/common/exceptions/DrillDataReadException.java > PRE-CREATION > > common/src/main/java/org/apache/drill/common/exceptions/DrillParseException.java > PRE-CREATION > > common/src/main/java/org/apache/drill/common/exceptions/DrillRemoteException.java > PRE-CREATION > > common/src/main/java/org/apache/drill/common/exceptions/DrillSystemException.java > PRE-CREATION > > common/src/main/java/org/apache/drill/common/exceptions/DrillUnsupportedOperationException.java > PRE-CREATION > > common/src/main/java/org/apache/drill/common/exceptions/DrillUserException.java > PRE-CREATION > common/src/main/java/org/apache/drill/common/exceptions/ErrorHelper.java > PRE-CREATION > exec/java-exec/src/main/java/org/apache/drill/exec/ops/FragmentContext.java > 18b93e9 > > exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/ScreenCreator.java > 8038527 > > exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/broadcastsender/BroadcastSenderRootExec.java > d17fdd4 > > exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/partitionsender/StatusHandler.java > 5e21878 > > exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/DrillSqlWorker.java > b98778d > > exec/java-exec/src/main/java/org/apache/drill/exec/rpc/CoordinationQueue.java > 0016d6a > > exec/java-exec/src/main/java/org/apache/drill/exec/rpc/RemoteRpcException.java > 14ea873 > exec/java-exec/src/main/java/org/apache/drill/exec/rpc/RpcBus.java b974963 > > exec/java-exec/src/main/java/org/apache/drill/exec/rpc/user/QueryResultHandler.java > a1be83b > > exec/java-exec/src/main/java/org/apache/drill/exec/store/easy/json/JSONRecordReader.java > cc7cb83 > exec/java-exec/src/main/java/org/apache/drill/exec/work/ErrorHelper.java > 0773d6c > > exec/java-exec/src/main/java/org/apache/drill/exec/work/foreman/Foreman.java > 23ef0d3 > > exec/java-exec/src/main/java/org/apache/drill/exec/work/foreman/QueryManager.java > 8626d5b > > exec/java-exec/src/main/java/org/apache/drill/exec/work/fragment/AbstractStatusReporter.java > 1b0885d > > exec/java-exec/src/main/java/org/apache/drill/exec/work/fragment/FragmentExecutor.java > a7e6c46 > > exec/java-exec/src/main/java/org/apache/drill/exec/work/fragment/StatusReporter.java > 26b5d68 > protocol/src/main/java/org/apache/drill/exec/proto/SchemaUserBitShared.java > f72d5e1 > protocol/src/main/java/org/apache/drill/exec/proto/UserBitShared.java > 9a9d196 > protocol/src/main/java/org/apache/drill/exec/proto/beans/DrillPBError.java > ac9cef5 > protocol/src/main/protobuf/UserBitShared.proto 5e44655 > > Diff: https://reviews.apache.org/r/32987/diff/ > > > Testing > ------- > > > Thanks, > > abdelhakim deneche > >
