[DRILL-5410] Unicode characters in JSON data result in DATA_READ error.

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.11.0
• Component/s: Storage - JSON
• Assignee: Unassigned
• Reporter: Khurram Faraaz
• Created: 04/Apr/17 05:45
• Updated: 04/Apr/17 05:45

Description

Unicode characters in JSON data result in DATA_READ error.

Apache Drill 1.11.0 commit ID : adbf363

Data used in test.
[root@centos-01 ~]# cat test.json
"arr":[{u'\ue4ea\ue4ba': 5.167460680922489e+18}]

apache drill 1.11.0-SNAPSHOT
"a drill in the hand is better than two in the bush"
0: jdbc:drill:schema=dfs.tmp> alter session set `store.json.all_text_mode`=true;
+-------+------------------------------------+
|  ok   |              summary               |
+-------+------------------------------------+
| true  | store.json.all_text_mode updated.  |
+-------+------------------------------------+
1 row selected (0.156 seconds)

0: jdbc:drill:schema=dfs.tmp> select * from `test.json`;
Error: DATA_READ ERROR: Failure while parsing JSON.  Found token of [VALUE_STRING].  Drill currently only supports parsing json strings that contain either lists or maps.  The root object cannot be a scalar.

Line  1
Column  3
Field  <none>
Fragment 0:0

[Error Id: 535e08fb-89b0-443b-86dc-032e40bbb4e1 on centos-01.qa.lab:31010] (state=,code=0)

2017-04-03 09:42:45,845 [271de6e9-e9f3-51bc-7091-1a2df15f12a7:foreman] INFO  o.a.drill.exec.work.foreman.Foreman - Query text for query id 271de6e9-e9f3-51bc-7091-1a2df15f12a7: select * from `test.json`
...
2017-04-03 09:42:45,935 [271de6e9-e9f3-51bc-7091-1a2df15f12a7:frag:0:0] INFO  o.a.d.e.vector.complex.fn.JsonReader - User Error Occurred: Failure while parsing JSON.  Found token of [VALUE_STRING].  Drill currently only supports parsing json strings that contain either lists or maps.  The root object cannot be a scalar.
org.apache.drill.common.exceptions.UserException: DATA_READ ERROR: Failure while parsing JSON.  Found token of [VALUE_STRING].  Drill currently only supports parsing json strings that contain either lists or maps.  The root object cannot be a scalar.

Line  1
Column  3
Field  <none>

[Error Id: 535e08fb-89b0-443b-86dc-032e40bbb4e1 ]
        at org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:544) ~[drill-common-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.vector.complex.fn.JsonReader.writeToVector(JsonReader.java:305) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.vector.complex.fn.JsonReader.write(JsonReader.java:217) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.store.easy.json.JSONRecordReader.next(JSONRecordReader.java:206) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.ScanBatch.next(ScanBatch.java:179) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:135) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:104) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:81) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:94) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:232) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:226) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91]
        at javax.security.auth.Subject.doAs(Subject.java:422) [na:1.8.0_91]
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1595) [hadoop-common-2.7.0-mapr-1607.jar:na]
        at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:226) [drill-java-exec-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38) [drill-common-1.11.0-SNAPSHOT.jar:1.11.0-SNAPSHOT]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]