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Error while creating hive table on top of json data

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Error while creating hive table on top of json data

New Contributor

Hi ,

I am trying to create a hive table on top of son data file but getting the below error.Below are my json file,hive ddl and error.

Json file::::::::

{ "purchaseid": { "ticketnumber": "23546852222", "location": "vizag", "Travelerhistory": { "trav": { "fname": "ramu", "lname": "gogi", "travelingarea": { "destination": { "stationid": "KAJKL", "stationname": "hyd" } }, "food": { "foodpref": [{ "foodcode": "CK567", "foodcodeSegment": "NOVEG" }, { "foodcode": "MM98", "foodcodeSegment": "VEG" } ] } } } } }

Hive DDL::

add jar /home/**********/json-serde-1.3.7-jar-with-dependencies.jar; CREATE external TABLE ds1414( ticketnumber string, location string, Travelerhistory ARRAY<struct<trav :struct<fname:string,lname:string, travelingarea :ARRAY<struct<destination :struct<stationid:string,stationname:string>>>, food :ARRAY<struct<foodpref :struct<foodcode:string,foodcodeSegment:string>>> >>> ) ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe' location '/user/***********/json2/' ;

Error:::

select * from ds1414;

OK

Failed with exception java.io.IOException:org.apache.hadoop.hive.serde2.SerDeException: org.codehaus.jackson.JsonParseException: Unexpected end-of-input: expected close marker for OBJECT (from [Source: java.io.ByteArrayInputStream@205df5dc; line: 1, column: 0]) at [Source: java.io.ByteArrayInputStream@205df5dc; line: 1, column: 3] Time taken: 0.212 seconds

8 REPLIES 8

Re: Error while creating hive table on top of json data

Super Guru

@srini

Try with the below create table statement

hive> Create table ds1414(
purchaseid struct<ticketnumber:string,location:string,
  Travelerhistory:struct<
    trav:struct<fname:string,lname:string,
        travelingarea:struct< destination :struct<stationid:string,stationname:string>>,
    food :struct<foodpref:array<struct<foodcode:string,foodcodeSegment:string>>>
    >
  >
>)
ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe' location '/user/***********/json2/';

Examples of Accessing data from hive table as follows

hive> select * from ds1414;
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
|                                                                                                                                            ds1414.purchaseid                                                                                                                                             |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
| {"ticketnumber":"23546852222","location":"vizag","travelerhistory":{"trav":{"fname":"ramu","lname":"gogi","travelingarea":{"destination":{"stationid":"KAJKL","stationname":"hyd"}},"food":{"foodpref":[{"foodcode":"CK567","foodcodesegment":"NOVEG"},{"foodcode":"MM98","foodcodesegment":"VEG"}]}}}}  |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
hive> select purchaseid.ticketnumber from ds1414;
+---------------+--+
| ticketnumber  |
+---------------+--+
| 23546852222   |
+---------------+--+
hive> select ds1414.purchaseid.ticketnumber,purchaseid.location from ds1414;
+---------------+-----------+--+
| ticketnumber  | location  |
+---------------+-----------+--+
| 23546852222   | vizag     |
+---------------+-----------+--+
hive>  select purchaseid.Travelerhistory.trav.food.foodpref from ds1414;
+-----------------------------------------------------------------------------------------------+--+
|                                           foodpref                                            |
+-----------------------------------------------------------------------------------------------+--+
| [{"foodcode":"CK567","foodcodesegment":"NOVEG"},{"foodcode":"MM98","foodcodesegment":"VEG"}]  |
+-----------------------------------------------------------------------------------------------+--+
hive> select purchaseid.Travelerhistory.trav.food.foodpref.foodcode from ds1414;
+-------------------+--+
|     foodcode      |
+-------------------+--+
| ["CK567","MM98"]  |
+-------------------+--+
hive> select purchaseid.Travelerhistory.trav.food.foodpref.foodcode[0] from ds1414;
+--------+--+
|  _c0   |
+--------+--+
| CK567  |
+--------+--+

Let us know if you are having any questions..

Re: Error while creating hive table on top of json data

Super Guru

@srini

Could you make sure you are having valid json message in "/user/***********/json2/" this path and keep all the json message in one line(no new line)

(or)

just create a new file in your local and then put that file into your hadoop directory

bash$ vi sample_json.txt //create a new file with the below sample message in it.<br>{ "purchaseid": { "ticketnumber": "23546852222", "location": "vizag", "Travelerhistory": { "trav": { "fname": "ramu", "lname": "gogi", "travelingarea": { "destination": { "stationid": "KAJKL", "stationname": "hyd" } }, "food": { "foodpref": [{ "foodcode": "CK567", "foodcodeSegment": "NOVEG" }, { "foodcode": "MM98", "foodcodeSegment": "VEG" } ] } } } } }
bash$ hadoop fs -rm -r /user/***********/json2/ //for testing purposes we are deleting all the files in the dirbash$ hadoop fs -put -f sample_json.txt /user/***********/json2/ //put the newly created file into the hdfs dir

-

if you are still having issue attach screenshot of your input data in /user/***********/json2/ this path.

Re: Error while creating hive table on top of json data

Super Guru
@srini

Please use the below DDL

Create EXTERNAL TABLE SRGMSBI1417.json14_07_05_01( 
purchaseid struct
<ticid:string,ticlocation:string,custnum :string, 
Travleinfo:struct
<Trav:struct
<fname:string,mname:string,
freq:struct
<fre:struct
<frequencynumber:string,frequnecystatus:string>>, 
food :struct
<foodpref:array<struct<foodcode:string,foodcodeSegment:string>>>, 
Seats :struct<Seat:array<struct<seatberth:string,loc:string>>>, stations :struct<station:array<struct<sationname:string,trainnum:string>>>>>, 
Comments :struct<Comment:array<struct<commentno:string,desc:string,passengerseat :struct<intele :string>,passengerloc :struct<intele :string>>>>>) 
ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe'
location '/user/srgmsbi1417/json14_07_05_01';

i have tested some columns

hive> select purchaseid.ticid from default.json limit 10;
+--------+--+
| ticid  |
+--------+--+
| 1496   |
+--------+--+
hive> select purchaseid.Comments.comment.commentno from default.json limit 10;
+-----------------+--+
|    commentno    |
+-----------------+--+
| ["1","5","12"]  |
+-----------------+--+
hive> select purchaseid.Comments.comment[0].commentno from default.json limit 10;
+------------+--+
| commentno  |
+------------+--+
| 1          |
+------------+--+

**tip: use some sort of json formatter while creating ddl for so that we can understand easily where to end the struct or array.

-

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Re: Error while creating hive table on top of json data

Super Guru
@srini

use this ddl

Create EXTERNAL TABLE SRGMSBI1417.json14_07_05_01( 
purchaseid struct
<ticid:string,ticlocation:string,custnum :string, 
Travleinfo:struct
<Trav:struct
<fname:string,lname:string,mname:string,
freq:struct
<fre:struct
<frequencynumber:string,frequnecystatus:string>>, 
food :struct
<foodpref:array<struct<foodcode:string,foodcodeSegment:string>>>, 
Seats :struct<Seat:array<struct<seatberth:string,loc:string>>>, stations :struct<station:array<struct<sationname:string,trainnum:string>>>>>, 
Comments :struct<Comment:array<struct<commentno:string,desc:string,passengerseat :struct<intele :string>,passengerloc :struct<intele :string>>>>>) 
ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe'
location '/user/srgmsbi1417/json14_07_05_01';

And don't keep array type for fre because it's struct not the array, that's the reason why you are getting exceptions.

Re: Error while creating hive table on top of json data

New Contributor

hi @Shu

still i am getting the same error,please find the attachment of errorerror.png

Re: Error while creating hive table on top of json data

New Contributor

@Shu

Thanks for the help.

i have json file as below format , i am creating ddl which works well,but when i do a select query it throwing error.

json file:::

{"purchaseid": {"ticid": "1496","ticlocation": "vizag","custnum": "222","Travleinfo": {"Trav": {"fname": "ramu","mname": "g","freq": {"fre": {"frequencynumber": "9","frequnecystatus": "na"}},"food": {"foodpref": [{"foodcode": "9","foodcodeSegment": "chic"},{"foodcode": "22","foodcodeSegment": "veg"},{"foodcode": "36","foodcodeSegment": "idl"}] },"Seats": { "Seat": [{"seatberth": "upper","loc": "s15"},{"seatberth": "lower","loc": "s215"},{"seatberth": "upper","loc": "s3"}] },"stations": { "station": [{"sationname": "vizag","trainnum": "c197"},{"sationname": "hyd","trainnum": "hyd187"},{"sationname": "wrgl","trainnum": "wr1822"}]}}},"Comments": {"comment": [{"commentno": "1","desc": "journey","passengerseat": { "intele": "09" },"passengerloc": { "intele": "s15" }},{"commentno": "5","desc": " food","passengerseat": { "intele": "09" },"passengerloc": { "intele": "s15" }},{"commentno": "12","desc": " service","passengerseat": { "intele": "09" },"passengerloc": { "intele": "s15" } }]}}}

DDL:::

Create EXTERNAL TABLE SRGMSBI1417.json14_07_05_01( purchaseid struct<ticid:string,ticlocation:string,custnum :string, Travleinfo:struct< trav:struct<fname:string,lname:string,mname:string, freq :struct<fre:array<struct<frequencynumber:string,frequnecystatus:string>>>, food :struct<foodpref:array<struct<foodcode:string,foodcodeSegment:string>>>, Seats :struct<Seat:array<struct<seatberth:string,loc:string>>>, stations :struct<station:array<struct<sationname:string,trainnum:string>>> >>, Comments :struct<Comment:array<struct<commentno:string,desc:string,passengerseat :struct<intele :string>,passengerloc :struct<intele :string> >>> > ) ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe' location '/user/srgmsbi1417/json14_07_05_01';

error:::

Failed with exception java.io.IOException:org.apache.hadoop.hive.serde2.SerDeException: java.io.IOException: Start of Array

Re: Error while creating hive table on top of json data

New Contributor

Hi @Shu

Thanks for the help.

i have json file as below format , i am creating ddl which works well,but when i do a select query it throwing error.

json file:::

{"purchaseid": {"ticid": "1496","ticlocation": "vizag","custnum": "222","Travleinfo": {"Trav": {"fname": "ramu","mname": "g","freq": {"fre": {"frequencynumber": "9","frequnecystatus": "na"}},"food": {"foodpref": [{"foodcode": "9","foodcodeSegment": "chic"},{"foodcode": "22","foodcodeSegment": "veg"},{"foodcode": "36","foodcodeSegment": "idl"}] },"Seats": { "Seat": [{"seatberth": "upper","loc": "s15"},{"seatberth": "lower","loc": "s215"},{"seatberth": "upper","loc": "s3"}] },"stations": { "station": [{"sationname": "vizag","trainnum": "c197"},{"sationname": "hyd","trainnum": "hyd187"},{"sationname": "wrgl","trainnum": "wr1822"}]}}},"Comments": {"comment": [{"commentno": "1","desc": "journey","passengerseat": { "intele": "09" },"passengerloc": { "intele": "s15" }},{"commentno": "5","desc": " food","passengerseat": { "intele": "09" },"passengerloc": { "intele": "s15" }},{"commentno": "12","desc": " service","passengerseat": { "intele": "09" },"passengerloc": { "intele": "s15" } }]}}}

DDL:::

Create EXTERNAL TABLE SRGMSBI1417.json14_07_05_01( purchaseid struct<ticid:string,ticlocation:string,custnum :string, Travleinfo:struct< trav:struct<fname:string,lname:string,mname:string, freq :struct<fre:array<struct<frequencynumber:string,frequnecystatus:string>>>, food :struct<foodpref:array<struct<foodcode:string,foodcodeSegment:string>>>, Seats :struct<Seat:array<struct<seatberth:string,loc:string>>>, stations :struct<station:array<struct<sationname:string,trainnum:string>>> >>, Comments :struct<Comment:array<struct<commentno:string,desc:string,passengerseat :struct<intele :string>,passengerloc :struct<intele :string> >>> > ) ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe' location '/user/srgmsbi1417/json14_07_05_01';

error:::

Failed with exception java.io.IOException:org.apache.hadoop.hive.serde2.SerDeException: java.io.IOException: Start of Array

Re: Error while creating hive table on top of json data

New Contributor

i have this type of data anyone plzz help me to define the schema in hive

{
"md5": "bcgjcjdshhdfhkfd",
"dat": "15/08/2000",
"data": '[{"job_id":"589d0147aac2ed8665ce94d6","environment_id":100,"environment_description":"Windows732bit","size":109056,"type":"PE32executable(GUI)Intel80386, forMSWindows","type_short":["peexe"],"target_url":null,"state":"SUCCESS","error_type":null,"error_origin":null,"submit_name":"svchost.exe","md5":"7657fcb7d772448a6d8504e4b20168b8","sha1":"84c7201f7e59cb416280fd69a2e7f2e349ec8242","sha256":"54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71","sha512":"786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2","ssdeep":"1536: xfZZnAEjEIZvumULmj4wrraK5dZ4Ltta9Km\/ec3DtAL6bmZ4bXSjrAE+fySPoqRr: xnnAQVG\/LytaKItS\/fiLKS+f5Aq7is","imphash":"093a51e0b7dcb2466b7edfd78d191aa0","av_detect":91,"vx_family":"Gen: Variant.Kazy","url_analysis":false,"analysis_start_time":"2017-02-10T00: 54: 57-06: 00","threat_score":100,"interesting":false,"threat_level":2,"verdict":"malicious","certificates":[],"domains":["stromoliks.com","promoliks.com"],"classification_tags":[],"compromised_hosts":[],"hosts":[],"total_network_connections":0,"total_processes":2,"total_signatures":37,"extracted_files":[],"processes":[],"file_metadata":null,"tags":[],"mitre_attcks":[]}]'
}

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