Thanks Venkat for the inputs. I just tried HCat import and got errors...
sqoop import \
-Doraoop.disabled=true \
--connect jdbc:oracle:thin:@XXXXXXX:1521/YYYYYY \
--table ENS.CUSTOMER \
--hcatalog-table CUSTOMER \
--username myid \
--password mypwd
14/08/19 11:57:33 INFO mapreduce.Job: Running job: job_1405966899667_0869
14/08/19 11:57:53 INFO mapreduce.Job: Job job_1405966899667_0869 running in
uber mode : false
14/08/19 11:57:53 INFO mapreduce.Job: map 0% reduce 0%
14/08/19 11:57:53 INFO mapreduce.Job: Job job_1405966899667_0869 failed with
state FAILED due to: Application application_1405966899667_0869 failed 2 times
due to AM Container for appattempt_1405966899667_0869_000002 exited with
exitCode: 1 due to: Exception from container-launch:
org.apache.hadoop.util.Shell$ExitCodeException:
org.apache.hadoop.util.Shell$ExitCodeException:
at org.apache.hadoop.util.Shell.runCommand(Shell.java:505)
at org.apache.hadoop.util.Shell.run(Shell.java:418)
at
org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:650)
at
org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:195)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:300)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:81)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Can you please send me the syntax for importing Oracle partitions to Hive
partitions? Also, Can I use Oraoop?
Regards,
Venkat
-----Original Message-----
From: Venkat Ranganathan [mailto:[email protected]]
Sent: Tuesday, August 19, 2014 10:45 AM
To: [email protected]
Subject: Re: Import Partitions from Oracle to Hive Partitions
What is the partitioning key in your Oracle table? If you specify
the same as partitioning keys on the hive table, then doing a simple hcatalog
import from the oracle table to hive will automatically handle all the
partitioning (even multiple level).
You are right that Sqoop supported only one level of partitioning key but with
1.4.5 we allowed nesting (multiple static partition keys).
Multiple dynamic partition keys were supported with hcatalog from
1.4.4
Thanks
Venkat
On Tue, Aug 19, 2014 at 8:30 AM, Venkat, Ankam <[email protected]>
wrote:
> David/Gwen,
>
> I have an issue with importing Oracle partitions to match Hadoop Files.
>
> Sqoop command:
>
> sqoop import \
> -Doraoop.disabled=false \
> -Doraoop.import.partitions='CUSTOMER_P01,CUSTOMER_P02,CUSTOMER_P03,CUS
> TOMER_P04,CUSTOMER_P05,CUSTOMER_P06,CUSTOMER_P07,CUSTOMER_P08,CUSTOMER
> _P09,CUSTOMER_P10,CUSTOMER_P11,CUSTOMER_P12,CUSTOMER_P13,CUSTOMER_P14,
> CUSTOMER_P15,CUSTOMER_P16,CUSTOMER_P17,CUSTOMER_P18,CUSTOMER_P19,CUSTO
> MER_P20,CUSTOMER_P21,CUSTOMER_P22,CUSTOMER_P23,CUSTOMER_P24,CUSTOMER_P
> 25,CUSTOMER_P26,CUSTOMER_P27,CUSTOMER_P28,CUSTOMER_P29,CUSTOMER_P30,CU
> STOMER_P31,CUSTOMER_P32,CUSTOMER_P33,CUSTOMER_P34,CUSTOMER_P35,CUSTOME
> R_P36,CUSTOMER_P37,CUSTOMER_P38,CUSTOMER_P39,CUSTOMER_P40,CUSTOMER_P41
> ,CUSTOMER_P42,CUSTOMER_P43,CUSTOMER_P44,CUSTOMER_P45,CUSTOMER_P46,CUST
> OMER_P47,CUSTOMER_P48,CUSTOMER_P49,CUSTOMER_P50,CUSTOMER_P51,CUSTOMER_
> P52,CUSTOMER_P53,CUSTOMER_P54,CUSTOMER_P55,CUSTOMER_P56,CUSTOMER_P57,C
> USTOMER_P58,CUSTOMER_P59,CUSTOMER_P60,CUSTOMER_P61,CUSTOMER_P62,CUSTOM
> ER_P63,CUSTOMER_P64,CUSTOMER_P65,CUSTOMER_P66,CUSTOMER_P67,CUSTOMER_P6
> 8,CUSTOMER_P69,CUSTOMER_P70,CUSTOMER_P71,CUSTOMER_P72,CUSTOMER_P73,CUS
> TOMER_P74,CUSTOMER_P75' \ -Doraoop.chunk.method=PARTITION \
> -Doraoop.import.consistent.read=true \ --connect
> jdbc:oracle:thin:@XXXXXXXXXX:1521/YYYYYY \ --table Schema.TableName \
> --username MyID \ --password MyPWD \ -m 75
>
> Issues:
> 1) There are 75 partitions on Oracle Table. But, 61 are being imported
> because 14 partitions are empty. I have no way to identify the file belongs
> to which partition.
> 2) All the partitions are imported with names as PART-00001, PART-00002 and
> so on. I thought -Doraoop.chunk.method=PARTITION option will match the
> hadoop files to Oracle Partions. I mean import as HDFS files with same name.
>
> Any workaround for this?
>
> Regards,
> Venkat
>
>
> -----Original Message-----
> From: David Robson [mailto:[email protected]]
> Sent: Tuesday, August 05, 2014 6:08 PM
> To: [email protected]
> Subject: RE: Import Partitions from Oracle to Hive Partitions
>
> Yes now that you mention Sqoop is limited to one partition in Hive I do
> remember that! I would think we could modify Sqoop to create subfolders for
> each partition - instead of how it now creates a separate file for each
> partition? This would probably be limited to the direct (OraOop) connector as
> it is aware of partitions (existing connector doesn't read data dictionary
> directly).
>
> In the meantime Venkat - you could look at the option I mentioned - then
> manually move the files into separate folders - at least you'll have each
> partition in a separate file rather than spread throughout all files. The
> other thing you could look at is the option below - you could run one Sqoop
> job per partition:
>
> Specify The Partitions To Import
>
> -Doraoop.import.partitions=PartitionA,PartitionB --table
> OracleTableName
>
> Imports PartitionA and PartitionB of OracleTableName.
>
> Notes:
> You can enclose an individual partition name in double quotes to retain the
> letter case or if the name has special characters.
> -Doraoop.import.partitions='"PartitionA",PartitionB' --table OracleTableName
> If the partition name is not double quoted then its name will be
> automatically converted to upper case, PARTITIONB for above.
> When using double quotes the entire list of partition names must be enclosed
> in single quotes.
> If the last partition name in the list is double quoted then there
> must be a comma at the end of the list.
> -Doraoop.import.partitions='"PartitionA","PartitionB",' --table
> OracleTableName
>
> Name each partition to be included. There is no facility to provide a range
> of partition names.
>
> There is no facility to define sub partitions. The entire partition is
> included/excluded as per the filter.
>
>
> -----Original Message-----
> From: Gwen Shapira [mailto:[email protected]]
> Sent: Wednesday, 6 August 2014 8:44 AM
> To: [email protected]
> Subject: Re: Import Partitions from Oracle to Hive Partitions
>
> Hive expects a directory for each partition, so getting data with OraOop will
> require some post-processing - copy files into properly named directories and
> adding the new partitions to a hive table.
>
> Sqoop has the --hive-partition-key and --hive-partition-value, but this
> assumes that all the data sqooped will fit into a single partition.
>
>
> On Tue, Aug 5, 2014 at 3:40 PM, David Robson <[email protected]>
> wrote:
>> Hi Venkat,
>>
>>
>>
>> I’m not sure what this will do in regards to Hive partitions – I’ll
>> test it out when I get into the office and get back to you. But this
>> option will make it so there is one file for each Oracle partition –
>> which might be of interest to you.
>>
>>
>>
>> Match Hadoop Files to Oracle Table Partitions
>>
>>
>>
>> -Doraoop.chunk.method={ROWID|PARTITION}
>>
>>
>>
>> To import data from a partitioned table in such a way that the
>> resulting HDFS folder structure in
>>
>> Hadoop will match the table’s partitions, set the chunk method to PARTITION.
>> The alternative
>>
>> (default) chunk method is ROWID.
>>
>>
>>
>> Notes:
>>
>> l For the number of Hadoop files to match the number of Oracle
>> partitions, set the number
>>
>> of mappers to be greater than or equal to the number of partitions.
>>
>> l If the table is not partitioned then value PARTITION will lead to
>> an error.
>>
>>
>>
>> David
>>
>>
>>
>>
>>
>> From: Venkat, Ankam [mailto:[email protected]]
>> Sent: Wednesday, 6 August 2014 3:56 AM
>> To: '[email protected]'
>> Subject: Import Partitions from Oracle to Hive Partitions
>>
>>
>>
>> I am trying to import partitions from Oracle table to Hive partitions.
>>
>>
>>
>> Can somebody provide the syntax using regular JDBC connector and
>> Oraoop connector?
>>
>>
>>
>> Thanks in advance.
>>
>>
>>
>> Regards,
>>
>> Venkat
>>
>>
>>
>>
--
CONFIDENTIALITY NOTICE
NOTICE: This message is intended for the use of the individual or entity to
which it is addressed and may contain information that is confidential,
privileged and exempt from disclosure under applicable law. If the reader of
this message is not the intended recipient, you are hereby notified that any
printing, copying, dissemination, distribution, disclosure or forwarding of
this communication is strictly prohibited. If you have received this
communication in error, please contact the sender immediately and delete it
from your system. Thank You.
