Is `/usr/hdp/2.6.3.0-235/hadoop/client/xercesImpl.jar` a link to `
/usr/hdp/2.6.3.0-235/hadoop/client/xercesImpl-2.9.1.jar`?
On Mon, Jun 18, 2018 at 4:02 PM Garvit Sharma <garvit...@gmail.com> wrote:
> I don't think I can access core-default as it comes with Hadoop jar
>
> On Mon, 18 Jun 2018 at 7:30 PM, Till Rohrmann <trohrm...@apache.org>
> wrote:
>
>> Hmm, could you check whether core-default.xml contains any suspicious
>> entries? Apparently xerces:2.9.1 cannot read it.
>>
>> On Mon, Jun 18, 2018 at 3:40 PM Garvit Sharma <garvit...@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> After putting the following log in my code, I can see that the Xerces
>>> version is - Xerces version : Xerces-J 2.9.1
>>>
>>> log.info("Xerces version : {}",
>>> org.apache.xerces.impl.Version.getVersion());
>>>
>>> Also, following is the response of *$* *locate xerces* command on the
>>> server -
>>>
>>>
>>> /usr/hdp/2.6.1.0-129/falcon/client/lib/xercesImpl-2.10.0.jar
>>>
>>> /usr/hdp/2.6.1.0-129/hadoop/client/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/hadoop/client/xercesImpl.jar
>>>
>>> /usr/hdp/2.6.1.0-129/hadoop-hdfs/lib/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/hbase/lib/xercesImpl-2.9.1.jar
>>>
>>>
>>> /usr/hdp/2.6.1.0-129/hive-hcatalog/share/webhcat/svr/lib/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/livy/jars/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/livy2/jars/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/oozie/lib/xercesImpl-2.10.0.jar
>>>
>>> /usr/hdp/2.6.1.0-129/oozie/libserver/xercesImpl-2.10.0.jar
>>>
>>> /usr/hdp/2.6.1.0-129/oozie/libtools/xercesImpl-2.10.0.jar
>>>
>>> /usr/hdp/2.6.1.0-129/slider/lib/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/spark2/jars/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/storm/contrib/storm-autocreds/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.1.0-129/zookeeper/lib/xercesMinimal-1.9.6.2.jar
>>>
>>> /usr/hdp/2.6.3.0-235/falcon/client/lib/xercesImpl-2.10.0.jar
>>>
>>> /usr/hdp/2.6.3.0-235/hadoop/client/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/hadoop/client/xercesImpl.jar
>>>
>>> /usr/hdp/2.6.3.0-235/hadoop-hdfs/lib/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/hbase/lib/xercesImpl-2.9.1.jar
>>>
>>>
>>> /usr/hdp/2.6.3.0-235/hive-hcatalog/share/webhcat/svr/lib/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/livy/jars/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/livy2/jars/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/oozie/lib/xercesImpl-2.10.0.jar
>>>
>>> /usr/hdp/2.6.3.0-235/oozie/libserver/xercesImpl-2.10.0.jar
>>>
>>> /usr/hdp/2.6.3.0-235/oozie/libtools/xercesImpl-2.10.0.jar
>>>
>>>
>>> /usr/hdp/2.6.3.0-235/ranger-admin/ews/webapp/WEB-INF/lib/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/slider/lib/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/spark2/jars/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/storm/contrib/storm-autocreds/xercesImpl-2.9.1.jar
>>>
>>> /usr/hdp/2.6.3.0-235/zookeeper/lib/xercesMinimal-1.9.6.2.jar
>>>
>>> /usr/hdp/share/hst/hst-common/lib/xercesImpl-2.9.1.jar
>>>
>>> Now, I can say that the version of xerces are same.
>>>
>>>
>>> So, what is causing this issue if Xerces version is in sync?
>>>
>>>
>>> I am very excited to discover the issue :)
>>>
>>>
>>> Thanks,
>>>
>>> On Mon, Jun 18, 2018 at 6:27 PM Till Rohrmann <trohrm...@apache.org>
>>> wrote:
>>>
>>>> Could you check which xerces version you have on your classpath?
>>>> Apparently, it cannot read core-default.xml as Ted pointed out. This might
>>>> be the root cause for the failure.
>>>>
>>>> Cheers,
>>>> Till
>>>>
>>>> On Mon, Jun 18, 2018 at 1:31 PM Garvit Sharma <garvit...@gmail.com>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Sorry for the confusion, but the yarn is running on Hadoop version 2.7
>>>>> only and hence I am using Flink 1.5 Hadoop 2.7 binary.
>>>>>
>>>>> Below are the details provided by Yarn version command :
>>>>>
>>>>> Hadoop 2.7.3.2.6.3.0-235
>>>>> Subversion g...@github.com:hortonworks/hadoop.git -r
>>>>> 45bfd33bba8acadfa0e6024c80981c023b28d454
>>>>> Compiled by jenkins on 2017-10-30T02:31Z
>>>>> Compiled with protoc 2.5.0
>>>>> From source with checksum cd1a4a466ef450f547c279989f3aa3
>>>>> This command was run using
>>>>> /usr/hdp/2.6.3.0-235/hadoop/hadoop-common-2.7.3.2.6.3.0-235.jar
>>>>>
>>>>> Please let me know if you have found the resolution to my issue :)
>>>>>
>>>>> Thanks,
>>>>>
>>>>>
>>>>> On Mon, Jun 18, 2018 at 4:50 PM Till Rohrmann <trohrm...@apache.org>
>>>>> wrote:
>>>>>
>>>>>> Which Hadoop version have you installed? It looks as if Flink has
>>>>>> been build with Hadoop 2.7 but I see /usr/hdp/2.6.3.0-235 in the class
>>>>>> path. If you want to run Flink on Hadoop 2.6, then try to use the Hadoop
>>>>>> free Flink binaries or the one built for Hadoop 2.6.
>>>>>>
>>>>>> Cheers,
>>>>>> Till
>>>>>>
>>>>>> On Mon, Jun 18, 2018 at 10:48 AM Garvit Sharma <garvit...@gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Ok, I have attached the log file.
>>>>>>>
>>>>>>> Please check and let me know.
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> On Mon, Jun 18, 2018 at 2:07 PM Amit Jain <aj201...@gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hi Gravit,
>>>>>>>>
>>>>>>>> I think Till is interested to know about classpath details present
>>>>>>>> at the start of JM and TM logs e.g. following logs provide classpath
>>>>>>>> details used by TM in our case.
>>>>>>>>
>>>>>>>> 2018-06-17 19:01:30,656 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> --------------------------------------------------------------------------------
>>>>>>>> 2018-06-17 19:01:30,658 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> Starting
>>>>>>>> YARN TaskExecutor runner (Version: 1.5.0, Rev:c61b108, Date:24.05.2018
>>>>>>>> @
>>>>>>>> 14:54:44 UTC)
>>>>>>>> 2018-06-17 19:01:30,659 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner - OS
>>>>>>>> current user: yarn
>>>>>>>> 2018-06-17 19:01:31,662 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> Current
>>>>>>>> Hadoop/Kerberos user: hadoop
>>>>>>>> 2018-06-17 19:01:31,663 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner - JVM:
>>>>>>>> OpenJDK 64-Bit Server VM - Oracle Corporation - 1.8/25.171-b10
>>>>>>>> 2018-06-17 19:01:31,663 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> Maximum
>>>>>>>> heap size: 6647 MiBytes
>>>>>>>> 2018-06-17 19:01:31,663 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> JAVA_HOME: /usr/lib/jvm/java-openjdk
>>>>>>>> 2018-06-17 19:01:31,664 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> Hadoop
>>>>>>>> version: 2.8.3
>>>>>>>> 2018-06-17 19:01:31,664 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner - JVM
>>>>>>>> Options:
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> -Xms6936m
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> -Xmx6936m
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> -XX:MaxDirectMemorySize=4072m
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> -Dlog.file=/var/log/hadoop-yarn/containers/application_1528342246614_0002/container_1528342246614_0002_01_282649/taskmanager.log
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> -Dlogback.configurationFile=file:./logback.xml
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> -Dlog4j.configuration=file:./log4j.properties
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> Program
>>>>>>>> Arguments:
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> --configDir
>>>>>>>> 2018-06-17 19:01:31,665 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner - .
>>>>>>>> *2018-06-17 19:01:31,666 INFO
>>>>>>>> org.apache.flink.yarn.YarnTaskExecutorRunner -
>>>>>>>> Classpath:
>>>>>>>> lib/flink-dist_2.11-1.5.0.jar:lib/flink-python_2.11-1.5.0.jar:lib/flink-shaded-hadoop2-uber-1.5.0.jar:lib/flink-shaded-include-yarn-0.9.1.jar:lib/guava-18.0.jar:lib/log4j-1.2.17.jar:lib/slf4j-log4j12-1.7.7.jar:log4j.properties:logback.xml:flink.jar:flink-conf.yaml::/etc/hadoop/conf:/usr/lib/hadoop/hadoop-common-2.8.3-amzn-0.jar:/usr/lib/hadoop/hadoop-archive-logs.jar:/usr/lib/hadoop/hadoop-auth.jar:/usr/lib/hadoop/hadoop-archives-2.8.3-amzn-0.jar:/usr/lib/hadoop/hadoop-archive-logs-2.8.3-amzn-0.jar:/usr/lib/hadoop/hadoop-azure-datalake-2.8.3-amzn-0.jar.........*
>>>>>>>>
>>>>>>>> --
>>>>>>>> Thanks,
>>>>>>>> Amit
>>>>>>>>
>>>>>>>> On Mon, Jun 18, 2018 at 2:00 PM, Garvit Sharma <garvit...@gmail.com
>>>>>>>> > wrote:
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> Please refer to my previous mail for complete logs.
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>>
>>>>>>>>> On Mon, Jun 18, 2018 at 1:17 PM Till Rohrmann <
>>>>>>>>> trohrm...@apache.org> wrote:
>>>>>>>>>
>>>>>>>>>> Could you also please share the complete log file with us.
>>>>>>>>>>
>>>>>>>>>> Cheers,
>>>>>>>>>> Till
>>>>>>>>>>
>>>>>>>>>> On Sat, Jun 16, 2018 at 5:22 PM Ted Yu <yuzhih...@gmail.com>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> The error for core-default.xml is interesting.
>>>>>>>>>>>
>>>>>>>>>>> Flink doesn't have this file. Probably it came with Yarn. Please
>>>>>>>>>>> check the hadoop version Flink was built with versus the hadoop
>>>>>>>>>>> version in
>>>>>>>>>>> your cluster.
>>>>>>>>>>>
>>>>>>>>>>> Thanks
>>>>>>>>>>>
>>>>>>>>>>> -------- Original message --------
>>>>>>>>>>> From: Garvit Sharma <garvit...@gmail.com>
>>>>>>>>>>> Date: 6/16/18 7:23 AM (GMT-08:00)
>>>>>>>>>>> To: trohrm...@apache.org
>>>>>>>>>>> Cc: Chesnay Schepler <ches...@apache.org>, user@flink.apache.org
>>>>>>>>>>> Subject: Re: Exception while submitting jobs through Yarn
>>>>>>>>>>>
>>>>>>>>>>> I am not able to figure out, got stuck badly in this since last
>>>>>>>>>>> 1 week. Any little help would be appreciated.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,523 DEBUG
>>>>>>>>>>> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator
>>>>>>>>>>> - Parallelism set: 1 for 8
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,578 DEBUG
>>>>>>>>>>> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator
>>>>>>>>>>> - Parallelism set: 1 for 1
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,588 DEBUG
>>>>>>>>>>> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator
>>>>>>>>>>> - CONNECTED: KeyGroupStreamPartitioner - 1 -> 8
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,591 DEBUG
>>>>>>>>>>> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator
>>>>>>>>>>> - Parallelism set: 1 for 5
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,597 DEBUG
>>>>>>>>>>> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator
>>>>>>>>>>> - CONNECTED: KeyGroupStreamPartitioner - 5 -> 8
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,618 FATAL
>>>>>>>>>>> org.apache.hadoop.conf.Configuration -
>>>>>>>>>>> error parsing conf core-default.xml
>>>>>>>>>>>
>>>>>>>>>>> javax.xml.parsers.ParserConfigurationException: Feature '
>>>>>>>>>>> http://apache.org/xml/features/xinclude' is not recognized.
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown
>>>>>>>>>>> Source)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2482)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2444)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2361)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.conf.Configuration.get(Configuration.java:1188)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider.getRecordFactory(RecordFactoryProvider.java:49)
>>>>>>>>>>>
>>>>>>>>>>> at org.apache.hadoop.yarn.util.Records.<clinit>(Records.java:32)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.getQueueInfoRequest(YarnClientImpl.java:495)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.getAllQueues(YarnClientImpl.java:525)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.yarn.AbstractYarnClusterDescriptor.checkYarnQueues(AbstractYarnClusterDescriptor.java:658)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:486)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.yarn.YarnClusterDescriptor.deployJobCluster(YarnClusterDescriptor.java:75)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:235)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:210)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1020)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.lambda$main$9(CliFrontend.java:1096)
>>>>>>>>>>>
>>>>>>>>>>> at java.security.AccessController.doPrivileged(Native Method)
>>>>>>>>>>>
>>>>>>>>>>> at javax.security.auth.Subject.doAs(Subject.java:422)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1692)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1096)
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,620 WARN
>>>>>>>>>>> org.apache.flink.yarn.AbstractYarnClusterDescriptor
>>>>>>>>>>> - Error while getting queue information from YARN:
>>>>>>>>>>> null
>>>>>>>>>>>
>>>>>>>>>>> 2018-06-16 19:25:10,621 DEBUG
>>>>>>>>>>> org.apache.flink.yarn.AbstractYarnClusterDescriptor -
>>>>>>>>>>> Error details
>>>>>>>>>>>
>>>>>>>>>>> java.lang.ExceptionInInitializerError
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.getQueueInfoRequest(YarnClientImpl.java:495)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.getAllQueues(YarnClientImpl.java:525)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.yarn.AbstractYarnClusterDescriptor.checkYarnQueues(AbstractYarnClusterDescriptor.java:658)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:486)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.yarn.YarnClusterDescriptor.deployJobCluster(YarnClusterDescriptor.java:75)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:235)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:210)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1020)
>>>>>>>>>>>
>>>>>>>>>>> at
>>>>>>>>>>> org.apache.flink.client.cli.CliFrontend.lambda$main$9(CliFrontend.java:1096)
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>>> Garvit Sharma
>>>>>>>>> github.com/garvitlnmiit/
>>>>>>>>>
>>>>>>>>> No Body is a Scholar by birth, its only hard work and strong
>>>>>>>>> determination that makes him master.
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> Garvit Sharma
>>>>>>> github.com/garvitlnmiit/
>>>>>>>
>>>>>>> No Body is a Scholar by birth, its only hard work and strong
>>>>>>> determination that makes him master.
>>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Garvit Sharma
>>>>> github.com/garvitlnmiit/
>>>>>
>>>>> No Body is a Scholar by birth, its only hard work and strong
>>>>> determination that makes him master.
>>>>>
>>>>
>>>
>>> --
>>>
>>> Garvit Sharma
>>> github.com/garvitlnmiit/
>>>
>>> No Body is a Scholar by birth, its only hard work and strong
>>> determination that makes him master.
>>>
>> --
>
> Garvit Sharma
> github.com/garvitlnmiit/
>
> No Body is a Scholar by birth, its only hard work and strong determination
> that makes him master.
>
