Re: cassandra 1.2.6 - Start key's token sorts after end token

2013-07-25 Thread Marcelo Elias Del Valle
We managed to make it work with RandomPartitioner... Guess we will rely on
it for now...


2013/7/23 Hiller, Dean dean.hil...@nrel.gov

 Oh, and in the past 0.20.x has been pretty stable by the wayŠ..they
 finally switched their numbering scheme thank god.

 Dean

 On 7/23/13 2:13 PM, Hiller, Dean dean.hil...@nrel.gov wrote:

 Perhaps try 0.20.2 as
 
  1.  The maven pom files have cassandra depending on 0.20.2
  2.  The 0.20.2 default was murmur and we had to change it to random
 partitioner or it wouldn't work for us
 
 Ie. I suspect they will change the pom file to a more recent version of
 hadoop at some point but I wonder if test suites suck in 0.20.2 because
 the pom file points to that versionŠ.depends on if they actually have
 tests for map/reduce which is probably a bit hard.
 
 Dean
 
 From: Marcelo Elias Del Valle
 mvall...@gmail.commailto:mvall...@gmail.com
 Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
 user@cassandra.apache.orgmailto:user@cassandra.apache.org
 Date: Tuesday, July 23, 2013 1:54 PM
 To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
 user@cassandra.apache.orgmailto:user@cassandra.apache.org
 Subject: Re: cassandra 1.2.6 - Start key's token sorts after end token
 
 Dean,
 
 I am using hadoop 1.0.3.
 Indeed, using Cassandra 1.2.3 with Random partitioner, it worked.
 However, it's the only reason for me to use randompartitioner, I really
 would like to move forward. Besides, I tried to use Cassandra 1.2.6 with
 RandomPartitioner and I got problems when inserting data, even stopping
 Cassandra, cleaning my entire data folder and then starting it again.
 I am also really curious to know if there is anyone else having these
 problems or if it is just me...
 
 Best regards,
 Marcelo.
 
 
 2013/7/23 Hiller, Dean dean.hil...@nrel.govmailto:dean.hil...@nrel.gov
 
 Out of curiosity, what version of hadoop are you using with cassandra?  I
 think we are trying 0.20.2 if I remember(I have to ask my guy working on
 it to be sure).  I do remember him saying the cassandra maven dependency
 was odd in that it is in the older version and not a newer hadoop version.
 
 We are using RandomPartitioner though right now which I have personally
 used in the past with success.  We are in the process of map/reducing to
 a cassandra with MurmurPartitioner  (our real reason to map/reduce is
 some refactorings in our model though and we just thought we would switch
 to murmur).
 
 Has anyone else used map/reduce with murmur partitioner?
 
 Dean
 
 From: Marcelo Elias Del Valle
 mvall...@gmail.commailto:mvall...@gmail.commailto:mvall...@gmail.com
 m
 ailto:mvall...@gmail.com
 Reply-To:
 user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:
 user@c
 assandra.apache.orgmailto:user@cassandra.apache.org
 user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:
 user@c
 assandra.apache.orgmailto:user@cassandra.apache.org
 Date: Monday, July 22, 2013 4:04 PM
 To:
 user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:
 user@c
 assandra.apache.orgmailto:user@cassandra.apache.org
 user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:
 user@c
 assandra.apache.orgmailto:user@cassandra.apache.org
 Subject: cassandra 1.2.6 - Start key's token sorts after end token
 
 Hello,
 
 I am trying to figure what might be cause this error. I am using
 Cassandra 1.2.6 (tried with 1.2.3 as well) and I am trying to read data
 from cassandra on hadoop using column family input format. I also got the
 same error using pure astyanax on a test.
 I am using Murmur3Partitioner and I created the keyspace using
 Cassandra 1.2.6, there is nothing from prior versions. I created the
 keyspace with SimpleStrategy and replication factor 1.
 Here is the exception I am getting:
 2013-07-22 21:53:05,824 WARN org.apache.hadoop.mapred.Child (main): Error
 running child
 java.lang.RuntimeException: InvalidRequestException(why:Start key's token
 sorts after end token)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.maybe
 Init(ColumnFamilyRecordReader.java:453)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.compu
 teNext(ColumnFamilyRecordReader.java:459)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.compu
 teNext(ColumnFamilyRecordReader.java:406)
 at
 com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterat
 or.java:143)
 at
 com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:1
 38)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getProgress(ColumnFam
 ilyRecordReader.java:103)
 at
 org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.getProgress(MapTa
 sk.java:522)
 at
 org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapT
 ask.java:547)
 at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
 at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143

Re: cassandra 1.2.6 - Start key's token sorts after end token

2013-07-23 Thread Hiller, Dean
Out of curiosity, what version of hadoop are you using with cassandra?  I think 
we are trying 0.20.2 if I remember(I have to ask my guy working on it to be 
sure).  I do remember him saying the cassandra maven dependency was odd in that 
it is in the older version and not a newer hadoop version.

We are using RandomPartitioner though right now which I have personally used in 
the past with success.  We are in the process of map/reducing to a cassandra 
with MurmurPartitioner  (our real reason to map/reduce is some refactorings in 
our model though and we just thought we would switch to murmur).

Has anyone else used map/reduce with murmur partitioner?

Dean

From: Marcelo Elias Del Valle mvall...@gmail.commailto:mvall...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org 
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Monday, July 22, 2013 4:04 PM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org 
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: cassandra 1.2.6 - Start key's token sorts after end token

Hello,

I am trying to figure what might be cause this error. I am using Cassandra 
1.2.6 (tried with 1.2.3 as well) and I am trying to read data from cassandra on 
hadoop using column family input format. I also got the same error using pure 
astyanax on a test.
I am using Murmur3Partitioner and I created the keyspace using Cassandra 
1.2.6, there is nothing from prior versions. I created the keyspace with 
SimpleStrategy and replication factor 1.
Here is the exception I am getting:
2013-07-22 21:53:05,824 WARN org.apache.hadoop.mapred.Child (main): Error 
running child
java.lang.RuntimeException: InvalidRequestException(why:Start key's token sorts 
after end token)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.maybeInit(ColumnFamilyRecordReader.java:453)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.computeNext(ColumnFamilyRecordReader.java:459)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.computeNext(ColumnFamilyRecordReader.java:406)
at 
com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getProgress(ColumnFamilyRecordReader.java:103)
at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.getProgress(MapTask.java:522)
at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:547)
at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:771)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:375)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1132)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: InvalidRequestException(why:Start key's token sorts after end token)
at 
org.apache.cassandra.thrift.Cassandra$get_paged_slice_result.read(Cassandra.java:14168)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
at 
org.apache.cassandra.thrift.Cassandra$Client.recv_get_paged_slice(Cassandra.java:769)
at 
org.apache.cassandra.thrift.Cassandra$Client.get_paged_slice(Cassandra.java:753)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.maybeInit(ColumnFamilyRecordReader.java:438)
... 16 more
2013-07-22 21:53:05,828 INFO org.apache.hadoop.mapred.Task (main): Runnning 
cleanup for the task

 Any hint?

Best regards,
--
Marcelo Elias Del Valle
http://mvalle.com - @mvallebr


Re: cassandra 1.2.6 - Start key's token sorts after end token

2013-07-23 Thread Marcelo Elias Del Valle
Dean,

I am using hadoop 1.0.3.
Indeed, using Cassandra 1.2.3 with Random partitioner, it worked.
However, it's the only reason for me to use randompartitioner, I really
would like to move forward. Besides, I tried to use Cassandra 1.2.6 with
RandomPartitioner and I got problems when inserting data, even stopping
Cassandra, cleaning my entire data folder and then starting it again.
I am also really curious to know if there is anyone else having these
problems or if it is just me...

Best regards,
Marcelo.


2013/7/23 Hiller, Dean dean.hil...@nrel.gov

 Out of curiosity, what version of hadoop are you using with cassandra?  I
 think we are trying 0.20.2 if I remember(I have to ask my guy working on it
 to be sure).  I do remember him saying the cassandra maven dependency was
 odd in that it is in the older version and not a newer hadoop version.

 We are using RandomPartitioner though right now which I have personally
 used in the past with success.  We are in the process of map/reducing to a
 cassandra with MurmurPartitioner  (our real reason to map/reduce is some
 refactorings in our model though and we just thought we would switch to
 murmur).

 Has anyone else used map/reduce with murmur partitioner?

 Dean

 From: Marcelo Elias Del Valle mvall...@gmail.commailto:
 mvall...@gmail.com
 Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org 
 user@cassandra.apache.orgmailto:user@cassandra.apache.org
 Date: Monday, July 22, 2013 4:04 PM
 To: user@cassandra.apache.orgmailto:user@cassandra.apache.org 
 user@cassandra.apache.orgmailto:user@cassandra.apache.org
 Subject: cassandra 1.2.6 - Start key's token sorts after end token

 Hello,

 I am trying to figure what might be cause this error. I am using
 Cassandra 1.2.6 (tried with 1.2.3 as well) and I am trying to read data
 from cassandra on hadoop using column family input format. I also got the
 same error using pure astyanax on a test.
 I am using Murmur3Partitioner and I created the keyspace using
 Cassandra 1.2.6, there is nothing from prior versions. I created the
 keyspace with SimpleStrategy and replication factor 1.
 Here is the exception I am getting:
 2013-07-22 21:53:05,824 WARN org.apache.hadoop.mapred.Child (main): Error
 running child
 java.lang.RuntimeException: InvalidRequestException(why:Start key's token
 sorts after end token)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.maybeInit(ColumnFamilyRecordReader.java:453)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.computeNext(ColumnFamilyRecordReader.java:459)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.computeNext(ColumnFamilyRecordReader.java:406)
 at
 com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
 at
 com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getProgress(ColumnFamilyRecordReader.java:103)
 at
 org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.getProgress(MapTask.java:522)
 at
 org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:547)
 at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
 at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
 at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:771)
 at org.apache.hadoop.mapred.MapTask.run(MapTask.java:375)
 at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
 at java.security.AccessController.doPrivileged(Native Method)
 at javax.security.auth.Subject.doAs(Subject.java:396)
 at
 org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1132)
 at org.apache.hadoop.mapred.Child.main(Child.java:249)
 Caused by: InvalidRequestException(why:Start key's token sorts after end
 token)
 at
 org.apache.cassandra.thrift.Cassandra$get_paged_slice_result.read(Cassandra.java:14168)
 at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
 at
 org.apache.cassandra.thrift.Cassandra$Client.recv_get_paged_slice(Cassandra.java:769)
 at
 org.apache.cassandra.thrift.Cassandra$Client.get_paged_slice(Cassandra.java:753)
 at
 org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.maybeInit(ColumnFamilyRecordReader.java:438)
 ... 16 more
 2013-07-22 21:53:05,828 INFO org.apache.hadoop.mapred.Task (main):
 Runnning cleanup for the task

  Any hint?

 Best regards,
 --
 Marcelo Elias Del Valle
 http://mvalle.com - @mvallebr




-- 
Marcelo Elias Del Valle
http://mvalle.com - @mvallebr


Re: cassandra 1.2.6 - Start key's token sorts after end token

2013-07-23 Thread Hiller, Dean
Perhaps try 0.20.2 as

 1.  The maven pom files have cassandra depending on 0.20.2
 2.  The 0.20.2 default was murmur and we had to change it to random 
partitioner or it wouldn't work for us

Ie. I suspect they will change the pom file to a more recent version of hadoop 
at some point but I wonder if test suites suck in 0.20.2 because the pom file 
points to that version….depends on if they actually have tests for map/reduce 
which is probably a bit hard.

Dean

From: Marcelo Elias Del Valle mvall...@gmail.commailto:mvall...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org 
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Tuesday, July 23, 2013 1:54 PM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org 
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: cassandra 1.2.6 - Start key's token sorts after end token

Dean,

I am using hadoop 1.0.3.
Indeed, using Cassandra 1.2.3 with Random partitioner, it worked. However, 
it's the only reason for me to use randompartitioner, I really would like to 
move forward. Besides, I tried to use Cassandra 1.2.6 with RandomPartitioner 
and I got problems when inserting data, even stopping Cassandra, cleaning my 
entire data folder and then starting it again.
I am also really curious to know if there is anyone else having these 
problems or if it is just me...

Best regards,
Marcelo.


2013/7/23 Hiller, Dean dean.hil...@nrel.govmailto:dean.hil...@nrel.gov
Out of curiosity, what version of hadoop are you using with cassandra?  I think 
we are trying 0.20.2 if I remember(I have to ask my guy working on it to be 
sure).  I do remember him saying the cassandra maven dependency was odd in that 
it is in the older version and not a newer hadoop version.

We are using RandomPartitioner though right now which I have personally used in 
the past with success.  We are in the process of map/reducing to a cassandra 
with MurmurPartitioner  (our real reason to map/reduce is some refactorings in 
our model though and we just thought we would switch to murmur).

Has anyone else used map/reduce with murmur partitioner?

Dean

From: Marcelo Elias Del Valle 
mvall...@gmail.commailto:mvall...@gmail.commailto:mvall...@gmail.commailto:mvall...@gmail.com
Reply-To: 
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.org
 
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Monday, July 22, 2013 4:04 PM
To: 
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.org
 
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: cassandra 1.2.6 - Start key's token sorts after end token

Hello,

I am trying to figure what might be cause this error. I am using Cassandra 
1.2.6 (tried with 1.2.3 as well) and I am trying to read data from cassandra on 
hadoop using column family input format. I also got the same error using pure 
astyanax on a test.
I am using Murmur3Partitioner and I created the keyspace using Cassandra 
1.2.6, there is nothing from prior versions. I created the keyspace with 
SimpleStrategy and replication factor 1.
Here is the exception I am getting:
2013-07-22 21:53:05,824 WARN org.apache.hadoop.mapred.Child (main): Error 
running child
java.lang.RuntimeException: InvalidRequestException(why:Start key's token sorts 
after end token)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.maybeInit(ColumnFamilyRecordReader.java:453)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.computeNext(ColumnFamilyRecordReader.java:459)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.computeNext(ColumnFamilyRecordReader.java:406)
at 
com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getProgress(ColumnFamilyRecordReader.java:103)
at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.getProgress(MapTask.java:522)
at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:547)
at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:771)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:375)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1132)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused

Re: cassandra 1.2.6 - Start key's token sorts after end token

2013-07-23 Thread Hiller, Dean
Oh, and in the past 0.20.x has been pretty stable by the wayŠ..they
finally switched their numbering scheme thank god.

Dean

On 7/23/13 2:13 PM, Hiller, Dean dean.hil...@nrel.gov wrote:

Perhaps try 0.20.2 as

 1.  The maven pom files have cassandra depending on 0.20.2
 2.  The 0.20.2 default was murmur and we had to change it to random
partitioner or it wouldn't work for us

Ie. I suspect they will change the pom file to a more recent version of
hadoop at some point but I wonder if test suites suck in 0.20.2 because
the pom file points to that versionŠ.depends on if they actually have
tests for map/reduce which is probably a bit hard.

Dean

From: Marcelo Elias Del Valle
mvall...@gmail.commailto:mvall...@gmail.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Tuesday, July 23, 2013 1:54 PM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: cassandra 1.2.6 - Start key's token sorts after end token

Dean,

I am using hadoop 1.0.3.
Indeed, using Cassandra 1.2.3 with Random partitioner, it worked.
However, it's the only reason for me to use randompartitioner, I really
would like to move forward. Besides, I tried to use Cassandra 1.2.6 with
RandomPartitioner and I got problems when inserting data, even stopping
Cassandra, cleaning my entire data folder and then starting it again.
I am also really curious to know if there is anyone else having these
problems or if it is just me...

Best regards,
Marcelo.


2013/7/23 Hiller, Dean dean.hil...@nrel.govmailto:dean.hil...@nrel.gov
Out of curiosity, what version of hadoop are you using with cassandra?  I
think we are trying 0.20.2 if I remember(I have to ask my guy working on
it to be sure).  I do remember him saying the cassandra maven dependency
was odd in that it is in the older version and not a newer hadoop version.

We are using RandomPartitioner though right now which I have personally
used in the past with success.  We are in the process of map/reducing to
a cassandra with MurmurPartitioner  (our real reason to map/reduce is
some refactorings in our model though and we just thought we would switch
to murmur).

Has anyone else used map/reduce with murmur partitioner?

Dean

From: Marcelo Elias Del Valle
mvall...@gmail.commailto:mvall...@gmail.commailto:mvall...@gmail.comm
ailto:mvall...@gmail.com
Reply-To: 
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@c
assandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@c
assandra.apache.orgmailto:user@cassandra.apache.org
Date: Monday, July 22, 2013 4:04 PM
To: 
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@c
assandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.orgmailto:user@c
assandra.apache.orgmailto:user@cassandra.apache.org
Subject: cassandra 1.2.6 - Start key's token sorts after end token

Hello,

I am trying to figure what might be cause this error. I am using
Cassandra 1.2.6 (tried with 1.2.3 as well) and I am trying to read data
from cassandra on hadoop using column family input format. I also got the
same error using pure astyanax on a test.
I am using Murmur3Partitioner and I created the keyspace using
Cassandra 1.2.6, there is nothing from prior versions. I created the
keyspace with SimpleStrategy and replication factor 1.
Here is the exception I am getting:
2013-07-22 21:53:05,824 WARN org.apache.hadoop.mapred.Child (main): Error
running child
java.lang.RuntimeException: InvalidRequestException(why:Start key's token
sorts after end token)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.maybe
Init(ColumnFamilyRecordReader.java:453)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.compu
teNext(ColumnFamilyRecordReader.java:459)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader$WideRowIterator.compu
teNext(ColumnFamilyRecordReader.java:406)
at 
com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterat
or.java:143)
at 
com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:1
38)
at 
org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getProgress(ColumnFam
ilyRecordReader.java:103)
at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.getProgress(MapTa
sk.java:522)
at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapT
ask.java:547)
at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:771)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:375)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs