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From aaron morton <aa...@thelastpickle.com>
Subject Re: json2sstable
Date Wed, 13 Apr 2011 10:44:17 GMT
see conf/cassandra-env.sh to increase the JVM Heap Background reading http://wiki.apache.org/cassandra/MemtableThresholds

There is a fix in 0.7.5 that would help you right now :) If you cannot increase the JVM Heap
reduce the in_memory_compaction_limit in conf/cassandra/yaml

Aaron

On 13 Apr 2011, at 21:53, Steven Teo wrote:

> managed to resolve the earlier error
> but is getting this exception now, any way to increase the heap space, or is a non-related
issue?
> 
> Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
> 	at org.apache.cassandra.io.util.BufferedRandomAccessFile.<init>(BufferedRandomAccessFile.java:123)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.<init>(SSTableWriter.java:78)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.<init>(SSTableWriter.java:65)
> 	at org.apache.cassandra.tools.SSTableImport.importUnsorted(SSTableImport.java:211)
> 	at org.apache.cassandra.tools.SSTableImport.importJson(SSTableImport.java:197)
> 	at org.apache.cassandra.tools.SSTableImport.main(SSTableImport.java:421)
> 
> thanks! 
> Steven Teo
> 
> On 13-Apr-2011, at 1:15 PM, Steven Teo wrote:
> 
>> the data is a custom json, seems like i may have got the structure wrong. 
>> how should the import json be like?
>>  
>> Steven Teo
>> 
>> On 13-Apr-2011, at 10:43 AM, aaron morton wrote:
>> 
>>> Reading the code looks like it could not find a subColumns item for the row in
the json file. 
>>> 
>>> The target CF is a super CF, is the data from a super CF ? 
>>> 
>>> Aaron
>>> 
>>> On 13 Apr 2011, at 07:24, Steven Teo wrote:
>>> 
>>>> Hi,
>>>> 
>>>> I am trying to run json2sstable with the following command but am receiving
the below error.
>>>> 	json2sstable -K testks -c testcf output.json /var/lib/cassandra/data/testks/testcf-f-1-Data.db

>>>> 
>>>> Importing 321 keys...
>>>> java.lang.NullPointerException
>>>> 	at org.apache.cassandra.tools.SSTableImport.addColumnsToCF(SSTableImport.java:136)
>>>> 	at org.apache.cassandra.tools.SSTableImport.addToSuperCF(SSTableImport.java:173)
>>>> 	at org.apache.cassandra.tools.SSTableImport.importUnsorted(SSTableImport.java:228)
>>>> 	at org.apache.cassandra.tools.SSTableImport.importJson(SSTableImport.java:197)
>>>> 	at org.apache.cassandra.tools.SSTableImport.main(SSTableImport.java:421)
>>>> ERROR: null
>>>> 
>>>> anything i did wrongly here?
>>>> 
>>>> Thanks!
>>> 
>> 
> 


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