Neda,

I'm sorry, I just realized that I pointed you to that version in you last
email.  So you are likely on 0.2.2.

I see that a NPE can occur on line 1083 on the controller.

https://git-wip-us.apache.org/repos/asf?p=incubator-blur.git;a=blob;f=blur-core/src/main/java/org/apache/blur/thrift/BlurControllerServer.java;h=06f5ea3575c0b5797ff78ea65add62717edbd034;hb=b5eb4795d18d80c58fe25e863564548063b16921#l1074

I will take a look at this and try to recreate the problem.  I bet that
it's a race problem after dropping and then creating a new table.  If you
put a sleep for a few seconds after creating the table does it still occur?

Thanks for the information on the bug.  Sorry for the earlier response, I
should have looked at the stack trace more closely.

Aaron



On Fri, Apr 11, 2014 at 12:34 PM, Aaron McCurry <[email protected]> wrote:

> What version are you running?  If it's the 0.2.0 release then it has a
> series of know bugs related to table name reuse.  Truncate is basically
> dropping a table by it's name and recreating it.  The bugs are related to a
> table name being reused.  I would suggest that you run 0.2.2 which has not
> been released yet.  It is code complete and has the the fixes for this
> problem.
>
> I would suggest that you run code from the apache-blur-0.2 branch.  The
> version will be 0.2.2 when released.
>
> To check it out and compile yourself:
>
> git clone https://git-wip-us.apache.org/repos/asf/incubator-blur.git
> git checkout apache-blur-0.2
> mvn install -DskipTests -Dhadoop1
>
> You could also grab the latest build binaries from Jenkins Apache CI
> server:
>
> https://builds.apache.org/job/Blur-master-jdk6/
>
> Download links:
>
>
> https://builds.apache.org/job/Blur-master-jdk6/216/org.apache.blur$apache-blur/
>
> Let us know if you have any other questions or issues.
>
> Aaron
>
>
> On Fri, Apr 11, 2014 at 11:28 AM, Neda Grbic <[email protected]>wrote:
>
>> Hi!
>>
>> I've been trying to truncate table from my code.
>> I did succeed in that, but if I try to add some data to it afterwards, I
>> get NullPointerException at
>>
>>  stackTraceStr:java.lang.NullPointerException
>>     at org.apache.blur.thrift.BlurControllerServer.mutate(
>> BlurControllerServer.java:1083)
>>     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
>>     at sun.reflect.DelegatingMethodAccessorImpl.invoke(
>> DelegatingMethodAccessorImpl.java:43)
>>     at java.lang.reflect.Method.invoke(Method.java:606)
>>
>> While truncating table, I tried fetching its descriptor before and using
>> it afterwards when recreating, but same error.
>> As far as I've seen, only restarting shard server helped. I'm using only
>> one shard server when testing.
>>
>> Any ideas?
>>
>> Thanks,
>> Neda
>>
>
>

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