Hi Dmitri,
it doesn't happen in my code and it does happen while the riak-client
tries to deserialize a fetched object from riak in a
"fetch-before-store" (see the stack), I also get this error randomly
while trying just to fetch an object from the database.
And if I try to fetch the object from the cmdline I just get a 404. So I
would expect the java-client just returns a null-result for this fetch
and not to throw an exception.
All my objects are stored using the riak-java-client and the
json-serializer.
Ahh, just tested: if I retry it sometimes works, although most of the
time still fails (haven't tried with a sleep so far).
Ingo
Am 30.01.2013 16:57, schrieb Dmitri Zagidulin:
Hi Ingo.
It's difficult to diagnose the exact reason without looking at your code.
But that error is a JSON parser error. It gets thrown whenever the code
tries to parse an empty string as a json object.
The general-case solution is to validate your strings or input streams
that you're turning into JSON objects, or to catch an exception when
creating that object and deal with it accordingly.
But again, it's hard to say why it's happening exactly, in your case --
try to determine where in your code that's happening and think of ways
some input or result is empty, and check for that.
Dmitri
On Wed, Jan 30, 2013 at 10:44 AM, Ingo Rockel
<ingo.roc...@bluelionmobile.com <mailto:ingo.roc...@bluelionmobile.com>>
wrote:
Hi,
I wrote a java tool to convert part of our data from a
mysql-database into riak. As this tool is running while our system
is still up, it needs to replay all modifications done in the mysql
database, during these modifications I sometimes get this exception
from the riak client:
com.basho.riak.client.convert.__ConversionException:
java.io.EOFException: No content to map to Object due to end of input
com.basho.riak.client.convert.__ConversionException:
java.io.EOFException: No content to map to Object due to end of input
at
com.basho.riak.client.convert.__JSONConverter.toDomain(__JSONConverter.java:167)
at
com.basho.riak.client.__operations.FetchObject.__execute(FetchObject.java:110)
at
com.basho.riak.client.__operations.StoreObject.__execute(StoreObject.java:112)
at
com.bluelionmobile.qeep.__messaging.db.impl.__MessageKVImpl.__storeUniqueMessageDto(__MessageKVImpl.java:264)
at
com.bluelionmobile.qeep.__messaging.db.impl.__MessageKVImpl.__createDataFromDTO(__MessageKVImpl.java:138)
at
com.bluelionmobile.qeep.__messaging.db.impl.__MessageKVImpl.__updateDataFromDTO(__MessageKVImpl.java:205)
at
com.bluelionmobile.qeep.__messaging.db.utils.Replay$__ReplayRunner.run(Replay.java:__243)
at java.lang.Thread.run(Thread.__java:722)
Caused by: java.io.EOFException: No content to map to Object due to
end of input
at
org.codehaus.jackson.map.__ObjectMapper._initForReading(__ObjectMapper.java:2775)
at
org.codehaus.jackson.map.__ObjectMapper._readMapAndClose(__ObjectMapper.java:2718)
at
org.codehaus.jackson.map.__ObjectMapper.readValue(__ObjectMapper.java:1863)
at
com.basho.riak.client.convert.__JSONConverter.toDomain(__JSONConverter.java:156)
... 7 more
it only happens once every few thousand updates and if I check the
object from the cmdline I only get a 404.
Any ideas what might cause this and how to fix/workaround it?
Ingo
_________________________________________________
riak-users mailing list
riak-users@lists.basho.com <mailto:riak-users@lists.basho.com>
http://lists.basho.com/__mailman/listinfo/riak-users___lists.basho.com
<http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com>
_______________________________________________
riak-users mailing list
riak-users@lists.basho.com
http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
--
Software Architect
Blue Lion mobile GmbH
Tel. +49 (0) 221 788 797 14
Fax. +49 (0) 221 788 797 19
Mob. +49 (0) 176 24 87 30 89
ingo.roc...@bluelionmobile.com
>>> qeep: Hefferwolf
www.bluelionmobile.com
www.qeep.net
_______________________________________________
riak-users mailing list
riak-users@lists.basho.com
http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
