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From Shekar Tippur <ctip...@gmail.com>
Subject Re: Couple of issues with malformed jsons
Date Tue, 16 Dec 2014 21:42:42 GMT
Chris -

I have tried adding both:

task.drop.deserialization.errors=true

task.ignored.exceptions=org.codehaus.jackson.JsonParseException

Samza still crashes.


- Shekar

On Tue, Dec 16, 2014 at 1:30 PM, Chris Riccomini <
criccomini@linkedin.com.invalid> wrote:
>
> Hey Shekar,
>
> The default behavior for Samza when a serialization exception occurs is to
> fail the container, which will eventually trigger a failure of the job.
> Samza is very conservative about things--by default it will try to never
> drop messages. In a case where deserialization fails, you have two
> options: fail, or drop (or some version of drop, like log bad msgs to a
> different topic). Samza fails by default.
>
> To drop, you can set this configuration:
>
>   task.drop.deserialization.errors
>
>
> See
> http://samza.incubator.apache.org/learn/documentation/0.8/jobs/configuratio
> n-table.html for details.
>
> Cheers,
> Chris
>
> On 12/16/14 12:44 PM, "Shekar Tippur" <ctippur@gmail.com> wrote:
>
> >Hello,
> >
> >I am facing issue when I pass a malformed json.
> >
> >
> >I was testing on how the system would behave if I sent a malformed json. I
> >seem to get a jsonparse exception and the samza process terminates. Any
> >idea on what could be going on and how to mitigate this?
> >
> >Exception in thread "ThreadJob" org.codehaus.jackson.JsonParseException:
> >Unexpected character ('D' (code 68)): expected a valid value (number,
> >String, array, object, 'true', 'false' or 'null')
> >
> > at [Source: [B@ef49347; line: 1, column: 16]
> >
> >        at
> >org.codehaus.jackson.JsonParser._constructError(JsonParser.java:1291)
> >
> >        at
> >org.codehaus.jackson.impl.JsonParserMinimalBase._reportError(JsonParserMin
> >imalBase.java:385)
> >
> >        at
> >org.codehaus.jackson.impl.JsonParserMinimalBase._reportUnexpectedChar(Json
> >ParserMinimalBase.java:306)
> >
> >        at
> >org.codehaus.jackson.impl.Utf8StreamParser._handleUnexpectedValue(Utf8Stre
> >amParser.java:1582)
> >
> >        at
> >org.codehaus.jackson.impl.Utf8StreamParser.nextToken(Utf8StreamParser.java
> >:386)
> >
> >        at
> >org.codehaus.jackson.map.deser.UntypedObjectDeserializer.mapObject(Untyped
> >ObjectDeserializer.java:173)
> >
> >        at
> >org.codehaus.jackson.map.deser.UntypedObjectDeserializer.deserialize(Untyp
> >edObjectDeserializer.java:76)
> >
> >        at
> >org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2
> >402)
> >
> >        at
> >org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1674)
> >
> >        at
> >org.apache.samza.serializers.JsonSerde.fromBytes(JsonSerde.scala:33)
> >
> >        at
> >org.apache.samza.serializers.SerdeManager.fromBytes(SerdeManager.scala:115
> >)
> >
> >        at
> >org.apache.samza.system.SystemConsumers$$anonfun$org$apache$samza$system$S
> >ystemConsumers$$poll$5.apply(SystemConsumers.scala:245)
> >
> >        at
> >org.apache.samza.system.SystemConsumers$$anonfun$org$apache$samza$system$S
> >ystemConsumers$$poll$5.apply(SystemConsumers.scala:242)
> >
> >        at scala.collection.Iterator$class.foreach(Iterator.scala:727)
> >
> >        at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
> >
> >        at
> >scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> >
> >        at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> >
> >        at org.apache.samza.system.SystemConsumers.org
> >$apache$samza$system$SystemConsumers$$poll(SystemConsumers.scala:242)
> >
> >        at
> >org.apache.samza.system.SystemConsumers$$anon$1$$anonfun$call$2.apply(Syst
> >emConsumers.scala:180)
> >
> >        at
> >org.apache.samza.system.SystemConsumers$$anon$1$$anonfun$call$2.apply(Syst
> >emConsumers.scala:180)
> >
> >        at
> >scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scal
> >a:244)
> >
> >        at
> >scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scal
> >a:244)
> >
> >        at scala.collection.Iterator$class.foreach(Iterator.scala:727)
> >
> >        at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
> >
> >        at
> >scala.collection.MapLike$DefaultKeySet.foreach(MapLike.scala:174)
> >
> >        at
> >scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
> >
> >        at
> >scala.collection.AbstractSet.scala$collection$SetLike$$super$map(Set.scala
> >:47)
> >
> >        at scala.collection.SetLike$class.map(SetLike.scala:93)
> >
> >        at scala.collection.AbstractSet.map(Set.scala:47)
> >
> >        at
> >org.apache.samza.system.SystemConsumers$$anon$1.call(SystemConsumers.scala
> >:180)
> >
> >        at
> >org.apache.samza.util.DoublingBackOff.maybeCall(DoublingBackOff.scala:44)
> >
> >        at
> >org.apache.samza.system.SystemConsumers.choose(SystemConsumers.scala:208)
> >
> >        at org.apache.samza.container.RunLoop.process(RunLoop.scala:73)
> >
> >        at org.apache.samza.container.RunLoop.run(RunLoop.scala:57)
> >
> >        at
> >org.apache.samza.container.SamzaContainer.run(SamzaContainer.scala:504)
> >
> >        at
> >org.apache.samza.job.local.ThreadJob$$anon$1.run(ThreadJob.scala:42)
>
>

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