Raw message in this case assumes that the raw message is a String embedded
in the json field that you supply, not a nested json object, so it is
looking for
“_source” : “some other embedded string of some format like syslog in json”
There are other message strategies, but I’m not sure they would work in
this instance. I’ll keep looking. hopefully someone more familiar will
jump in.
On April 25, 2019 at 10:48:06, stephane.d...@orange.com (
stephane.d...@orange.com) wrote:
Hello,
I’m trying to load some JSON data which has the following structure (this
is a sample):
{
"_index": "indexing",
"_type": "Event",
"_id": "AWAkTAefYn0uCUpkHmCy",
"_score": 1,
"_source": {
"dst": "127.0.0.1",
"devTimeEpoch": "1512437340000",
"dstPort": "0",
"srcPort": "80",
"src": "194.51.198.185"
}
}
In my file, everything is on the same line. My parser config is the
following:
{
"parserClassName": "org.apache.metron.parsers.json.JSONMapParser",
"filterClassName": null,
"sensorTopic": "my_topic",
"outputTopic": null,
"errorTopic": null,
"writerClassName": null,
"errorWriterClassName": null,
"readMetadata": true,
"mergeMetadata": true,
"numWorkers": 2,
"numAckers": null,
"spoutParallelism": 1,
"spoutNumTasks": 1,
"parserParallelism": 2,
"parserNumTasks": 2,
"errorWriterParallelism": 1,
"errorWriterNumTasks": 1,
"spoutConfig": {},
"securityProtocol": null,
"stormConfig": {},
"parserConfig": {
},
"fieldTransformations": [
{
"transformation":"RENAME",
"config": {
"dst": "ip_dst_addr",
"src": "ip_src_addr",
"srcPort": "ip_src_port",
"dstPort": "ip_dst_port",
"devTimeEpoch": "timestamp"
}
}
],
"cacheConfig": {},
"rawMessageStrategy": "ENVELOPE",
"rawMessageStrategyConfig": {
"messageField": "_source"
}
}
But in Storm I get the following errors:
2019-04-25 16:45:22.225 o.a.s.d.executor Thread-5-parserBolt-executor[8 8]
[ERROR]
java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to
java.lang.String
at
org.apache.metron.common.message.metadata.EnvelopedRawMessageStrategy.get(EnvelopedRawMessageStrategy.java:78)
~[stormjar.jar:?]
at
org.apache.metron.common.message.metadata.RawMessageStrategies.get(RawMessageStrategies.java:54)
~[stormjar.jar:?]
at
org.apache.metron.common.message.metadata.RawMessageUtil.getRawMessage(RawMessageUtil.java:55)
~[stormjar.jar:?]
at
org.apache.metron.parsers.bolt.ParserBolt.execute(ParserBolt.java:251)
[stormjar.jar:?]
at
org.apache.storm.daemon.executor$fn__10195$tuple_action_fn__10197.invoke(executor.clj:735)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at
org.apache.storm.daemon.executor$mk_task_receiver$fn__10114.invoke(executor.clj:466)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at
org.apache.storm.disruptor$clojure_handler$reify__4137.onEvent(disruptor.clj:40)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at
org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:472)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at
org.apache.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:451)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at
org.apache.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:73)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at
org.apache.storm.daemon.executor$fn__10195$fn__10208$fn__10263.invoke(executor.clj:855)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at org.apache.storm.util$async_loop$fn__1221.invoke(util.clj:484)
[storm-core-1.1.0.2.6.5.1050-37.jar:1.1.0.2.6.5.1050-37]
at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
How can I debug this?
Thanks
Stéphane
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