Compressor detection can only be called on some xcontent bytes or compressed xcontent bytes


#1

I wrote this easy connection on python:

class ElasticS(object):

def __init__(self,portI,ip):
    try:
        self.es = Elasticsearch([ip],port=portI )
        print ("Connected: ",  self.es.info())
    except Exception as ex:
            print ("Error: ", ex)
            return None
        
def get_elastic(self):
    return self.es 
if __name__ == '__main__':
ElasticS(portI=9200,ip='localhost')

Pipeline:

from elasticsearch import Elasticsearch
class Pipeline(object):
    def __init__(self):
        es = Elasticsearch()
        es.cat.health()
        body = {
         "description": "parse arxiv pdfs and index into ES",
         "processors" :
        [
            { "attachment" : { "field": "pdf" } },
            { "remove" : { "field": "pdf" } },
            ]
                 }
        es.index(index='_ingest', doc_type='pipeline', id='attachment', body=body)
    
if __name__ == '__main__':
    Pipeline()

Insert with bulk streaming:

from elasticsearch.helpers import streaming_bulk
from Config.Connection import ElasticS
from Config.Parse import Parse

es = ElasticS(ip='localhost',portI=9200)
p = Parse()

for ok, result in streaming_bulk(
            client=es.get_elastic(),
            actions=p.parse_pdf(filename="QzpccHJvdmFcMTcwMS4wMDg5MC5wZGY="),
            index="arxiv",
            doc_type="arxiv",
            chunk_size=4,
            params={"pipeline": "attachment"}
        ):
            action, result = result.popitem()
if not ok:
            print("failed to index document")
else:
            print("Success!")

I GOT THIS ERROR:

[2017-01-19T17:53:14,342][DEBUG][o.e.a.i.IngestActionFilter] [node1] failed to execute pipeline [attachment] for document [arxiv/arxiv/null]
org.elasticsearch.common.compress.NotXContentException: Compressor detection can only be called on some xcontent bytes or compressed xcontent bytes
        at org.elasticsearch.common.compress.CompressorFactory.compressor(CompressorFactory.java:57) ~[elasticsearch-5.1.1.jar:5.1.1]
        at org.elasticsearch.common.xcontent.XContentHelper.convertToMap(XContentHelper.java:65) ~[elasticsearch-5.1.1.jar:5.1.1]
        at org.elasticsearch.action.index.IndexRequest.sourceAsMap(IndexRequest.java:403) ~[elasticsearch-5.1.1.jar:5.1.1]
        at org.elasticsearch.ingest.PipelineExecutionService.innerExecute(PipelineExecutionService.java:164) ~[elasticsearch-5.1.1.jar:5.1.1]
        at org.elasticsearch.ingest.PipelineExecutionService.access$000(PipelineExecutionService.java:41) ~[elasticsearch-5.1.1.jar:5.1.1]
        at org.elasticsearch.ingest.PipelineExecutionService$2.doRun(PipelineExecutionService.java:88) [elasticsearch-5.1.1.jar:5.1.1]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:527) [elasticsearch-5.1.1.jar:5.1.1]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-5.1.1.jar:5.1.1]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_101]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_101]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_101]

i'm following this guide btw: GUIDE

My main goal is to insert documents on elasticsearch and work with them...
i'm pretty sure im doing something wrong. thank you


#2

can someone help me out please :frowning:


#3

@dadoonet


(Tal Levy) #4

Hi @sup3race, I think I am missing some context with the code, but it seems p.parse_pdf(filename="QzpccHJvdmFcMTcwMS4wMDg5MC5wZGY=") is to blame.

however you are parsing the pdf and generating the appropriate actions objects. It seems they do not follow the appropriate json structure that is required.

take a look at the example action objects found in the python docs here: http://elasticsearch-py.readthedocs.io/en/master/helpers.html. the pdf needs to be converted into a base64 string value in a json field.

let me know if that helps!


(system) #5

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