An HTTP line is larger than 4096 bytes

[hanbj]

    val conf = new SparkConf().setAppName("EsTest").setMaster("local[*]")
    conf.set("spark.sql.shuffle.partitions", "6")
    conf.set("spark.default.parallelism", "6")
    conf.set("es.cluster.name", "common")
    conf.set("es.nodes", "localhost")
    conf.set("es.port", "9200")
    val sc = new SparkContext(conf)
    val sqlContext = new SQLContext(sc)
    val index = "le_plan_d/dpa"
    val query = "{\"query\":{\"match_all\":{}}}"
    val dataFrame = sqlContext.esDF(index, query)
    dataFrame.show(2)

My index has more than 600 fields. I execute a simple match_all query.

The wrong information is as follows:
Caused by: org.elasticsearch.hadoop.rest.EsHadoopInvalidRequest: An HTTP line is larger than 4096 bytes.
{"query":{"match_all":{}}}

So，Transfer to post mode.

[jbaiera]

There seems to be some failing tests. Can you make sure that the tests complete successfully for you and comment when you have the PR updated?

[hanbj]

This test class is not well written. Because HTTP URL length is restricted within es.
It is necessary to access es cluster validation.

[jbaiera]

@hanbj thanks for taking a look. I agree that the test case is a bit wonky. I'll go ahead and merge this, and make a commit to make sure that test is doing what its supposed to be doing.

[wonderfuljamesjin]

Hi @hanbj and @jbaiera

I am having the same issue, can I know how to fix this issue. thanks a lot