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From merrimanr <...@git.apache.org>
Subject [GitHub] metron pull request #729: METRON-1150: REST parseMessage endpoint fails with...
Date Fri, 01 Sep 2017 21:37:09 GMT
GitHub user merrimanr opened a pull request:

    https://github.com/apache/metron/pull/729

    METRON-1150: REST parseMessage endpoint fails with Unable to load <grok file> from
either classpath or HDFS

    ## Contributor Comments
    This PR fixes a regression in the REST app related to parsing sample messages with Grok.
 When parsing a sample message, the REST app now stores the temporary grok pattern in HDFS
instead of the local file system. 
    
    This has been tested on full dev and can be verified in a couple different ways.  The
`/api/v1/sensor/parser/config/parseMessage` endpoint should now correctly parse a sample message
with Grok.  For example, this request:
    ```
    {
      "sampleData": "1461576382.642    161 127.0.0.1 TCP_MISS/200 103701 GET http://www.cnn.com/
- DIRECT/199.27.79.73 text/html",
      "sensorParserConfig": {
        "parserClassName": "org.apache.metron.parsers.GrokParser",
        "filterClassName": null,
        "sensorTopic": "squid",
        "writerClassName": null,
        "errorWriterClassName": null,
        "invalidWriterClassName": null,
        "readMetadata": false,
        "mergeMetadata": false,
        "parserConfig": {
          "grokPath": "./squid",
          "patternLabel": "SQUID_DELIMITED",
          "timestampField": "timestamp"
        },
        "fieldTransformations": [
          {
            "input": [],
            "output": [
              "full_hostname",
              "domain_without_subdomains"
            ],
            "transformation": "STELLAR",
            "config": {
              "full_hostname": "URL_TO_HOST(url)",
              "domain_without_subdomains": "DOMAIN_REMOVE_SUBDOMAINS(full_hostname)"
            }
          }
        ]
      },
      "grokStatement": "SQUID_DELIMITED %{NUMBER:timestamp}[^0-9]*%{INT:elapsed} %{IP:ip_src_addr}
%{WORD:action}/%{NUMBER:code} %{NUMBER:bytes} %{WORD:method} %{NOTSPACE:url}[^0-9]*(%{IP:ip_dst_addr})?\n\n"
    }
    ```
    Should now properly return a parsed message.  This can also be verified with the management
UI by editing a parser of type Grok (squid for example) and testing sample data in the Grok
editor pane.
    
    I also removed the "grok.path.default" property from REST because it was no longer being
used.
    
    ## Pull Request Checklist
    
    Thank you for submitting a contribution to Apache Metron.  
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      ```
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/merrimanr/incubator-metron METRON-1150

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/metron/pull/729.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #729
    
----
commit 1ccf4f372ace43ac5507e261ccf1e654ec374257
Author: merrimanr <merrimanr@gmail.com>
Date:   2017-09-01T21:29:47Z

    initial commit

----


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