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[ML] Prevent NPE parsing the stop datafeed request. #33347

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merged 1 commit into from
Sep 3, 2018

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davidkyle
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If a stop datafeed request is sent to a non-master node and the request contains parameters in the request body e.g.

POST _xpack/ml/datafeeds/my-datafeed/_stop
{
  "timeout": "30s"
} 

then a NullPointerException is thrown streaming the request as one of the fields is not initialised by all constructors.

Before this fix an alternative is to pass the options as query parameters in which case the field is safely initialised.

POST _xpack/ml/datafeeds/my-datafeed/_stop?timeout=30s

The issue depends on the request parameters being passed in the request
body rather than as query parameters.
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Pinging @elastic/ml-core

private TimeValue stopTimeout = DEFAULT_TIMEOUT;
private boolean force = false;
private boolean allowNoDatafeeds = true;

public Request(String datafeedId) {
this.datafeedId = ExceptionsHelper.requireNonNull(datafeedId, DatafeedConfig.ID.getPreferredName());
this.resolvedStartedDatafeedIds = new String[] { datafeedId };
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This should not be set to datafeedId and is overwritten in TransportStopDatafeedAction

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@dimitris-athanasiou dimitris-athanasiou left a comment

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LGTM

@davidkyle davidkyle merged commit ccb2ad2 into elastic:master Sep 3, 2018
@davidkyle davidkyle deleted the stop-df-nullptr branch September 3, 2018 12:35
davidkyle added a commit that referenced this pull request Sep 3, 2018
The issue depends on the request parameters being passed in the request
body rather than as query parameters.
davidkyle added a commit that referenced this pull request Sep 3, 2018
The issue depends on the request parameters being passed in the request
body rather than as query parameters.
jasontedor added a commit to jasontedor/elasticsearch that referenced this pull request Sep 3, 2018
* master: (197 commits)
  Prevent NPE parsing the stop datafeed request. (elastic#33347)
  HLRC: Add ML get overall buckets API (elastic#33297)
  Core: Fix epoch millis java time formatter (elastic#33302)
  [Docs] Improve tuning for speed advice (elastic#33315)
  [Rollup] Fix Caps Comparator to handle calendar/fixed time (elastic#33336)
  [CI] Mute  IndexShardTests#testIndexCheckOnStartup fails elastic#33345
  [CI] Mute LuceneChangesSnapshotTests#testUpdateAndReadChangesConcurrently
  Security for _field_names field should not override field statistics (elastic#33261)
  Add early termination support to BucketCollector (elastic#33279)
  Fix extractjar task  ci  (elastic#33272)
  Mute testFollowIndexAndCloseNode
  Logging: Drop Settings from some logging ctors (elastic#33332)
  HLREST: add update by query API (elastic#32760)
  TEST: Increase timeout testFollowIndexAndCloseNode (elastic#33333)
  HLRC: ML Flush job (elastic#33187)
  HLRC: Adding ML Job stats (elastic#33183)
  LLREST: Drop deprecated methods (elastic#33223)
  Mute testSyncerOnClosingShard
  [DOCS] Moves machine learning APIs to docs folder (elastic#31118)
  Mute test watcher usage stats output
  ...
jasontedor added a commit to jasontedor/elasticsearch that referenced this pull request Sep 4, 2018
…e-default-distribution

* elastic/master: (213 commits)
  ML: Fix build after HLRC change
  Fix inner hits retrieval when stored fields are disabled (_none_) (elastic#33018)
  SQL: Show/desc commands now support table ids (elastic#33363)
  Mute testValidateFollowingIndexSettings
  HLRC: Add delete by query API (elastic#32782)
  [ML] The sort field on get records should default to the record_score (elastic#33358)
  [ML] Minor improvements to categorization Grok pattern creation (elastic#33353)
  [DOCS] fix a couple of typos (elastic#33356)
  Disable assemble task instead of removing it (elastic#33348)
  Simplify the return type of FieldMapper#parse. (elastic#32654)
  [ML] Delete forecast API (elastic#31134) (elastic#33218)
  Introduce private settings (elastic#33327)
  [Docs] Add search timeout caveats (elastic#33354)
  TESTS: Fix Race Condition in Temp Path Creation (elastic#33352)
  Fix from_range in search_after in changes snapshot (elastic#33335)
  TESTS+DISTR.: Fix testIndexCheckOnStartup Flake (elastic#33349)
  Null completion field should not throw IAE (elastic#33268)
  Adds code to help with IndicesRequestCacheIT failures (elastic#33313)
  Prevent NPE parsing the stop datafeed request. (elastic#33347)
  HLRC: Add ML get overall buckets API (elastic#33297)
  ...
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4 participants