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Fully encapsulate LocalCheckpointTracker inside of the engine #31213

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dakrone
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@dakrone dakrone commented Jun 8, 2018

This makes the Engine interface not expose the LocalCheckpointTracker, instead
exposing the pieces needed (like retrieving the local checkpoint) as individual
methods.

This makes the Engine interface not expose the `LocalCheckpointTracker`, instead
exposing the pieces needed (like retrieving the local checkpoint) as individual
methods.
@dakrone dakrone added >non-issue v7.0.0 :Distributed/Engine Anything around managing Lucene and the Translog in an open shard. v6.4.0 labels Jun 8, 2018
@dakrone dakrone requested a review from bleskes June 8, 2018 17:58
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Pinging @elastic/es-distributed

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Thank you @dakrone ! I left one comment about generateSeqNo that I think is important. The rest is just a suggestion.

/**
* @return the maximum sequence number from the local checkpoint tracker
*/
public abstract long getMaxSeqNo();
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maybe we can remove this? it's only used in one place where I think we can just use getSeqNoStats?

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Certainly, I've done that, passing in -1 for the globalCheckpoint

/**
* @return generate a new sequence number from the local checkpoint tracker
*/
public abstract long generateSeqNo();
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this is super dangerous IMO. Maybe we can make getLocalCheckpointTracker package private and have a testing utility to get it? I think that's good enough for tests and we can keep it isolated from production code?

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Yep, I've removed this

@dakrone dakrone requested a review from bleskes June 8, 2018 20:15
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LGTM. Thanks @dakrone

@dakrone dakrone added review and removed review labels Jun 8, 2018
@dakrone dakrone merged commit bdb0fb2 into elastic:master Jun 8, 2018
dakrone added a commit that referenced this pull request Jun 9, 2018
* Fully encapsulate LocalCheckpointTracker inside of the engine

This makes the Engine interface not expose the `LocalCheckpointTracker`, instead
exposing the pieces needed (like retrieving the local checkpoint) as individual
methods.
dnhatn added a commit that referenced this pull request Jun 10, 2018
* 6.x:
  Move default location of dependencies report (#31228)
  Remove dependencies report task dependencies (#31227)
  Add recognition of MPL 2.0 (#31226)
  Fix unknown licenses (#31223)
  Fully encapsulate LocalCheckpointTracker inside of the engine (#31213)
  Remove version from license file name for GCS SDK (#31221)
  Remove DocumentFieldMappers#simpleMatchToFullName. (#31041)
  [DOCS] Removes 6.3.1 release notes
  [DOCS] Splits release notes by major version
  Remove DocumentFieldMappers#smartNameFieldMapper, as it is no longer needed. (#31018)
  Remove extraneous references to 'tokenized' in the mapper code. (#31010)
  SQL: Make a single JDBC driver jar (#31012)
  QA: Fix rolling restart tests some more
  Allow to trim all ops above a certain seq# with a term lower than X
  high level REST api: cancel task (#30745)
  Mute TokenBackwardsCompatibilityIT.testMixedCluster
  Mute WatchBackwardsCompatibilityIT.testWatcherRestart
  Enhance license detection for various licenses (#31198)
  [DOCS] Add note about long-lived idle connections (#30990)
  Add high-level client methods that accept RequestOptions (#31069)
  Remove RestGetAllMappingsAction (#31129)
  Move RestGetSettingsAction to RestToXContentListener (#31101)
  Move number of language analyzers to analysis-common module (#31143)
  flush job to ensure all results have been written (#31187)
dnhatn added a commit that referenced this pull request Jun 10, 2018
dnhatn added a commit that referenced this pull request Jun 10, 2018
* master:
  Move default location of dependencies report (#31228)
  Remove dependencies report task dependencies (#31227)
  Add recognition of MPL 2.0 (#31226)
  Fix unknown licenses (#31223)
  Remove version from license file name for GCS SDK (#31221)
  Fully encapsulate LocalCheckpointTracker inside of the engine (#31213)
  [DOCS] Added 'fail_on_unsupported_field' param to MLT. Closes #28008 (#31160)
  Add licenses for transport-nio (#31218)
  Remove DocumentFieldMappers#simpleMatchToFullName. (#31041)
  Allow to trim all ops above a certain seq# with a term lower than X, post backport fix (#31211)
  Compliant SAML Response destination check (#31175)
  Remove DocumentFieldMappers#smartNameFieldMapper, as it is no longer needed. (#31018)
  Remove extraneous references to 'tokenized' in the mapper code. (#31010)
  Allow to trim all ops above a certain seq# with a term lower than X (#30176)
  SQL: Make a single JDBC driver jar (#31012)
  Enhance license detection for various licenses (#31198)
  [DOCS] Add note about long-lived idle connections (#30990)
  Move number of language analyzers to analysis-common module (#31143)
  Default max concurrent search req. numNodes * 5 (#31171)
  flush job to ensure all results have been written (#31187)
dnhatn added a commit that referenced this pull request Jun 10, 2018
jasontedor added a commit to rjernst/elasticsearch that referenced this pull request Jun 10, 2018
…ecker

* elastic/master: (309 commits)
  [test] add fix for rare virtualbox error (elastic#31212)
  Move default location of dependencies report (elastic#31228)
  Remove dependencies report task dependencies (elastic#31227)
  Add recognition of MPL 2.0 (elastic#31226)
  Fix unknown licenses (elastic#31223)
  Remove version from license file name for GCS SDK (elastic#31221)
  Fully encapsulate LocalCheckpointTracker inside of the engine (elastic#31213)
  [DOCS] Added 'fail_on_unsupported_field' param to MLT. Closes elastic#28008 (elastic#31160)
  Add licenses for transport-nio (elastic#31218)
  Remove DocumentFieldMappers#simpleMatchToFullName. (elastic#31041)
  Allow to trim all ops above a certain seq# with a term lower than X, post backport fix (elastic#31211)
  Compliant SAML Response destination check (elastic#31175)
  Remove DocumentFieldMappers#smartNameFieldMapper, as it is no longer needed. (elastic#31018)
  Remove extraneous references to 'tokenized' in the mapper code. (elastic#31010)
  Allow to trim all ops above a certain seq# with a term lower than X (elastic#30176)
  SQL: Make a single JDBC driver jar (elastic#31012)
  Enhance license detection for various licenses (elastic#31198)
  [DOCS] Add note about long-lived idle connections (elastic#30990)
  Move number of language analyzers to analysis-common module (elastic#31143)
  Default max concurrent search req. numNodes * 5 (elastic#31171)
  ...
@dakrone dakrone deleted the encapsulate-local-checkpoint-tracker branch February 4, 2019 14:47
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4 participants