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https://reviews.apache.org/r/44471/
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Review request for Aurora, Bill Farner and Zameer Manji.


Bugs: AURORA-1627
    https://issues.apache.org/jira/browse/AURORA-1627


Repository: aurora


Description
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H2 DB is now `script`ed into a dedicated `dbScript` field in `Snapshot` thrift 
struct to speed up recovery under H2 MVStore.

There was extra care needed to ensure task stores are functioning properly when 
they are toggled between in-memory and DB mode. Tried to document as much as 
possible. Let me know if something is still unclear. The existing thrift 
snapshot fields will be supported until all stores are fully migrated to H2 and 
removed subsequently along with in-memory store code.

`SnapshotStoreImplTest` got rewritten into `SnapshotStoreImplIT` to fully test 
`TaskStore` migration matrix.

Also, moved checkstyle suppressions into annotations for more precise control.


Diffs
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  api/src/main/thrift/org/apache/aurora/gen/storage.thrift 
6dc46147bb0703e83a210a81ee24081183389a89 
  config/checkstyle/checkstyle.xml 2074beb66ca19eb2da3d444bc64e583409e30ead 
  config/checkstyle/suppressions.xml 50a53e0d96cb365b2182b78769c1749b7e3558a9 
  src/main/java/org/apache/aurora/scheduler/app/SchedulerMain.java 
60b66e85f83edd3c18c97e3938816cb875249d4e 
  src/main/java/org/apache/aurora/scheduler/storage/Storage.java 
5124d17c9bc755e33a3e97b914caed34b77cdb94 
  
src/main/java/org/apache/aurora/scheduler/storage/backup/TemporaryStorage.java 
46b3d104931f175314902ccd39b81c4b6d67d4f3 
  src/main/java/org/apache/aurora/scheduler/storage/db/DbModule.java 
6d8fa11d0aed841388e1e87fc0acdaf6b8f42d06 
  src/main/java/org/apache/aurora/scheduler/storage/db/DbStorage.java 
cca92dd6e9e52f9e38394c4c688ab4897eb8e23f 
  src/main/java/org/apache/aurora/scheduler/storage/log/LogStorageModule.java 
ed63a7471d654dcefd2ff24e2e462974883541f2 
  src/main/java/org/apache/aurora/scheduler/storage/log/SnapshotStoreImpl.java 
db90150b48c5b134dde6c69f70ebca82bfdd0c12 
  src/main/java/org/apache/aurora/scheduler/storage/log/WriteAheadStorage.java 
2f07afb73f6e585a6b43be68134e2beecac83d31 
  src/test/java/org/apache/aurora/scheduler/storage/backup/RecoveryTest.java 
172dd206d09f131807cb33fe841ca6ebc8198a14 
  
src/test/java/org/apache/aurora/scheduler/storage/log/SnapshotStoreImplIT.java 
PRE-CREATION 
  
src/test/java/org/apache/aurora/scheduler/storage/log/SnapshotStoreImplTest.java
 44078675286dec908da7a404ae8fce7c495a7019 
  src/test/sh/org/apache/aurora/e2e/test_end_to_end.sh 
75130a315573dbb9eff1a9b1c5408df27623cf54 

Diff: https://reviews.apache.org/r/44471/diff/


Testing
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./gradlew -Pq build
./src/test/sh/org/apache/aurora/e2e/test_end_to_end.sh


Thanks,

Maxim Khutornenko

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