We don’t need to support lucene5x codecs in 7, so you should be able to just 
remove those tests (and the the relevant packages from backwards-codecs too), I 
think?


> On 28 Jun 2017, at 08:38, Anshum Gupta <ansh...@apple.com> wrote:
> 
> I tried to move forward to see this work before automatically computing the 
> versions but I have about 30 odd failing test. I’ve made those changes and 
> pushed to my local GitHub account in case you have the time to look: 
> https://github.com/anshumg/lucene-solr 
> <https://github.com/anshumg/lucene-solr> 
> 
> Here’s the build summary if that helps:
> 
>    [junit4] Tests with failures [seed: 31C3B60E557C7E14] (first 10 out of 31):
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testOutliers2
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testShortRange
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testFewValues
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testFullLongRange
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testRamBytesUsed
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testFewLargeValues
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testByteRange
>    [junit4]   - 
> org.apache.lucene.codecs.lucene53.TestLucene53NormsFormat.testLongRange
>    [junit4]   - 
> org.apache.lucene.codecs.lucene50.TestLucene50SegmentInfoFormat.testRandomExceptions
>    [junit4]   - 
> org.apache.lucene.codecs.lucene62.TestLucene62SegmentInfoFormat.testRandomExceptions
>    [junit4] 
>    [junit4] 
>    [junit4] JVM J0:     0.56 ..     9.47 =     8.91s
>    [junit4] JVM J1:     0.56 ..     4.13 =     3.57s
>    [junit4] JVM J2:     0.56 ..    47.28 =    46.73s
>    [junit4] JVM J3:     0.56 ..     3.89 =     3.33s
>    [junit4] Execution time total: 47 seconds
>    [junit4] Tests summary: 8 suites, 215 tests, 30 errors, 1 failure, 24 
> ignored (24 assumptions)
> 
> 
> -Anshum
> 
> 
> 
>> On Jun 27, 2017, at 4:15 AM, Adrien Grand <jpou...@gmail.com 
>> <mailto:jpou...@gmail.com>> wrote:
>> 
>> The test***BackwardCompatibility cases can be removed since they make sure 
>> that Lucene 7 can read Lucene 6 norms, while Lucene 8 doesn't have to be 
>> able to read Lucene 6 norms.
>> 
>> TestSegmentInfos needs to be adapted to the new versions, we need to replace 
>> 5 with 6 and 8 with 9. Maybe we should compute those numbers automatically 
>> based on Version.LATEST.major so that it does not require manual changes 
>> when moving to a new major version. That would give 5 -> 
>> Version.LATEST.major-2 and 8 -> Version.LATEST.major+1.
>> 
>> I can do those changes on Thursday if you don't feel comfortable doing them.
>> 
>> 
>> 
>> Le mar. 27 juin 2017 à 08:12, Anshum Gupta <ansh...@apple.com 
>> <mailto:ansh...@apple.com>> a écrit :
>> Without making any changes at all and just bumping up the version, I hit 
>> these errors when running the tests:
>> 
>>    [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestSegmentInfos 
>> -Dtests.method=testIllegalCreatedVersion -Dtests.seed=C818A61FA6C293A1 
>> -Dtests.slow=true -Dtests.locale=es-PR -Dtests.timezone=Etc/GMT+4 
>> -Dtests.asserts=true -Dtests.file.encoding=US-ASCII
>>    [junit4] FAILURE 0.01s J0 | TestSegmentInfos.testIllegalCreatedVersion <<<
>>    [junit4]    > Throwable #1: junit.framework.AssertionFailedError: 
>> Expected exception IllegalArgumentException but no exception was thrown
>>    [junit4]    >     at 
>> __randomizedtesting.SeedInfo.seed([C818A61FA6C293A1:CE340683BE44C211]:0)
>>    [junit4]    >     at 
>> org.apache.lucene.util.LuceneTestCase.expectThrows(LuceneTestCase.java:2672)
>>    [junit4]    >     at 
>> org.apache.lucene.index.TestSegmentInfos.testIllegalCreatedVersion(TestSegmentInfos.java:35)
>>    [junit4]    >     at java.lang.Thread.run(Thread.java:748)
>>    [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestSegmentInfos 
>> -Dtests.method=testVersionsOneSegment -Dtests.seed=C818A61FA6C293A1 
>> -Dtests.slow=true -Dtests.locale=es-PR -Dtests.timezone=Etc/GMT+4 
>> -Dtests.asserts=true -Dtests.file.encoding=US-ASCII
>>    [junit4] ERROR   0.00s J0 | TestSegmentInfos.testVersionsOneSegment <<<
>>    [junit4]    > Throwable #1: 
>> org.apache.lucene.index.CorruptIndexException: segments file recorded 
>> indexCreatedVersionMajor=8 but segment=_0(7.0.0):C1 has older version=7.0.0 
>> (resource=BufferedChecksumIndexInput(MockIndexInputWrapper(RAMInputStream(name=segments_1))))
>>    [junit4]    >     at 
>> __randomizedtesting.SeedInfo.seed([C818A61FA6C293A1:A7477EE8875F2E36]:0)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:392)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:293)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:443)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:440)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:692)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:644)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos.readLatestCommit(SegmentInfos.java:445)
>>    [junit4]    >     at 
>> org.apache.lucene.index.TestSegmentInfos.testVersionsOneSegment(TestSegmentInfos.java:67)
>>    [junit4]    >     at java.lang.Thread.run(Thread.java:748)
>>    [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestSegmentInfos 
>> -Dtests.method=testVersionsTwoSegments -Dtests.seed=C818A61FA6C293A1 
>> -Dtests.slow=true -Dtests.locale=es-PR -Dtests.timezone=Etc/GMT+4 
>> -Dtests.asserts=true -Dtests.file.encoding=US-ASCII
>>    [junit4] ERROR   0.00s J0 | TestSegmentInfos.testVersionsTwoSegments <<<
>>    [junit4]    > Throwable #1: 
>> org.apache.lucene.index.CorruptIndexException: segments file recorded 
>> indexCreatedVersionMajor=8 but segment=_0(7.0.0):C1 has older version=7.0.0 
>> (resource=BufferedChecksumIndexInput(MockIndexInputWrapper(RAMInputStream(name=segments_1))))
>>    [junit4]    >     at 
>> __randomizedtesting.SeedInfo.seed([C818A61FA6C293A1:4EE9CC4194FBB648]:0)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:392)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:293)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:443)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:440)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:692)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:644)
>>    [junit4]    >     at 
>> org.apache.lucene.index.SegmentInfos.readLatestCommit(SegmentInfos.java:445)
>>    [junit4]    >     at 
>> org.apache.lucene.index.TestSegmentInfos.testVersionsTwoSegments(TestSegmentInfos.java:96)
>>    [junit4]    >     at java.lang.Thread.run(Thread.java:748)
>> 
>> On applying the patch here (https://pastebin.com/tM4Fpy1Q 
>> <https://pastebin.com/tM4Fpy1Q>), I end up with the following errors:
>> 
>>    [junit4] Tests with failures [seed: 5B388AB1E2BEFF87]:
>>    [junit4]   - 
>> org.apache.lucene.search.similarities.TestSimilarityBase.testLengthEncodingBackwardCompatibility
>>    [junit4]   - 
>> org.apache.lucene.search.similarities.TestClassicSimilarity.testNormEncodingBackwardCompatibility
>>    [junit4]   - 
>> org.apache.lucene.index.TestSegmentInfos.testIllegalCreatedVersion
>>    [junit4]   - 
>> org.apache.lucene.search.similarities.TestBM25Similarity.testLengthEncodingBackwardCompatibility
>> 
>> Any ideas on what I’m missing here? 
>> 
>> 
>> -Anshum
>> 
>> 
>> 
>>> On Jun 26, 2017, at 2:55 PM, Ryan Ernst <r...@iernst.net 
>>> <mailto:r...@iernst.net>> wrote:
>>> 
>>> After changing that constant check, do you get the same test failures? What 
>>> are the actual failure messages?
>>> 
>>> On Mon, Jun 26, 2017 at 10:38 AM Anshum Gupta <ans...@anshumgupta.net 
>>> <mailto:ans...@anshumgupta.net>> wrote:
>>> Thanks Adrien, sadly, the tests aren't passing. That's the reason why I 
>>> didn't push the changes. I'll see if someone else can help while you're 
>>> away.
>>> 
>>> -Anshum
>>> 
>>> On Mon, Jun 26, 2017 at 9:55 AM Adrien Grand <jpou...@gmail.com 
>>> <mailto:jpou...@gmail.com>> wrote:
>>> Your proposed change looks correct to me. As far as whether other changes 
>>> are required, I'm currently traveling but can look when I'm back on 
>>> Thursday. Feel free to push the branches if tests are passing, we can fix 
>>> things later?
>>> 
>>> Le lun. 26 juin 2017 à 07:13, Anshum Gupta <ans...@anshumgupta.net 
>>> <mailto:ans...@anshumgupta.net>> a écrit :
>>> The only throw case that I think needs changing is in SegmentInfos.java L315
>>> Version luceneVersion = Version.fromBits(input.readVInt(), 
>>> input.readVInt(), input.readVInt());
>>> if (luceneVersion.onOrAfter(Version.LUCENE_7_0_0) == false) {
>>>   // TODO: should we check indexCreatedVersion instead?
>>>   throw new IndexFormatTooOldException(input, "this index is too old 
>>> (version: " + luceneVersion + ")");
>>> }
>>> 
>>> The Lucene version here should be LUCENE_7_0_0, instead of the original 
>>> LUCENE_6_0_0. 
>>> 
>>> Is there anything else that's needed (and is this the correct change?).
>>> 
>>> -Anshum
>>> 
>>> 
>>> On Sun, Jun 25, 2017 at 9:45 PM Anshum Gupta <ans...@anshumgupta.net 
>>> <mailto:ans...@anshumgupta.net>> wrote:
>>> Hi,
>>> 
>>> I am working on creating the 7x, and 7.0 branches but I have the following 
>>> failing tests:
>>>    [junit4] Tests with failures [seed: 4FBDDCD3F96316D3]:
>>>    [junit4]   - 
>>> org.apache.lucene.index.TestSegmentInfos.testVersionsTwoSegments
>>>    [junit4]   - 
>>> org.apache.lucene.index.TestSegmentInfos.testIllegalCreatedVersion
>>>    [junit4]   - 
>>> org.apache.lucene.index.TestSegmentInfos.testVersionsOneSegment
>>> 
>>> I assume this is a result of me not doing anything about the following TODO 
>>> that got printed when I ran addVersion.py.
>>> TODO
>>>   - Update IndexFormatTooOldException throw cases
>>> 
>>> Can someone shed more light on what needs to be done here?
>>> 
>>> -Anshum
>> 
> 

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