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https://issues.apache.org/jira/browse/CASSANDRA-10777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15030368#comment-15030368
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Nirav Thakkar edited comment on CASSANDRA-10777 at 11/28/15 6:45 AM:
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Sorry, but we dont have AWS instance which can be used. I am attaching the
screenshots of the file- Standard-jb-Summary(LE and BE) which is used for the
TestCase. The issue in the Test-case is while reading data as an integer, the
value comes out to be very large, which is not the case with LE(please see the
highlighted part in the attachment),and hence the assertion fails on BE system.
Also we created a sample table, and created SSTables using "flush keyspace",
and we observed difference in the file Standard-jb-Summary, for BE compared to
LE. Please check the attachment for the difference, we observed.
was (Author: nirav):
Sorry, but we dont have AWS instance which can be used, But We noticed couple
of difference in the file, if we use BIG-ENDian system as compared to
LITTLE-ENDian system. I am attaching the screenshots of the file-
IndexSummary(LE and BE) which is used for the TestCase. There is small
difference(BE vs LE) in the files if we create a keyspace and use "flush
keyspace" to obtain the SSTable Files.
The issue in the Test-case is while reading data as an integer, the value comes
out to be very large, and we subtract 32 and check if its zero,and hence the
assertion fails on BE system.
> LegacySSTableTest Test-case failure, Issue with
> test\data\legacy-sstables\jb\Keyspace1\Keyspace1-Standard1-jb-0-Summary.db
> file read on BIG ENDian systems
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-10777
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10777
> Project: Cassandra
> Issue Type: Bug
> Environment: OS:RHEL7 and BIG ENDian system
> Reporter: Nirav Thakkar
> Attachments: IndexSummaryBE.jpg, IndexSummaryLE.jpg
>
>
> I am building Cassandra 2.2.3 on BigEndian System. Cassandra builds
> successfully. However there are quite a few test case failures. One of the
> failing test case is LegacySSTableTest. This test case reads the file
> test\data\legacy-sstables\jb\Keyspace1\Keyspace1-Standard1-jb-0-Summary.db
> Are these existing test data files, specific to Little Endian systems?
> I have observed differences in values read on a LE Vs BE systems.
> I use the following command to run the test case. ant test
> -Dtest.name=LegacySSTableTest
> I get the following error:
> [junit] ------------- Standard Error -----------------
> [junit] Failed to read jb
> [junit] ------------- ---------------- ---------------
> [junit] Testcase:
> testStreaming(org.apache.cassandra.io.sstable.LegacySSTableTest): FAILED
> [junit] null
> [junit] junit.framework.AssertionFailedError
> [junit] at
> org.apache.cassandra.io.sstable.IndexSummary.<init>(IndexSummary.java:80)
> [junit] at
> org.apache.cassandra.io.sstable.IndexSummary$IndexSummarySerializer.deserialize(IndexSummary.java:317)
> [junit] at
> org.apache.cassandra.io.sstable.SSTableReader.loadSummary(SSTableReader.java:877)
> [junit] at
> org.apache.cassandra.io.sstable.SSTableReader.load(SSTableReader.java:730)
> [junit] at
> org.apache.cassandra.io.sstable.SSTableReader.load(SSTableReader.java:692)
> [junit] at
> org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:480)
> [junit] at
> org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:376)
> [junit] at
> org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:371)
> [junit] at
> org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:363)
> [junit] at
> org.apache.cassandra.io.sstable.LegacySSTableTest.testStreaming(LegacySSTableTest.java:115)
> [junit] at
> org.apache.cassandra.io.sstable.LegacySSTableTest.testStreaming(LegacySSTableTest.java:110)
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