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https://issues.apache.org/jira/browse/CASSANDRA-17698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17730947#comment-17730947
 ] 

Andres de la Peña commented on CASSANDRA-17698:
-----------------------------------------------

[~maxwellguo] the patch for trunk mostly looks good, but it doesn't check what 
sstable format version is being used.

Although there is a new "oa" version, and also the new trie format, the server 
can still be using an older format. In fact, the sstable format version depends 
on the recently added 
[storage_compatibility_mode|https://github.com/apache/cassandra/blob/trunk/conf/cassandra.yaml#L1979-L2004].
 That property defaults to {{CASSANDRA_4}} to keep the data readable for 
Cassandra 4. So the default sstable format version is still "nc" (see 
[here|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/io/sstable/format/big/BigFormat.java#L356]).
 The patch changes the meaning of the format, so if it's used on 5.0 with "na" 
format and {{CASSANDRA_4}} compatibility, the written data won't be readable 
for Cassandra 4.

I think we should simply add a check on {{CassandraIndex}} to preserve the old 
behaviour if {}DatabaseDescriptor.getStorageCompatibilityMode().isBefore(5){}.

All unit tests are run with "nc", "oa" and tries. So probably 
{{SecondaryIndexSSTableExportTest}} should also take into account the used 
sstable format.

As for CI, I'll run it with more resources when the compatibility issue is 
addressed.

> sstabledump errors when dumping data from index
> -----------------------------------------------
>
>                 Key: CASSANDRA-17698
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17698
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tool/sstable
>            Reporter: Stefan Miklosovic
>            Assignee: Maxwell Guo
>            Priority: Normal
>             Fix For: 5.x
>
>          Time Spent: 12h 40m
>  Remaining Estimate: 0h
>
> {code:java}
> cqlsh> CREATE KEYSPACE ks1 WITH replication = {'class': 'SimpleStrategy', 
> 'replication_factor': 1};
> cqlsh> CREATE TABLE ks1.tb1 ( id text, name text, primary key (id));
> cqlsh> CREATE INDEX IF NOT EXISTS ON ks1.tb1(name);
> cqlsh> INSERT INTO ks1.tb1 (id, name ) VALUES ( '1', 'Joe');
> cqlsh> exit
> ./bin/nodetool flush
> ./tools/bin/sstabledump 
> data/data/ks1/tb1-1c3c5f10ee4711ecab82eda2f44200b3/.tb1_name_idx/nb-1-big-Data.db
>  
> [
>   {
>     "partition" : {
>       "key" : [ "Joe" ],
>       "position" : 0
>     },
>     "rows" : [
>       {
>         "type" : "row",
>         "position" : 17,
>         "clustering" : [ ] } ] } ]Exception in thread "main" 
> java.lang.UnsupportedOperationException
>         at 
> org.apache.cassandra.db.marshal.PartitionerDefinedOrder.toJSONString(PartitionerDefinedOrder.java:87)
>         at 
> org.apache.cassandra.db.marshal.AbstractType.toJSONString(AbstractType.java:187)
>         at 
> org.apache.cassandra.tools.JsonTransformer.serializeClustering(JsonTransformer.java:372)
>         at 
> org.apache.cassandra.tools.JsonTransformer.serializeRow(JsonTransformer.java:269)
>         at 
> org.apache.cassandra.tools.JsonTransformer.serializePartition(JsonTransformer.java:235)
>         at 
> java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
>         at 
> java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
>         at java.util.Iterator.forEachRemaining(Iterator.java:116)
>         at 
> java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
>         at 
> java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
>         at 
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
>         at 
> java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
>         at 
> java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
>         at 
> java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
>         at 
> java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
>         at 
> org.apache.cassandra.tools.JsonTransformer.toJson(JsonTransformer.java:113)
>         at 
> org.apache.cassandra.tools.SSTableExport.main(SSTableExport.java:214) {code}



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