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https://issues.apache.org/jira/browse/OAK-7855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16660318#comment-16660318
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Marcel Reutegger commented on OAK-7855:
---------------------------------------
Added an ignored test to trunk that reproduces the issue:
http://svn.apache.org/r1844625
The issue is triggered by a combination of:
- Schema upgrade from level 1 to level 2 must fail, e.g. DB user does not have
permission to do so. The RDBDocumentStore is designed to still work fine if a
schema upgrade is not possible. This means, there's no bug here.
- Updating a document sets the schema level unconditionally to the most recent
value.
- Reading an updated RDBRow will default to a SplitDocType with value 0. This
is what Julian's patch addresses.
Eliminating any of the three items will likely address the issue as well.
> Invalid SplitDocType
> --------------------
>
> Key: OAK-7855
> URL: https://issues.apache.org/jira/browse/OAK-7855
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: documentmk, rdbmk
> Affects Versions: 1.8.7
> Reporter: Marcel Reutegger
> Assignee: Marcel Reutegger
> Priority: Blocker
> Fix For: 1.10, 1.8.9, 1.9.10
>
> Attachments: OAK-7855.diff
>
>
> After upgrading a repository from 1.8.2 to 1.8.7 on RDB the background update
> thread started to log warnings that complain about invalid SplitDocType:
> {noformat}
> java.lang.IllegalArgumentException: Not a valid SplitDocType :0
> {noformat}
> It is also worth noting that the automatic database schema upgrade fails on
> that repository with:
> {noformat}
> org.apache.jackrabbit.oak.plugins.document.rdb.RDBDocumentStore Attempted to
> upgrade NODES to DB level 2 using 'alter table NODES add SDTYPE smallint',
> but failed - will continue without.
> com.ibm.db2.jcc.am.SqlSyntaxErrorException: DB2 SQL Error: SQLCODE=-551,
> SQLSTATE=42501, SQLERRMC=Q1D18T05;ALTER TABLE;G031.NODES, DRIVER=4.23.42
> {noformat}
> and
> {noformat}
> org.apache.jackrabbit.oak.plugins.document.rdb.RDBDocumentStore Attempted to
> upgrade NODES to DB level 2 using 'create index NODES_SDT on NODES (SDTYPE)
> exclude null keys', but failed - will continue without.
> com.ibm.db2.jcc.am.SqlSyntaxErrorException: DB2 SQL Error: SQLCODE=-205,
> SQLSTATE=42703, SQLERRMC=SDTYPE;G031.NODES, DRIVER=4.23.42
> {noformat}
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