Bianca Stanciu created CASSANALYTICS-183:
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Summary: Mixed-case keyspace restore fails with "Keyspace does not
exist" when quoteIdentifiers is set
Key: CASSANALYTICS-183
URL: https://issues.apache.org/jira/browse/CASSANALYTICS-183
Project: Apache Cassandra Analytics
Issue Type: Improvement
Components: Writer
Reporter: Bianca Stanciu
Assignee: Bianca Stanciu
+_*Problem*_+
When a Cassandra keyspace or table is created with CQL double-quotes {*}(e.g.
CREATE KEYSPACE "MyKeyspace"){*}, the name is case-sensitive and stored as-is
internally. The QualifiedTableName class holds the raw name without quote
context. All Sidecar REST API calls in *CloudStorageDataTransferApiImpl* and
*CoordinatedCloudStorageDataTransferApi* were passing the unquoted name
(MyKeyspace) in the HTTP request payload.
On the Sidecar side, that raw name is passed to the DataStax driver's
{*}Metadata.getKeyspace(){*}, which case-folds it to {_}*mykeyspace*{_}, a name
that does not exist in the cluster. The restore job then fails with:
*▎ Keyspace does not exist: MyKeyspace*
+_*Root Cause*_+
*CloudStorageDataTransferApiImpl* (and its coordinated variant) called
*qualifiedTableName.keyspace() / qualifiedTableName.table()* directly when
building API requests. These return the raw stored name with no CQL quoting
applied, regardless of whether quoteIdentifiers was set by the caller.
+_*Solution*_+
Added *maybeQuotedKeyspace()* and *maybeQuotedTable()* convenience methods to
{*}QualifiedTableName{*}. These wrap the existing *maybeQuote()* helper and
return the name surrounded by CQL double-quotes when
{_}*quoteIdentifiers=true*{_}, or the plain name otherwise.
All restore job API call sites in *CloudStorageDataTransferApiImpl* and
*CoordinatedCloudStorageDataTransferApi* will be updated to use these methods:
- createRestoreJob
- restoreJobSummary
- updateRestoreJob
- abortRestoreJob
- CreateRestoreJobSliceRequest (both direct and coordinated)
- RestoreJobProgressRequestParams
*Dependencies*
This change ensures the correct quoted name is sent in the request;
CASSSIDECAR-475 ensures Sidecar resolves it correctly on lookup.
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