[
https://issues.apache.org/jira/browse/CASSANDRA-13005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15725518#comment-15725518
]
Christian Esken commented on CASSANDRA-13005:
---------------------------------------------
I changed the sstabledump to list the metadata types, and it looks like only
STATS are there, and not even the HEADER:
{code}
# tools/bin/sstabledump mc-53346-big-Data.db
sstableMetadata Map:
{STATS=org.apache.cassandra.io.sstable.metadata.StatsMetadata@ea892389}
{code}
{code}
public static CFMetaData metadataFromSSTable(Descriptor desc) throws
IOException
{
if (!desc.version.storeRows())
throw new IOException("pre-3.0 SSTable is not supported.");
EnumSet<MetadataType> types = EnumSet.of(MetadataType.STATS,
MetadataType.HEADER);
Map<MetadataType, MetadataComponent> sstableMetadata =
desc.getMetadataSerializer().deserialize(desc, types);
System.out.println("sstableMetadata Map: " + sstableMetadata); // List
metadata types
{code}
> Cassandra TWCS is not removing fully expired tables
> ---------------------------------------------------
>
> Key: CASSANDRA-13005
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13005
> Project: Cassandra
> Issue Type: Bug
> Components: Compaction
> Environment: Cassandra 3.0.9 / Casandra 3.9
> Java HotSpot(TM) 64-Bit Server VM version 25.112-b15 (Java version
> 1.8.0_112-b15)
> Linux 3.16
> Reporter: Christian Esken
> Attachments: sstablemetadata-empty-type-that-is-3GB.txt
>
>
> We have a table where all columns are stored with TTL of maximum 4 hours.
> Usually TWCS compaction properly removes expired data via tombstone
> compaction and also removes fully expired tables. The number of SSTables is
> nearly constant since weeks. Good.
> The problem: Suddenly TWCS does not remove old SSTables any longer. They are
> being recreated frequently (judging form the file creation timestamp), but
> the number of tables is growing.
> - sstablemetadata shows strange data, as if the table is completely empty.
> - sstabledump throws an Exception when running it on such a SSTable
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
