[ https://issues.apache.org/jira/browse/CASSANDRA-3511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis reopened CASSANDRA-3511: --------------------------------------- On closer look only row cache is being populated, not key cache. > Supercolumn key caches are not saved > ------------------------------------ > > Key: CASSANDRA-3511 > URL: https://issues.apache.org/jira/browse/CASSANDRA-3511 > Project: Cassandra > Issue Type: Bug > Components: Core > Affects Versions: 1.0.2, 1.0.3 > Reporter: Radim Kolar > Priority: Minor > Labels: supercolumns > > cache saving seems to be broken in 1.0.2 and 1.0.3 i have 2 CF in keyspace > with enabled cache saving and only one gets its key cache saved. It worked > perfectly in 0.8, both were saved. > This one works: > create column family query2 > with column_type = 'Standard' > and comparator = 'AsciiType' > and default_validation_class = 'BytesType' > and key_validation_class = 'UTF8Type' > and rows_cached = 500.0 > and row_cache_save_period = 0 > and row_cache_keys_to_save = 2147483647 > and keys_cached = 200000.0 > and key_cache_save_period = 14400 > and read_repair_chance = 1.0 > and gc_grace = 864000 > and min_compaction_threshold = 5 > and max_compaction_threshold = 10 > and replicate_on_write = false > and row_cache_provider = 'ConcurrentLinkedHashCacheProvider' > and compaction_strategy = > 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy' > This does not > create column family dkb13 > with column_type = 'Super' > and comparator = 'LongType' > and subcomparator = 'AsciiType' > and default_validation_class = 'BytesType' > and key_validation_class = 'UTF8Type' > and rows_cached = 600.0 > and row_cache_save_period = 0 > and row_cache_keys_to_save = 2147483647 > and keys_cached = 200000.0 > and key_cache_save_period = 14400 > and read_repair_chance = 1.0 > and gc_grace = 864000 > and min_compaction_threshold = 5 > and max_compaction_threshold = 10 > and replicate_on_write = false > and row_cache_provider = 'ConcurrentLinkedHashCacheProvider' > and compaction_strategy = > 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy' > in second test system i created these 2 column families and none of them got > single cache key saved. Both have save period 30 seoonds - their cache should > save often. Its not that standard column family works while super does not. > create column family test1 > with column_type = 'Standard' > and comparator = 'BytesType' > and default_validation_class = 'BytesType' > and key_validation_class = 'BytesType' > and rows_cached = 0.0 > and row_cache_save_period = 0 > and row_cache_keys_to_save = 2147483647 > and keys_cached = 200000.0 > and key_cache_save_period = 30 > and read_repair_chance = 1.0 > and gc_grace = 864000 > and min_compaction_threshold = 4 > and max_compaction_threshold = 32 > and replicate_on_write = true > and row_cache_provider = 'SerializingCacheProvider' > and compaction_strategy = > 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'; > create column family test2 > with column_type = 'Standard' > and comparator = 'BytesType' > and default_validation_class = 'BytesType' > and key_validation_class = 'BytesType' > and rows_cached = 0.0 > and row_cache_save_period = 0 > and row_cache_keys_to_save = 2147483647 > and keys_cached = 200000.0 > and key_cache_save_period = 30 > and read_repair_chance = 1.0 > and gc_grace = 864000 > and min_compaction_threshold = 4 > and max_compaction_threshold = 32 > and replicate_on_write = true > and row_cache_provider = 'SerializingCacheProvider' > and compaction_strategy = > 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'; > If this is done on purpose for example cassandra 1.0 is doing some heuristic > decision if cache should be saved or not then it should be removed. Saving > cache is fast. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira