[ https://issues.apache.org/jira/browse/CASSANDRA-14011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joshua McKenzie updated CASSANDRA-14011: ---------------------------------------- Component/s: Compaction > Multi threaded L0 -> L1 compaction > ---------------------------------- > > Key: CASSANDRA-14011 > URL: https://issues.apache.org/jira/browse/CASSANDRA-14011 > Project: Cassandra > Issue Type: Improvement > Components: Compaction > Reporter: Marcus Eriksson > Priority: Major > Fix For: 4.x > > > Currently L0 -> L1 compactions are almost always single threaded because > every L0 sstable will overlap with all L1 sstables. To improve this, we > should range-split the input sstables in a configurable amount of parts and > then use multiple threads to write out the results. This is similar to the > {{max_subcompactions}} option in RocksDB: > https://github.com/facebook/rocksdb/wiki/Leveled-Compaction -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org