[jira] [Updated] (CASSANDRA-9473) Introduce BTreeSet with support for in-place reversal
[ https://issues.apache.org/jira/browse/CASSANDRA-9473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aleksey Yeschenko updated CASSANDRA-9473: - Fix Version/s: (was: 3.x) Introduce BTreeSet with support for in-place reversal - Key: CASSANDRA-9473 URL: https://issues.apache.org/jira/browse/CASSANDRA-9473 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Benedict Assignee: Paulo Motta Priority: Minor Follow up to CASSANDRA-8099. We use TreeSet in a lot of places unnecessarily. This is especially a concern now that we store the set of rows we're searching for in both forward and (potentially) reverse order, which we have to construct twice. A very simple wrapper around BTree (which we had previously, but did not employ) would permit us to reverse this collection without any extra work, can be built more cheaply, consumes less memory, and supports the SearchIterator interface, so can be iterated more efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Updated] (CASSANDRA-9473) Introduce BTreeSet with support for in-place reversal
[ https://issues.apache.org/jira/browse/CASSANDRA-9473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jonathan Ellis updated CASSANDRA-9473: -- Assignee: Paulo Motta (was: Benedict) Introduce BTreeSet with support for in-place reversal - Key: CASSANDRA-9473 URL: https://issues.apache.org/jira/browse/CASSANDRA-9473 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Benedict Assignee: Paulo Motta Priority: Minor Fix For: 3.x Follow up to CASSANDRA-8099. We use TreeSet in a lot of places unnecessarily. This is especially a concern now that we store the set of rows we're searching for in both forward and (potentially) reverse order, which we have to construct twice. A very simple wrapper around BTree (which we had previously, but did not employ) would permit us to reverse this collection without any extra work, can be built more cheaply, consumes less memory, and supports the SearchIterator interface, so can be iterated more efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
