org.apache.cassandra.tools.nodetool.GarbageCollect Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of cassandra-all Show documentation
Show all versions of cassandra-all Show documentation
The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.tools.nodetool;
import io.airlift.command.Arguments;
import io.airlift.command.Command;
import io.airlift.command.Option;
import java.util.ArrayList;
import java.util.List;
import org.apache.cassandra.tools.NodeProbe;
import org.apache.cassandra.tools.NodeTool.NodeToolCmd;
@Command(name = "garbagecollect", description = "Remove deleted data from one or more tables")
public class GarbageCollect extends NodeToolCmd
{
@Arguments(usage = "[ ...]", description = "The keyspace followed by one or many tables")
private List args = new ArrayList<>();
@Option(title = "granularity",
name = {"-g", "--granularity"},
allowedValues = {"ROW", "CELL"},
description = "Granularity of garbage removal. ROW (default) removes deleted partitions and rows, CELL also removes overwritten or deleted cells.")
private String tombstoneOption = "ROW";
@Option(title = "jobs",
name = {"-j", "--jobs"},
description = "Number of sstables to cleanup simultanously, set to 0 to use all available compaction threads")
private int jobs = 2;
@Override
public void execute(NodeProbe probe)
{
List keyspaces = parseOptionalKeyspace(args, probe);
String[] tableNames = parseOptionalTables(args);
for (String keyspace : keyspaces)
{
try
{
probe.garbageCollect(System.out, tombstoneOption, jobs, keyspace, tableNames);
} catch (Exception e)
{
throw new RuntimeException("Error occurred during garbage collection", e);
}
}
}
}