mirror of https://github.com/apache/cassandra
Merge branch 'cassandra-2.2' into cassandra-3.0
Conflicts: test/unit/org/apache/cassandra/db/compaction/TTLExpiryTest.java
This commit is contained in:
Marcus Eriksson
commit
213aab8c1f
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@ -84,6 +84,7 @@ Merged from 2.1:
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* (cqlsh) Allow the SSL protocol version to be specified through the
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config file or environment variables (CASSANDRA-9544)
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Merged from 2.0:
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* Add tool to find why expired sstables are not getting dropped (CASSANDRA-10015)
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* Remove erroneous pending HH tasks from tpstats/jmx (CASSANDRA-9129)
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* Don't cast expected bf size to an int (CASSANDRA-9959)
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* checkForEndpointCollision fails for legitimate collisions (CASSANDRA-9765)
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@ -0,0 +1,136 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.tools;
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import java.io.IOException;
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import java.io.PrintStream;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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import com.google.common.base.Throwables;
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import com.google.common.collect.ArrayListMultimap;
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import com.google.common.collect.Multimap;
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import org.apache.cassandra.config.CFMetaData;
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import org.apache.cassandra.config.DatabaseDescriptor;
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import org.apache.cassandra.config.Schema;
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import org.apache.cassandra.db.ColumnFamilyStore;
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import org.apache.cassandra.db.Directories;
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import org.apache.cassandra.db.Keyspace;
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import org.apache.cassandra.io.sstable.Component;
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import org.apache.cassandra.io.sstable.Descriptor;
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import org.apache.cassandra.io.sstable.format.SSTableReader;
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/**
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* During compaction we can drop entire sstables if they only contain expired tombstones and if it is guaranteed
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* to not cover anything in other sstables. An expired sstable can be blocked from getting dropped if its newest
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* timestamp is newer than the oldest data in another sstable.
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*
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* This class outputs all sstables that are blocking other sstables from getting dropped so that a user can
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* figure out why certain sstables are still on disk.
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*/
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public class SSTableExpiredBlockers
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{
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public static void main(String[] args) throws IOException
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{
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PrintStream out = System.out;
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if (args.length < 2)
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{
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out.println("Usage: sstableexpiredblockers <keyspace> <table>");
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System.exit(1);
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}
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String keyspace = args[args.length - 2];
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String columnfamily = args[args.length - 1];
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Schema.instance.loadFromDisk(false);
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CFMetaData metadata = Schema.instance.getCFMetaData(keyspace, columnfamily);
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if (metadata == null)
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throw new IllegalArgumentException(String.format("Unknown keyspace/table %s.%s",
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keyspace,
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columnfamily));
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Keyspace ks = Keyspace.openWithoutSSTables(keyspace);
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ColumnFamilyStore cfs = ks.getColumnFamilyStore(columnfamily);
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Directories.SSTableLister lister = cfs.directories.sstableLister().skipTemporary(true);
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Set<SSTableReader> sstables = new HashSet<>();
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for (Map.Entry<Descriptor, Set<Component>> sstable : lister.list().entrySet())
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{
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if (sstable.getKey() != null)
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{
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try
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{
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SSTableReader reader = SSTableReader.open(sstable.getKey());
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sstables.add(reader);
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}
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catch (Throwable t)
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{
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out.println("Couldn't open sstable: " + sstable.getKey().filenameFor(Component.DATA));
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Throwables.propagate(t);
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}
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}
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}
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if (sstables.isEmpty())
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{
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out.println("No sstables for " + keyspace + "." + columnfamily);
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System.exit(1);
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}
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int gcBefore = (int)(System.currentTimeMillis()/1000) - metadata.params.gcGraceSeconds;
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Multimap<SSTableReader, SSTableReader> blockers = checkForExpiredSSTableBlockers(sstables, gcBefore);
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for (SSTableReader blocker : blockers.keySet())
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{
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out.println(String.format("%s blocks %d expired sstables from getting dropped: %s%n",
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formatForExpiryTracing(Collections.singleton(blocker)),
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blockers.get(blocker).size(),
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formatForExpiryTracing(blockers.get(blocker))));
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}
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System.exit(0);
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}
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public static Multimap<SSTableReader, SSTableReader> checkForExpiredSSTableBlockers(Iterable<SSTableReader> sstables, int gcBefore)
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{
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Multimap<SSTableReader, SSTableReader> blockers = ArrayListMultimap.create();
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for (SSTableReader sstable : sstables)
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{
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if (sstable.getSSTableMetadata().maxLocalDeletionTime < gcBefore)
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{
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for (SSTableReader potentialBlocker : sstables)
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{
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if (!potentialBlocker.equals(sstable) &&
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potentialBlocker.getMinTimestamp() <= sstable.getMaxTimestamp() &&
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potentialBlocker.getSSTableMetadata().maxLocalDeletionTime > gcBefore)
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blockers.put(potentialBlocker, sstable);
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}
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}
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}
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return blockers;
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}
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private static String formatForExpiryTracing(Iterable<SSTableReader> sstables)
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{
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StringBuilder sb = new StringBuilder();
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for (SSTableReader sstable : sstables)
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sb.append(String.format("[%s (minTS = %d, maxTS = %d, maxLDT = %d)]", sstable, sstable.getMinTimestamp(), sstable.getMaxTimestamp(), sstable.getSSTableMetadata().maxLocalDeletionTime)).append(", ");
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return sb.toString();
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}
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}
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@ -19,10 +19,12 @@
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package org.apache.cassandra.db.compaction;
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import org.apache.cassandra.config.CFMetaData;
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import org.apache.cassandra.db.lifecycle.SSTableSet;
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import org.apache.cassandra.db.rows.UnfilteredRowIterator;
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import org.apache.cassandra.db.marshal.AsciiType;
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import org.apache.cassandra.io.sstable.format.SSTableReader;
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import org.junit.BeforeClass;
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import com.google.common.collect.Multimap;
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import com.google.common.collect.Sets;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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@ -35,6 +37,7 @@ import org.apache.cassandra.db.filter.ColumnFilter;
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import org.apache.cassandra.exceptions.ConfigurationException;
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import org.apache.cassandra.io.sstable.ISSTableScanner;
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import org.apache.cassandra.schema.KeyspaceParams;
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import org.apache.cassandra.tools.SSTableExpiredBlockers;
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import org.apache.cassandra.utils.ByteBufferUtil;
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import java.io.IOException;
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@ -224,4 +227,33 @@ public class TTLExpiryTest
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}
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scanner.close();
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}
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@Test
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public void testCheckForExpiredSSTableBlockers() throws InterruptedException
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{
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ColumnFamilyStore cfs = Keyspace.open(KEYSPACE1).getColumnFamilyStore("Standard1");
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cfs.truncateBlocking();
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cfs.disableAutoCompaction();
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cfs.metadata.gcGraceSeconds(0);
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new RowUpdateBuilder(cfs.metadata, System.currentTimeMillis(), "test")
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.add("col1", ByteBufferUtil.EMPTY_BYTE_BUFFER)
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.build()
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.applyUnsafe();
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cfs.forceBlockingFlush();
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SSTableReader blockingSSTable = cfs.getSSTables(SSTableSet.LIVE).iterator().next();
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for (int i = 0; i < 10; i++)
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{
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new RowUpdateBuilder(cfs.metadata, System.currentTimeMillis(), "test")
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.delete("col1")
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.build()
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.applyUnsafe();
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cfs.forceBlockingFlush();
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}
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Multimap<SSTableReader, SSTableReader> blockers = SSTableExpiredBlockers.checkForExpiredSSTableBlockers(cfs.getSSTables(SSTableSet.LIVE), (int) (System.currentTimeMillis() / 1000) + 100);
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assertEquals(1, blockers.keySet().size());
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assertTrue(blockers.keySet().contains(blockingSSTable));
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assertEquals(10, blockers.get(blockingSSTable).size());
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}
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}
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@ -0,0 +1,54 @@
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#!/bin/sh
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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if [ "x$CASSANDRA_INCLUDE" = "x" ]; then
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for include in /usr/share/cassandra/cassandra.in.sh \
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/usr/local/share/cassandra/cassandra.in.sh \
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/opt/cassandra/cassandra.in.sh \
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~/.cassandra.in.sh \
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"`dirname "$0"`/cassandra.in.sh"; do
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if [ -r "$include" ]; then
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. "$include"
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break
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fi
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done
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elif [ -r "$CASSANDRA_INCLUDE" ]; then
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. "$CASSANDRA_INCLUDE"
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fi
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# Use JAVA_HOME if set, otherwise look for java in PATH
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if [ -x "$JAVA_HOME/bin/java" ]; then
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JAVA="$JAVA_HOME/bin/java"
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else
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JAVA="`which java`"
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fi
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if [ -z "$CLASSPATH" ]; then
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echo "You must set the CLASSPATH var" >&2
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exit 1
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fi
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if [ "x$MAX_HEAP_SIZE" = "x" ]; then
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MAX_HEAP_SIZE="256M"
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fi
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"$JAVA" $JAVA_AGENT -ea -cp "$CLASSPATH" -Xmx$MAX_HEAP_SIZE \
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-Dcassandra.storagedir="$cassandra_storagedir" \
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-Dlogback.configurationFile=logback-tools.xml \
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org.apache.cassandra.tools.SSTableExpiredBlockers "$@"
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@ -0,0 +1,23 @@
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@REM Licensed to the Apache Software Foundation (ASF) under one or more
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@REM contributor license agreements. See the NOTICE file distributed with
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@REM this work for additional information regarding copyright ownership.
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@REM The ASF licenses this file to You under the Apache License, Version 2.0
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@REM (the "License"); you may not use this file except in compliance with
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@REM the License. You may obtain a copy of the License at
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@REM
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@REM http://www.apache.org/licenses/LICENSE-2.0
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@REM
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@REM Unless required by applicable law or agreed to in writing, software
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@REM distributed under the License is distributed on an "AS IS" BASIS,
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@REM WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
@REM See the License for the specific language governing permissions and
|
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@REM limitations under the License.
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@echo off
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if "%OS%" == "Windows_NT" setlocal
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pushd "%~dp0"
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call cassandra.in.bat
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"%JAVA_HOME%\bin\java" -cp %CLASSPATH% org.apache.cassandra.tools.SSTableExpiredBlockers %*
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