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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.maintenance;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.jdisc.test.TestTimer;
import com.yahoo.vespa.hosted.node.admin.configserver.noderepository.NodeSpec;
import com.yahoo.vespa.hosted.node.admin.maintenance.coredump.CoredumpHandler;
import com.yahoo.vespa.hosted.node.admin.maintenance.disk.DiskCleanup;
import com.yahoo.vespa.hosted.node.admin.maintenance.sync.SyncClient;
import com.yahoo.vespa.hosted.node.admin.nodeagent.NodeAgentContext;
import com.yahoo.vespa.hosted.node.admin.nodeagent.NodeAgentContextImpl;
import com.yahoo.vespa.hosted.node.admin.task.util.file.DiskSize;
import com.yahoo.vespa.hosted.node.admin.task.util.file.FileFinder;
import com.yahoo.vespa.hosted.node.admin.task.util.fs.ContainerPath;
import com.yahoo.vespa.hosted.node.admin.task.util.process.TestTerminal;
import com.yahoo.vespa.test.file.TestFileSystem;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.nio.file.FileSystem;
import java.nio.file.Files;
import java.nio.file.Path;
import java.time.Duration;
import java.time.Instant;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoInteractions;
/**
* @author dybis
*/
public class StorageMaintainerTest {
private final TestTerminal terminal = new TestTerminal();
private final CoredumpHandler coredumpHandler = mock(CoredumpHandler.class);
private final DiskCleanup diskCleanup = mock(DiskCleanup.class);
private final SyncClient syncClient = mock(SyncClient.class);
private final TestTimer timer = new TestTimer(Instant.ofEpochSecond(1234567890));
private final FileSystem fileSystem = TestFileSystem.create();
private final StorageMaintainer storageMaintainer = new StorageMaintainer(terminal, coredumpHandler, diskCleanup, syncClient, timer,
fileSystem.getPath("/data/vespa/storage/container-archive"));
@Test
void testDiskUsed() {
NodeAgentContext context = NodeAgentContextImpl.builder("host-1.domain.tld").fileSystem(fileSystem).build();
terminal.expectCommand("du -xsk /data/vespa/storage/host-1 2>&1", 0, "321\t/data/vespa/storage/host-1/");
assertEquals(Optional.of(DiskSize.of(328_704)), storageMaintainer.diskUsageFor(context));
// Value should still be cached, no new execution against the terminal
assertEquals(Optional.of(DiskSize.of(328_704)), storageMaintainer.diskUsageFor(context));
}
@Test
void testNonExistingDiskUsed() {
DiskSize size = storageMaintainer.getDiskUsed(null, Path.of("/fake/path"));
assertEquals(DiskSize.ZERO, size);
}
@Test
void archive_container_data_test() throws IOException {
// Create some files in containers
NodeAgentContext context1 = createNodeAgentContextAndContainerStorage(fileSystem, "container-1");
createNodeAgentContextAndContainerStorage(fileSystem, "container-2");
Path pathToArchiveDir = fileSystem.getPath("/data/vespa/storage/container-archive");
Files.createDirectories(pathToArchiveDir);
Path containerStorageRoot = context1.paths().of("/").pathOnHost().getParent();
Set<String> containerStorageRootContentsBeforeArchive = FileFinder.from(containerStorageRoot)
.maxDepth(1)
.stream()
.map(FileFinder.FileAttributes::filename)
.collect(Collectors.toSet());
assertEquals(Set.of("container-archive", "container-1", "container-2"), containerStorageRootContentsBeforeArchive);
// Archive container-1
storageMaintainer.archiveNodeStorage(context1);
timer.advance(Duration.ofSeconds(3));
storageMaintainer.archiveNodeStorage(context1);
// container-1 should be gone from container-storage
Set<String> containerStorageRootContentsAfterArchive = FileFinder.from(containerStorageRoot)
.maxDepth(1)
.stream()
.map(FileFinder.FileAttributes::filename)
.collect(Collectors.toSet());
assertEquals(Set.of("container-archive", "container-2"), containerStorageRootContentsAfterArchive);
// container archive directory should contain exactly 1 directory - the one we just archived
List<FileFinder.FileAttributes> containerArchiveContentsAfterArchive = FileFinder.from(pathToArchiveDir).maxDepth(1).list();
assertEquals(1, containerArchiveContentsAfterArchive.size());
Path archivedContainerStoragePath = containerArchiveContentsAfterArchive.get(0).path();
assertEquals("container-1_20090213233130", archivedContainerStoragePath.getFileName().toString());
Set<String> archivedContainerStorageContents = FileFinder.files(archivedContainerStoragePath)
.stream()
.map(fileAttributes -> archivedContainerStoragePath.relativize(fileAttributes.path()).toString())
.collect(Collectors.toSet());
assertEquals(Set.of("opt/vespa/logs/vespa/vespa.log", "opt/vespa/logs/vespa/zookeeper.log"), archivedContainerStorageContents);
}
private static NodeAgentContext createNodeAgentContextAndContainerStorage(FileSystem fileSystem, String containerName) throws IOException {
NodeAgentContext context = NodeAgentContextImpl.builder(containerName + ".domain.tld")
.fileSystem(fileSystem).build();
ContainerPath containerVespaHome = context.paths().underVespaHome("");
Files.createDirectories(context.paths().of("/etc/something"));
Files.createFile(context.paths().of("/etc/something/conf"));
Files.createDirectories(containerVespaHome.resolve("logs/vespa"));
Files.createFile(containerVespaHome.resolve("logs/vespa/vespa.log"));
Files.createFile(containerVespaHome.resolve("logs/vespa/zookeeper.log"));
Files.createDirectories(containerVespaHome.resolve("var/db"));
Files.createFile(containerVespaHome.resolve("var/db/some-file"));
Files.createDirectories(containerVespaHome.resolve("var/tmp"));
Files.createFile(containerVespaHome.resolve("var/tmp/some-file"));
ContainerPath containerRoot = context.paths().of("/");
Set<String> actualContents = FileFinder.files(containerRoot)
.stream()
.map(fileAttributes -> containerRoot.relativize(fileAttributes.path()).toString())
.collect(Collectors.toSet());
Set<String> expectedContents = Set.of(
"etc/something/conf",
"opt/vespa/logs/vespa/vespa.log",
"opt/vespa/logs/vespa/zookeeper.log",
"opt/vespa/var/tmp/some-file",
"opt/vespa/var/db/some-file");
assertEquals(expectedContents, actualContents);
return context;
}
@Test
void not_run_if_not_enough_used() {
NodeAgentContext context = NodeAgentContextImpl.builder(
NodeSpec.Builder.testSpec("h123a.domain.tld").realResources(new NodeResources(1, 1, 1, 1)).build())
.fileSystem(fileSystem).build();
mockDiskUsage(500L);
storageMaintainer.cleanDiskIfFull(context);
verifyNoInteractions(diskCleanup);
}
@Test
void deletes_correct_amount() {
NodeAgentContext context = NodeAgentContextImpl.builder(
NodeSpec.Builder.testSpec("h123a.domain.tld").realResources(new NodeResources(1, 1, 1, 1)).build())
.fileSystem(fileSystem).build();
mockDiskUsage(950_000L);
storageMaintainer.cleanDiskIfFull(context);
// Allocated size: 1 GB, usage: 950_000 kiB (972.8 MB). Wanted usage: 70% => 700 MB
verify(diskCleanup).cleanup(eq(context), any(), eq(272_800_000L));
}
@AfterEach
public void after() {
terminal.verifyAllCommandsExecuted();
}
private void mockDiskUsage(long kBytes) {
terminal.expectCommand("du -xsk /data/vespa/storage/h123a 2>&1", 0, kBytes + "\t/path");
}
}
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