Examples with CoreClusterMember org.neo4j.causalclustering.discovery.CoreClusterMember used on opensource projects

Example 21 with CoreClusterMember

use of org.neo4j.causalclustering.discovery.CoreClusterMember in project neo4j by neo4j.

the class ClusterBindingIT method aNewServerShouldJoinTheClusterByDownloadingASnapshot.

@Test
public void aNewServerShouldJoinTheClusterByDownloadingASnapshot() throws Exception {
    // GIVEN
    cluster.coreTx((db, tx) -> {
        Node node = db.createNode(label("boo"));
        node.setProperty("foobar", "baz_bat");
        tx.success();
    });
    SampleData.createSomeData(100, cluster);
    for (CoreClusterMember db : cluster.coreMembers()) {
        db.coreState().prune();
    }
    // WHEN
    cluster.addCoreMemberWithId(4).start();
    cluster.awaitLeader();
    // THEN
    assertEquals(4, cluster.healthyCoreMembers().size());
    List<File> coreStoreDirs = storeDirs(cluster.coreMembers());
    cluster.shutdown();
    assertAllStoresHaveTheSameStoreId(coreStoreDirs, fs);
}

Example 22 with CoreClusterMember

use of org.neo4j.causalclustering.discovery.CoreClusterMember in project neo4j by neo4j.

the class CorePruningIT method actuallyDeletesTheFiles.

@Test
public void actuallyDeletesTheFiles() throws Exception {
    // given
    Cluster cluster = clusterRule.startCluster();
    CoreClusterMember coreGraphDatabase = null;
    int txs = 10;
    for (int i = 0; i < txs; i++) {
        coreGraphDatabase = cluster.coreTx((db, tx) -> {
            createData(db, 1);
            tx.success();
        });
    }
    // when pruning kicks in then some files are actually deleted
    File raftLogDir = coreGraphDatabase.raftLogDirectory();
    int expectedNumberOfLogFilesAfterPruning = 2;
    assertEventually("raft logs eventually pruned", () -> numberOfFiles(raftLogDir), equalTo(expectedNumberOfLogFilesAfterPruning), 5, TimeUnit.SECONDS);
}

Example 23 with CoreClusterMember

use of org.neo4j.causalclustering.discovery.CoreClusterMember in project neo4j by neo4j.

the class CorePruningIT method shouldNotPruneUncommittedEntries.

@Test
public void shouldNotPruneUncommittedEntries() throws Exception {
    // given
    Cluster cluster = clusterRule.startCluster();
    CoreClusterMember coreGraphDatabase = null;
    int txs = 1000;
    for (int i = 0; i < txs; i++) {
        coreGraphDatabase = cluster.coreTx((db, tx) -> createData(db, 1));
    }
    // when pruning kicks in then some files are actually deleted
    int expectedNumberOfLogFilesAfterPruning = 2;
    File raftLogDir = coreGraphDatabase.raftLogDirectory();
    assertEventually("raft logs eventually pruned", () -> numberOfFiles(raftLogDir), equalTo(expectedNumberOfLogFilesAfterPruning), 5, TimeUnit.SECONDS);
}

Example 24 with CoreClusterMember

use of org.neo4j.causalclustering.discovery.CoreClusterMember in project neo4j by neo4j.

the class ClusterSeedingIT method shouldSeedNewMemberFromEmptyIdleCluster.

@Test
public void shouldSeedNewMemberFromEmptyIdleCluster() throws Throwable {
    // given
    cluster = new Cluster(testDir.directory("cluster-b"), 3, 0, new SharedDiscoveryService(), emptyMap(), backupParams(), emptyMap(), emptyMap(), Standard.LATEST_NAME);
    cluster.start();
    // when: creating a backup
    File backupDir = createBackup(cluster.getCoreMemberById(0).database(), "the-backup");
    // and: seeding new member with said backup
    CoreClusterMember newMember = cluster.addCoreMemberWithId(3);
    fsa.copyRecursively(backupDir, newMember.storeDir());
    newMember.start();
    // then
    dataMatchesEventually(DbRepresentation.of(newMember.database()), cluster.coreMembers());
}

Example 25 with CoreClusterMember

use of org.neo4j.causalclustering.discovery.CoreClusterMember in project neo4j by neo4j.

the class BackupCoreIT method makeSureBackupCanBePerformedFromAnyInstance.

@Test
public void makeSureBackupCanBePerformedFromAnyInstance() throws Throwable {
    for (CoreClusterMember db : cluster.coreMembers()) {
        // Run backup
        DbRepresentation beforeChange = DbRepresentation.of(createSomeData(cluster));
        String[] args = backupArguments(backupAddress(db.database()), backupsDir, "" + db.serverId());
        assertEquals(0, runBackupToolFromOtherJvmToGetExitCode(clusterRule.clusterDirectory(), args));
        // Add some new data
        DbRepresentation afterChange = DbRepresentation.of(createSomeData(cluster));
        // Verify that old data is back
        DbRepresentation backupRepresentation = DbRepresentation.of(new File(backupsDir, "" + db.serverId()), getConfig());
        assertEquals(beforeChange, backupRepresentation);
        assertNotEquals(backupRepresentation, afterChange);
    }
}