Examples of LedgerUnderreplicationManager

Examples of org.apache.bookkeeper.meta.LedgerUnderreplicationManager

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            ZooKeeper zk = null;
            try {
                ZooKeeperWatcherBase w = new ZooKeeperWatcherBase(bkConf.getZkTimeout());
                zk = ZkUtils.createConnectedZookeeperClient(bkConf.getZkServers(), w);
                LedgerManagerFactory mFactory = LedgerManagerFactory.newLedgerManagerFactory(bkConf, zk);
                LedgerUnderreplicationManager underreplicationManager = mFactory.newLedgerUnderreplicationManager();
                if (enable) {
                    if (underreplicationManager.isLedgerReplicationEnabled()) {
                        LOG.warn("Autorecovery already enabled. Doing nothing");
                    } else {
                        LOG.info("Enabling autorecovery");
                        underreplicationManager.enableLedgerReplication();
                    }
                } else {
                    if (!underreplicationManager.isLedgerReplicationEnabled()) {
                        LOG.warn("Autorecovery already disabled. Doing nothing");
                    } else {
                        LOG.info("Disabling autorecovery");
                        underreplicationManager.disableLedgerReplication();
                    }
                }
            } finally {
                if (zk != null) {
                    zk.close();
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Examples of org.apache.bookkeeper.meta.LedgerUnderreplicationManager

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     * the bookie entry log
     */
    @Test(timeout=30000)
    public void testEntryLogCorruption() throws Exception {
        LedgerManagerFactory mFactory = LedgerManagerFactory.newLedgerManagerFactory(bsConfs.get(0), zkc);
        LedgerUnderreplicationManager underReplicationManager = mFactory.newLedgerUnderreplicationManager();
        underReplicationManager.disableLedgerReplication();

        LedgerHandle lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());
        long ledgerId = lh.getId();
        for (int i = 0; i < 100; i++) {
            lh.addEntry("testdata".getBytes());
        }
        lh.close();

        BookieAccessor.forceFlush(bs.get(0).getBookie());


        File ledgerDir = bsConfs.get(0).getLedgerDirs()[0];
        ledgerDir = Bookie.getCurrentDirectory(ledgerDir);
        // corrupt of entryLogs
        File[] entryLogs = ledgerDir.listFiles(new FilenameFilter() {
                public boolean accept(File dir, String name) {
                    return name.endsWith(".log");
                }
            });
        ByteBuffer junk = ByteBuffer.allocate(1024*1024);
        for (File f : entryLogs) {
            FileOutputStream out = new FileOutputStream(f);
            out.getChannel().write(junk);
            out.close();
        }
        restartBookies(); // restart to clear read buffers

        underReplicationManager.enableLedgerReplication();
        long underReplicatedLedger = -1;
        for (int i = 0; i < 10; i++) {
            underReplicatedLedger = underReplicationManager.pollLedgerToRereplicate();
            if (underReplicatedLedger != -1) {
                break;
            }
            Thread.sleep(CHECK_INTERVAL);
        }
        assertEquals("Ledger should be under replicated", ledgerId, underReplicatedLedger);
        underReplicationManager.close();
    }
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Examples of org.apache.bookkeeper.meta.LedgerUnderreplicationManager

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     * the bookie index files
     */
    @Test(timeout=30000)
    public void testIndexCorruption() throws Exception {
        LedgerManagerFactory mFactory = LedgerManagerFactory.newLedgerManagerFactory(bsConfs.get(0), zkc);
        LedgerUnderreplicationManager underReplicationManager = mFactory.newLedgerUnderreplicationManager();

        LedgerHandle lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());
        long ledgerToCorrupt = lh.getId();
        for (int i = 0; i < 100; i++) {
            lh.addEntry("testdata".getBytes());
        }
        lh.close();

        // push ledgerToCorrupt out of page cache (bookie is configured to only use 1 page)
        lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());
        for (int i = 0; i < 100; i++) {
            lh.addEntry("testdata".getBytes());
        }
        lh.close();

        BookieAccessor.forceFlush(bs.get(0).getBookie());

        File ledgerDir = bsConfs.get(0).getLedgerDirs()[0];
        ledgerDir = Bookie.getCurrentDirectory(ledgerDir);

        // corrupt of entryLogs
        File index = new File(ledgerDir, LedgerCacheImpl.getLedgerName(ledgerToCorrupt));
        LOG.info("file to corrupt{}" , index);
        ByteBuffer junk = ByteBuffer.allocate(1024*1024);
        FileOutputStream out = new FileOutputStream(index);
        out.getChannel().write(junk);
        out.close();

        long underReplicatedLedger = -1;
        for (int i = 0; i < 10; i++) {
            underReplicatedLedger = underReplicationManager.pollLedgerToRereplicate();
            if (underReplicatedLedger != -1) {
                break;
            }
            Thread.sleep(CHECK_INTERVAL);
        }
        assertEquals("Ledger should be under replicated", ledgerToCorrupt, underReplicatedLedger);
        underReplicationManager.close();
    }
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