Examples with Proposal org.apache.zookeeper.server.quorum.Leader.Proposal used on opensource projects

Example 16 with Proposal

use of org.apache.zookeeper.server.quorum.Leader.Proposal in project zookeeper by apache.

the class RestoreCommittedLogTest method testRestoreCommittedLog.

/**
 * test the purge
 * @throws Exception an exception might be thrown here
 */
private void testRestoreCommittedLog(int totalTransactions, byte[] data, int minExpectedSnapshots) throws Exception {
    File tmpDir = ClientBase.createTmpDir();
    ClientBase.setupTestEnv();
    ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
    final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
    ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
    f.startup(zks);
    assertTrue(ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT), "waiting for server being up ");
    ZooKeeper zk = ClientBase.createZKClient(HOSTPORT);
    try {
        for (int i = 0; i < totalTransactions; i++) {
            zk.create("/invalidsnap-" + i, data, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        }
    } finally {
        zk.close();
    }
    final int numSnaps = zks.getTxnLogFactory().findNRecentSnapshots(10 * minExpectedSnapshots).size();
    LOG.info("number of snapshots taken {}", numSnaps);
    f.shutdown();
    zks.shutdown();
    assertTrue(ClientBase.waitForServerDown(HOSTPORT, CONNECTION_TIMEOUT), "waiting for server to shutdown");
    assertTrue(numSnaps > minExpectedSnapshots, "too few snapshot files");
    assertTrue(numSnaps <= minExpectedSnapshots * 2, "too many snapshot files");
    // start server again
    zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
    zks.startdata();
    Collection<Proposal> committedLog = zks.getZKDatabase().getCommittedLog();
    int logsize = committedLog.size();
    LOG.info("committedLog size = {}", logsize);
    assertTrue((logsize != 0), "log size != 0");
    zks.shutdown();
}