How to use

getZkHierarchyDepth

method

in

io.pravega.segmentstore.storage.impl.bookkeeper.BookKeeperConfig

/**
 * Creates a new instance of the BookKeeper log class.
 *
 * @param containerId     The Id of the Container whose BookKeeperLog to open.
 * @param zkClient        A reference to the CuratorFramework client to use.
 * @param bookKeeper      A reference to the BookKeeper client to use.
 * @param config          Configuration to use.
 * @param executorService An Executor to use for async operations.
 */
BookKeeperLog(int containerId, CuratorFramework zkClient, BookKeeper bookKeeper, BookKeeperConfig config, ScheduledExecutorService executorService) {
  Preconditions.checkArgument(containerId >= 0, "containerId must be a non-negative integer.");
  this.zkClient = Preconditions.checkNotNull(zkClient, "zkClient");
  this.bookKeeper = Preconditions.checkNotNull(bookKeeper, "bookKeeper");
  this.config = Preconditions.checkNotNull(config, "config");
  this.executorService = Preconditions.checkNotNull(executorService, "executorService");
  this.closed = new AtomicBoolean();
  this.logNodePath = HierarchyUtils.getPath(containerId, this.config.getZkHierarchyDepth());
  this.traceObjectId = String.format("Log[%d]", containerId);
  this.writes = new WriteQueue();
  val retry = createRetryPolicy(this.config.getMaxWriteAttempts(), this.config.getBkWriteTimeoutMillis());
  this.writeProcessor = new SequentialAsyncProcessor(this::processWritesSync, retry, this::handleWriteProcessorFailures, this.executorService);
  this.rolloverProcessor = new SequentialAsyncProcessor(this::rollover, retry, this::handleRolloverFailure, this.executorService);
  this.metrics = new BookKeeperMetrics.BookKeeperLog(containerId);
  this.metricReporter = this.executorService.scheduleWithFixedDelay(this::reportMetrics, REPORT_INTERVAL, REPORT_INTERVAL, TimeUnit.MILLISECONDS);
}

@Test
public void testDefaultValues() {
  BookKeeperConfig cfg = BookKeeperConfig.builder()
      .build();
  Assert.assertEquals("localhost:2181", cfg.getZkAddress());
  Assert.assertEquals(Duration.ofMillis(10000), cfg.getZkSessionTimeout());
  Assert.assertEquals(Duration.ofMillis(10000), cfg.getZkConnectionTimeout());
  Assert.assertEquals("/segmentstore/containers", cfg.getZkMetadataPath());
  Assert.assertEquals(2, cfg.getZkHierarchyDepth());
  Assert.assertEquals(5, cfg.getMaxWriteAttempts());
  Assert.assertEquals(3, cfg.getBkEnsembleSize());
  Assert.assertEquals(2, cfg.getBkAckQuorumSize());
  Assert.assertEquals(3, cfg.getBkWriteQuorumSize());
  Assert.assertEquals(5000, cfg.getBkWriteTimeoutMillis());
  Assert.assertEquals(5000, cfg.getBkReadTimeoutMillis());
  Assert.assertEquals(1024 * 1024 * 1024, cfg.getBkLedgerMaxSize());
  Assert.assertEquals(0, cfg.getBKPassword().length);
  Assert.assertEquals("", cfg.getBkLedgerPath());
  Assert.assertEquals(false, cfg.isTLSEnabled());
  Assert.assertEquals("config/client.truststore.jks", cfg.getTlsTrustStore());
  Assert.assertEquals("", cfg.getTlsTrustStorePasswordPath());
}