Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.ZkClient.readData()

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    }
    catch (HelixException e)
    {
      // OK
    }
    ZNRecord recordNew = zkClient.readData(path1);
    byte[] arr = serializer.serialize(record);
    byte[] arrNew = serializer.serialize(recordNew);
    Assert.assertTrue(Arrays.equals(arr, arrNew));

    // test ZkDataAccessor
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    String path1 = "/" + root + "/test1";
    zkClient.createPersistent(path1, true);
    zkClient.writeData(path1, smallRecord);

    ZNRecord record = zkClient.readData(path1);
    Assert.assertTrue(serializer.serialize(record).length > 900 * 1024);

    // oversized data doesn't create any data on zk
    // prepare a znode of size larger than 1m
    final ZNRecord largeRecord = new ZNRecord("oversize");
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    }
    catch (HelixException e)
    {
      // OK
    }
    record = zkClient.readData(path2);
    Assert.assertNull(record);

    // oversized write doesn't overwrite existing data on zk
    record = zkClient.readData(path1);
    try
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    }
    record = zkClient.readData(path2);
    Assert.assertNull(record);

    // oversized write doesn't overwrite existing data on zk
    record = zkClient.readData(path1);
    try
    {
      zkClient.writeData(path1, largeRecord);
      Assert.fail("Should fail because data size is larger than 1M");
    }
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    }
    catch (HelixException e)
    {
      // OK
    }
    ZNRecord recordNew = zkClient.readData(path1);
    byte[] arr = serializer.serialize(record);
    byte[] arrNew = serializer.serialize(recordNew);
    Assert.assertTrue(Arrays.equals(arr, arrNew));

    // test ZkDataAccessor
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    String zkAddr = "localhost:2187";
    ZkServer zkServer = TestHelper.startZkSever(zkAddr);
    ZkClient zkClient = ZKClientPool.getZkClient(zkAddr);
   
    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    ZNRecord record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);
   
    TestHelper.stopZkServer(zkServer);
   
    // restart zk
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    // restart zk
    zkServer = TestHelper.startZkSever(zkAddr);
    try
    {
      zkClient = ZKClientPool.getZkClient(zkAddr);
      record = zkClient.readData("/" + testName);
      Assert.fail("should fail on zk no node exception");
    } catch (ZkNoNodeException e)
    {
      // OK
    } catch (Exception e)
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    {
      Assert.fail("should not fail on exception other than ZkNoNodeException");
    }
   
    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);
   
    zkClient.close();
    TestHelper.stopZkServer(zkServer);
    System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
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    String path1 = "/" + root + "/test1";
    zkClient.createPersistent(path1, true);
    zkClient.writeData(path1, smallRecord);

    ZNRecord record = zkClient.readData(path1);
    Assert.assertTrue(serializer.serialize(record).length > 900 * 1024);

    // oversized data doesn't create any data on zk
    // prepare a znode of size larger than 1m
    final ZNRecord largeRecord = new ZNRecord("oversize");
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      zkClient.writeData(path2, largeRecord);
      Assert.fail("Should fail because data size is larger than 1M");
    } catch (HelixException e) {
      // OK
    }
    record = zkClient.readData(path2);
    Assert.assertNull(record);

    // oversized write doesn't overwrite existing data on zk
    record = zkClient.readData(path1);
    try {
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