Package org.apache.zookeeper

Examples of org.apache.zookeeper.KeeperException

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                        callback.operationFinished(ctx, null);
                        return;
                    }

                    if (Code.OK.intValue() != rc) {
                        KeeperException e = ZkUtils.logErrorAndCreateZKException("Could not read ownership for topic: "
                                            + topic.toStringUtf8(), path, rc);
                        callback.operationFailed(ctx, new PubSubException.ServiceDownException(e));
                        return;
                    }
                    HubInfo owner = null;
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                        return;
                    } else if (Code.OK.intValue() == rc) {
                        callback.operationFinished(ctx, new ZkVersion(stat.getVersion()));
                        return;
                    } else {
                        KeeperException e = ZkUtils.logErrorAndCreateZKException(
                            "Failed to update ownership of topic " + topic.toStringUtf8() +
                            " to " + owner, path, rc);
                        callback.operationFailed(ctx, new PubSubException.ServiceDownException(e));
                        return;
                    }
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                        // node existed
                        callback.operationFailed(ctx, PubSubException.create(StatusCode.TOPIC_OWNER_INFO_EXISTS,
                                                      "Owner info of topic " + topic.toStringUtf8() + " existed."));
                        return;
                    } else {
                        KeeperException e = ZkUtils.logErrorAndCreateZKException(
                                                "Failed to create znode for ownership of topic: "
                                                + topic.toStringUtf8(), path, rc);
                        callback.operationFailed(ctx, new PubSubException.ServiceDownException(e));
                        return;
                    }
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                        // bad version
                        callback.operationFailed(ctx, PubSubException.create(StatusCode.BAD_VERSION,
                                                      "Bad version provided to delete owner info of topic " + topic.toStringUtf8()));
                        return;
                    } else {
                        KeeperException e = ZkUtils.logErrorAndCreateZKException(
                                                "Failed to delete owner info for topic "
                                                + topic.toStringUtf8(), path, rc);
                        callback.operationFailed(ctx, new PubSubException.ServiceDownException(e));
                    }
                }
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        }, ctx);

    }

    public static KeeperException logErrorAndCreateZKException(String msg, String path, int rc) {
        KeeperException ke = KeeperException.create(Code.get(rc), path);
        logger.error(msg + ",zkPath: " + path, ke);
        return ke;
    }
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                        }
                    }, ctx);
                    return;
                }
                if (rc != Code.NODEEXISTS.intValue()) {
                    KeeperException ke = ZkUtils .logErrorAndCreateZKException(
                            "Could not create ephemeral node to register hub", ephemeralNodePath, rc);
                    callback.operationFailed(ctx, new PubSubException.ServiceDownException(ke));
                    return;
                }

                logger.info("Found stale ephemeral node while registering hub with ZK, deleting it");

                // Node exists, lets try to delete it and retry
                zk.delete(ephemeralNodePath, -1, new SafeAsyncZKCallback.VoidCallback() {
                    @Override
                    public void safeProcessResult(int rc, String path, Object ctx) {
                        if (rc == Code.OK.intValue() || rc == Code.NONODE.intValue()) {
                            registerSelf(selfData, callback, ctx);
                            return;
                        }
                        KeeperException ke = ZkUtils.logErrorAndCreateZKException(
                                "Could not delete stale ephemeral node to register hub", ephemeralNodePath, rc);
                        callback.operationFailed(ctx, new PubSubException.ServiceDownException(ke));
                        return;
                    }
                }, ctx);
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        zk.getChildren(hubNodesPath, false, new SafeAsyncZKCallback.ChildrenCallback() {
            @Override
            public void safeProcessResult(int rc, String path, Object ctx,
                                          List<String> children) {
                if (rc != Code.OK.intValue()) {
                    KeeperException e = ZkUtils.logErrorAndCreateZKException(
                        "Could not get list of available hubs", path, rc);
                    callback.operationFailed(ctx, new PubSubException.ServiceDownException(e));
                    return;
                }
                chooseLeastLoadedNode(children, callback, ctx);
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        try {
            b.testRegisterBookie(conf);
        } catch (IOException e) {
            Throwable t = e.getCause();
            if (t instanceof KeeperException) {
                KeeperException ke = (KeeperException) t;
                Assert.assertTrue("ErrorCode:" + ke.code()
                        + ", Registration node exists",
                        ke.code() != KeeperException.Code.NODEEXISTS);
            }
            throw e;
        }

        // verify ephemeral owner of the bkReg znode
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            b.testRegisterBookie(conf);
            fail("Should throw NodeExistsException as the znode is not getting expired");
        } catch (IOException e) {
            Throwable t = e.getCause();
            if (t instanceof KeeperException) {
                KeeperException ke = (KeeperException) t;
                Assert.assertTrue("ErrorCode:" + ke.code()
                        + ", Registration node doesn't exists",
                        ke.code() == KeeperException.Code.NODEEXISTS);

                // verify ephemeral owner of the bkReg znode
                Stat bkRegNode2 = newzk.exists(bkRegPath, false);
                Assert.assertNotNull("Bookie registration has been failed",
                        bkRegNode2);
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                if (rc == Code.OK.intValue()) {
                    callback.operationFinished(ctx, null);
                    return;
                }
                if (rc != Code.NODEEXISTS.intValue()) {
                    KeeperException ke = ZkUtils.logErrorAndCreateZKException(
                                             "Could not create ephemeral node to register hub", ephemeralNodePath, rc);
                    callback.operationFailed(ctx, new PubSubException.ServiceDownException(ke));
                    return;
                }

                logger.info("Found stale ephemeral node while registering hub with ZK, deleting it");

                // Node exists, lets try to delete it and retry
                zk.delete(ephemeralNodePath, -1, new SafeAsyncZKCallback.VoidCallback() {
                    @Override
                    public void safeProcessResult(int rc, String path, Object ctx) {
                        if (rc == Code.OK.intValue() || rc == Code.NONODE.intValue()) {
                            registerWithZookeeper(callback, ctx);
                            return;
                        }
                        KeeperException ke = ZkUtils.logErrorAndCreateZKException(
                                                 "Could not delete stale ephemeral node to register hub", ephemeralNodePath, rc);
                        callback.operationFailed(ctx, new PubSubException.ServiceDownException(ke));
                        return;

                    }
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Related Classes of org.apache.zookeeper.KeeperException

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  • com.alibaba.wasp.zookeeper.ZKUtil
  • com.nokia.dempsy.cluster.zookeeper.TestZookeeperClusterImpl
  • com.spotify.helios.agent.QueueingHistoryWriterTest
  • com.spotify.helios.servicescommon.coordination.ZooKeeperModelReporter
  • org.apache.bookkeeper.bookie.BookieInitializationTest
  • org.apache.curator.framework.recipes.leader.LeaderSelector
  • org.apache.curator.RetryLoop
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