Examples with KeeperException org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException used on opensource projects

Example 81 with KeeperException

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException in project free-framework by a601942905git.

the class ZookeeperTest method main.

public static void main(String[] args) {
    FtpConfig ftpConfig = FtpConfig.builder().host("127.0.0.1").port(80).userName("admin").userPassword("111111").build();
    byte[] strData = null;
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(ftpConfig);
        strData = baos.toByteArray();
    } catch (Exception e) {
        e.printStackTrace();
    }
    String serverList = "192.168.1.11:2181";
    int sessionTimeOut = 6000;
    try {
        ZooKeeper zooKeeper = new ZooKeeper(serverList, sessionTimeOut, (watchedEvent) -> {
            System.out.println("触发客户端监听事件......");
        });
        Stat stat = zooKeeper.exists(CONFIG_DATA, true);
        if (null == stat) {
            zooKeeper.create(CONFIG_DATA, strData, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        }
        stat = zooKeeper.exists(CONFIG_DATA, true);
        if (null != stat) {
            byte[] data = zooKeeper.getData(CONFIG_DATA, true, null);
            ByteArrayInputStream bais = new ByteArrayInputStream(data);
            ObjectInputStream ois = new ObjectInputStream(bais);
            Object obj = ois.readObject();
            System.out.println("配置信息===============>" + obj.toString());
        }
    } catch (IOException e) {
        log.error("异常:", e);
    } catch (InterruptedException e) {
        log.error("异常:", e);
    } catch (KeeperException e) {
        log.error("异常:", e);
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
}

Example 82 with KeeperException

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException in project incubator-gobblin by apache.

the class ZookeeperLeaderElection method determineLeadership.

private void determineLeadership() {
    ReentrantReadWriteLock.WriteLock lock = this.readWriteLock.writeLock();
    lock.lock();
    try {
        List<String> children = this.zooKeeper.getChildren().forPath(this.leaderElectionNode);
        Collections.sort(children);
        int idx = children.indexOf(this.nodeId);
        if (idx == 0) {
            Stat stat = this.zooKeeper.checkExists().forPath(this.leaderNode);
            if (stat == null) {
                this.zooKeeper.create().forPath(this.leaderNode, serializeMetadata(this.localMetadata));
            } else {
                this.zooKeeper.setData().forPath(this.leaderNode, serializeMetadata(this.localMetadata));
            }
            this.isLeader = true;
        } else {
            this.isLeader = false;
            String watchedNode = this.leaderElectionNode + "/" + children.get(idx - 1);
            this.zooKeeper.checkExists().usingWatcher(new DetermineLeadershipWatcher()).forPath(watchedNode);
        }
        findLeader();
    } catch (KeeperException exc) {
        reset();
    } catch (Throwable exc) {
        log.error("Fatal failure.", exc);
        this.fatalFailure = true;
    } finally {
        lock.unlock();
    }
}

Example 83 with KeeperException

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException in project herddb by diennea.

the class ZookeeperClientSideMetadataProvider method getServerHostData.

@Override
public ServerHostData getServerHostData(String nodeId) throws ClientSideMetadataProviderException {
    ServerHostData cached = servers.get(nodeId);
    if (cached != null) {
        return cached;
    }
    ZooKeeper zooKeeper = getZooKeeper();
    try {
        for (int i = 0; i < MAX_TRIALS; i++) {
            try {
                Stat stat = new Stat();
                byte[] node = zooKeeper.getData(basePath + "/nodes/" + nodeId, null, stat);
                NodeMetadata nodeMetadata = NodeMetadata.deserialize(node, stat.getVersion());
                ServerHostData result = new ServerHostData(nodeMetadata.host, nodeMetadata.port, "?", nodeMetadata.ssl, new HashMap<>());
                servers.put(nodeId, result);
                return result;
            } catch (KeeperException.NoNodeException ex) {
                return null;
            } catch (KeeperException.ConnectionLossException ex) {
                LOG.log(Level.SEVERE, "tmp error getServerHostData for " + nodeId + ": " + ex);
                try {
                    Thread.sleep(i * 500 + 1000);
                } catch (InterruptedException exit) {
                    throw new ClientSideMetadataProviderException(exit);
                }
            } catch (KeeperException | InterruptedException | IOException ex) {
                throw new ClientSideMetadataProviderException(ex);
            } finally {
                if (ownZooKeeper) {
                    try {
                        zooKeeper.close();
                    } catch (InterruptedException ex) {
                        throw new ClientSideMetadataProviderException(ex);
                    }
                }
            }
        }
    } finally {
        if (ownZooKeeper) {
            try {
                zooKeeper.close();
            } catch (InterruptedException ex) {
                throw new ClientSideMetadataProviderException(ex);
            }
        }
    }
    throw new ClientSideMetadataProviderException("Could not find a server info for node " + nodeId + " in time");
}

Example 84 with KeeperException

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException in project herddb by diennea.

the class ZookeeperMetadataStorageManager method listNodes.

@Override
public List<NodeMetadata> listNodes() throws MetadataStorageManagerException {
    try {
        List<String> children = ensureZooKeeper().getChildren(nodesPath, mainWatcher, null);
        LOGGER.severe("listNodes: for " + nodesPath + ": " + children);
        List<NodeMetadata> result = new ArrayList<>();
        for (String child : children) {
            NodeMetadata nodeMetadata = getNode(child);
            result.add(nodeMetadata);
        }
        return result;
    } catch (IOException | InterruptedException | KeeperException err) {
        handleSessionExpiredError(err);
        throw new MetadataStorageManagerException(err);
    }
}

Example 85 with KeeperException

use of org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException in project herddb by diennea.

the class ZookeeperMetadataStorageManager method updateTableSpaceReplicaState.

@Override
public void updateTableSpaceReplicaState(TableSpaceReplicaState state) throws MetadataStorageManagerException {
    try {
        String tableSpacePath = tableSpacesReplicasPath + "/" + state.uuid;
        byte[] data = state.serialize();
        try {
            ensureZooKeeper().setData(tableSpacePath + "/" + state.nodeId, data, -1);
        } catch (KeeperException.NoNodeException notExists) {
            try {
                ensureZooKeeper().create(tableSpacePath, data, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
            } catch (KeeperException.NodeExistsException existsRoot) {
            }
            ensureZooKeeper().create(tableSpacePath + "/" + state.nodeId, data, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        }
    } catch (InterruptedException | KeeperException | IOException err) {
        handleSessionExpiredError(err);
        throw new MetadataStorageManagerException(err);
    }
}