@Override public byte[] randomKey() { List<RedisClusterNode> nodes = new ArrayList<>( connection.getTopologyProvider().getTopology().getActiveMasterNodes()); Set<RedisNode> inspectedNodes = new HashSet<>(nodes.size()); do { RedisClusterNode node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size())); while (inspectedNodes.contains(node)) { node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size())); } inspectedNodes.add(node); byte[] key = randomKey(node); if (key != null && key.length > 0) { return key; } } while (nodes.size() != inspectedNodes.size()); return null; }
/** * Run {@link ClusterCommandCallback} on all reachable master nodes. * * @param cmd must not be {@literal null}. * @return never {@literal null}. * @throws ClusterCommandExecutionFailureException */ public <S, T> MultiNodeResult<T> executeCommandOnAllNodes(final ClusterCommandCallback<S, T> cmd) { return executeCommandAsyncOnNodes(cmd, getClusterTopology().getActiveMasterNodes()); }
@Override public void clusterForget(RedisClusterNode node) { Set<RedisClusterNode> nodes = new LinkedHashSet<>(topologyProvider.getTopology().getActiveMasterNodes()); RedisClusterNode nodeToRemove = topologyProvider.getTopology().lookup(node); nodes.remove(nodeToRemove); clusterCommandExecutor.executeCommandAsyncOnNodes( (JedisClusterCommandCallback<String>) client -> client.clusterForget(node.getId()), nodes); }
@Override public Map<RedisClusterNode, Collection<RedisClusterNode>> clusterGetMasterSlaveMap() { List<NodeResult<Collection<RedisClusterNode>>> nodeResults = clusterCommandExecutor.executeCommandAsyncOnNodes( (LettuceClusterCommandCallback<Collection<RedisClusterNode>>) client -> Converters .toSetOfRedisClusterNodes(client.clusterSlaves(client.clusterMyId())), topologyProvider.getTopology().getActiveMasterNodes()).getResults(); Map<RedisClusterNode, Collection<RedisClusterNode>> result = new LinkedHashMap<>(); for (NodeResult<Collection<RedisClusterNode>> nodeResult : nodeResults) { result.put(nodeResult.getNode(), nodeResult.getValue()); } return result; }
@Override public Map<RedisClusterNode, Collection<RedisClusterNode>> clusterGetMasterSlaveMap() { List<NodeResult<Collection<RedisClusterNode>>> nodeResults = clusterCommandExecutor .executeCommandAsyncOnNodes((JedisClusterCommandCallback<Collection<RedisClusterNode>>) client -> { // TODO: remove client.eval as soon as Jedis offers support for myid return JedisConverters.toSetOfRedisClusterNodes( client.clusterSlaves((String) client.eval("return redis.call('cluster', 'myid')", 0))); }, topologyProvider.getTopology().getActiveMasterNodes()).getResults(); Map<RedisClusterNode, Collection<RedisClusterNode>> result = new LinkedHashMap<>(); for (NodeResult<Collection<RedisClusterNode>> nodeResult : nodeResults) { result.put(nodeResult.getNode(), nodeResult.getValue()); } return result; }
@Override public byte[] randomKey() { List<RedisClusterNode> nodes = new ArrayList<>( connection.getTopologyProvider().getTopology().getActiveMasterNodes()); Set<RedisNode> inspectedNodes = new HashSet<>(nodes.size()); do { RedisClusterNode node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size())); while (inspectedNodes.contains(node)) { node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size())); } inspectedNodes.add(node); byte[] key = randomKey(node); if (key != null && key.length > 0) { return key; } } while (nodes.size() != inspectedNodes.size()); return null; }
@Override public byte[] randomKey() { List<RedisClusterNode> nodes = new ArrayList<>( connection.getTopologyProvider().getTopology().getActiveMasterNodes()); Set<RedisNode> inspectedNodes = new HashSet<>(nodes.size()); do { RedisClusterNode node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size())); while (inspectedNodes.contains(node)) { node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size())); } inspectedNodes.add(node); byte[] key = randomKey(node); if (key != null && key.length > 0) { return key; } } while (nodes.size() != inspectedNodes.size()); return null; }
/** * Run {@link ClusterCommandCallback} on all reachable master nodes. * * @param cmd must not be {@literal null}. * @return never {@literal null}. * @throws ClusterCommandExecutionFailureException */ public <S, T> MultiNodeResult<T> executeCommandOnAllNodes(final ClusterCommandCallback<S, T> cmd) { return executeCommandAsyncOnNodes(cmd, getClusterTopology().getActiveMasterNodes()); }
/** * Run {@link ClusterCommandCallback} on all reachable master nodes. * * @param cmd must not be {@literal null}. * @return never {@literal null}. * @throws ClusterCommandExecutionFailureException */ public <S, T> MultiNodeResult<T> executeCommandOnAllNodes(final ClusterCommandCallback<S, T> cmd) { return executeCommandAsyncOnNodes(cmd, getClusterTopology().getActiveMasterNodes()); }
@Override public void clusterForget(RedisClusterNode node) { Set<RedisClusterNode> nodes = new LinkedHashSet<>(topologyProvider.getTopology().getActiveMasterNodes()); RedisClusterNode nodeToRemove = topologyProvider.getTopology().lookup(node); nodes.remove(nodeToRemove); clusterCommandExecutor.executeCommandAsyncOnNodes( (JedisClusterCommandCallback<String>) client -> client.clusterForget(node.getId()), nodes); }
@Override public void clusterForget(RedisClusterNode node) { Set<RedisClusterNode> nodes = new LinkedHashSet<>(topologyProvider.getTopology().getActiveMasterNodes()); RedisClusterNode nodeToRemove = topologyProvider.getTopology().lookup(node); nodes.remove(nodeToRemove); clusterCommandExecutor.executeCommandAsyncOnNodes( (JedisClusterCommandCallback<String>) client -> client.clusterForget(node.getId()), nodes); }
@Override public Map<RedisClusterNode, Collection<RedisClusterNode>> clusterGetMasterSlaveMap() { List<NodeResult<Collection<RedisClusterNode>>> nodeResults = clusterCommandExecutor.executeCommandAsyncOnNodes( (LettuceClusterCommandCallback<Collection<RedisClusterNode>>) client -> Converters .toSetOfRedisClusterNodes(client.clusterSlaves(client.clusterMyId())), topologyProvider.getTopology().getActiveMasterNodes()).getResults(); Map<RedisClusterNode, Collection<RedisClusterNode>> result = new LinkedHashMap<>(); for (NodeResult<Collection<RedisClusterNode>> nodeResult : nodeResults) { result.put(nodeResult.getNode(), nodeResult.getValue()); } return result; }
@Override public Map<RedisClusterNode, Collection<RedisClusterNode>> clusterGetMasterSlaveMap() { List<NodeResult<Collection<RedisClusterNode>>> nodeResults = clusterCommandExecutor.executeCommandAsyncOnNodes( (LettuceClusterCommandCallback<Collection<RedisClusterNode>>) client -> Converters .toSetOfRedisClusterNodes(client.clusterSlaves(client.clusterMyId())), topologyProvider.getTopology().getActiveMasterNodes()).getResults(); Map<RedisClusterNode, Collection<RedisClusterNode>> result = new LinkedHashMap<>(); for (NodeResult<Collection<RedisClusterNode>> nodeResult : nodeResults) { result.put(nodeResult.getNode(), nodeResult.getValue()); } return result; }
@Override public Map<RedisClusterNode, Collection<RedisClusterNode>> clusterGetMasterSlaveMap() { List<NodeResult<Collection<RedisClusterNode>>> nodeResults = clusterCommandExecutor .executeCommandAsyncOnNodes((JedisClusterCommandCallback<Collection<RedisClusterNode>>) client -> { // TODO: remove client.eval as soon as Jedis offers support for myid return JedisConverters.toSetOfRedisClusterNodes( client.clusterSlaves((String) client.eval("return redis.call('cluster', 'myid')", 0))); }, topologyProvider.getTopology().getActiveMasterNodes()).getResults(); Map<RedisClusterNode, Collection<RedisClusterNode>> result = new LinkedHashMap<>(); for (NodeResult<Collection<RedisClusterNode>> nodeResult : nodeResults) { result.put(nodeResult.getNode(), nodeResult.getValue()); } return result; }
@Override public Map<RedisClusterNode, Collection<RedisClusterNode>> clusterGetMasterSlaveMap() { List<NodeResult<Collection<RedisClusterNode>>> nodeResults = clusterCommandExecutor .executeCommandAsyncOnNodes((JedisClusterCommandCallback<Collection<RedisClusterNode>>) client -> { // TODO: remove client.eval as soon as Jedis offers support for myid return JedisConverters.toSetOfRedisClusterNodes( client.clusterSlaves((String) client.eval("return redis.call('cluster', 'myid')", 0))); }, topologyProvider.getTopology().getActiveMasterNodes()).getResults(); Map<RedisClusterNode, Collection<RedisClusterNode>> result = new LinkedHashMap<>(); for (NodeResult<Collection<RedisClusterNode>> nodeResult : nodeResults) { result.put(nodeResult.getNode(), nodeResult.getValue()); } return result; }