Examples with MemcachedClientIF net.spy.memcached.MemcachedClientIF used on opensource projects

Example 1 with MemcachedClientIF

use of net.spy.memcached.MemcachedClientIF in project cas by apereo.

the class MemcachedMonitorConfiguration method memcachedHealthIndicator.

@Bean
public HealthIndicator memcachedHealthIndicator() {
    final MonitorProperties.Memcached memcached = casProperties.getMonitor().getMemcached();
    final MemcachedPooledClientConnectionFactory factory = new MemcachedPooledClientConnectionFactory(memcached, memcachedMonitorTranscoder());
    final ObjectPool<MemcachedClientIF> pool = new GenericObjectPool<>(factory);
    return new MemcachedHealthIndicator(pool, casProperties);
}

Example 2 with MemcachedClientIF

use of net.spy.memcached.MemcachedClientIF in project cas by apereo.

the class MemcachedTicketRegistry method addTicket.

@Override
public void addTicket(final Ticket ticketToAdd) {
    final MemcachedClientIF clientFromPool = getClientFromPool();
    try {
        final Ticket ticket = encodeTicket(ticketToAdd);
        LOGGER.debug("Adding ticket [{}]", ticket);
        clientFromPool.set(ticket.getId(), getTimeout(ticketToAdd), ticket);
    } catch (final Exception e) {
        LOGGER.error("Failed adding [{}]", ticketToAdd, e);
    } finally {
        returnClientToPool(clientFromPool);
    }
}

Example 3 with MemcachedClientIF

use of net.spy.memcached.MemcachedClientIF in project cas by apereo.

the class MemcachedTicketRegistry method getTicket.

@Override
public Ticket getTicket(final String ticketIdToGet) {
    final MemcachedClientIF clientFromPool = getClientFromPool();
    final String ticketId = encodeTicketId(ticketIdToGet);
    try {
        final Ticket ticketFromCache = (Ticket) clientFromPool.get(ticketId);
        if (ticketFromCache != null) {
            final Ticket result = decodeTicket(ticketFromCache);
            if (result != null && result.isExpired()) {
                LOGGER.debug("Ticket [{}] has expired and is now removed from the memcached", result.getId());
                deleteSingleTicket(ticketId);
                return null;
            }
            return result;
        }
    } catch (final Exception e) {
        LOGGER.error("Failed fetching [{}] ", ticketId, e);
    } finally {
        returnClientToPool(clientFromPool);
    }
    return null;
}

Example 4 with MemcachedClientIF

use of net.spy.memcached.MemcachedClientIF in project druid by druid-io.

the class MemcachedCache method create.

public static MemcachedCache create(final MemcachedCacheConfig config) {
    final ConcurrentMap<String, AtomicLong> counters = new ConcurrentHashMap<>();
    final ConcurrentMap<String, AtomicLong> meters = new ConcurrentHashMap<>();
    final AbstractMonitor monitor = new AbstractMonitor() {

        final AtomicReference<Map<String, Long>> priorValues = new AtomicReference<Map<String, Long>>(new HashMap<String, Long>());

        @Override
        public boolean doMonitor(ServiceEmitter emitter) {
            final Map<String, Long> priorValues = this.priorValues.get();
            final Map<String, Long> currentValues = getCurrentValues();
            final ServiceMetricEvent.Builder builder = ServiceMetricEvent.builder();
            for (Map.Entry<String, Long> entry : currentValues.entrySet()) {
                emitter.emit(builder.setDimension("memcached metric", entry.getKey()).build("query/cache/memcached/total", entry.getValue()));
                final Long prior = priorValues.get(entry.getKey());
                if (prior != null) {
                    emitter.emit(builder.setDimension("memcached metric", entry.getKey()).build("query/cache/memcached/delta", entry.getValue() - prior));
                }
            }
            if (!this.priorValues.compareAndSet(priorValues, currentValues)) {
                log.error("Prior value changed while I was reporting! updating anyways");
                this.priorValues.set(currentValues);
            }
            return true;
        }

        private Map<String, Long> getCurrentValues() {
            final ImmutableMap.Builder<String, Long> builder = ImmutableMap.builder();
            for (Map.Entry<String, AtomicLong> entry : counters.entrySet()) {
                builder.put(entry.getKey(), entry.getValue().get());
            }
            for (Map.Entry<String, AtomicLong> entry : meters.entrySet()) {
                builder.put(entry.getKey(), entry.getValue().get());
            }
            return builder.build();
        }
    };
    try {
        LZ4Transcoder transcoder = new LZ4Transcoder(config.getMaxObjectSize());
        // always use compression
        transcoder.setCompressionThreshold(0);
        OperationQueueFactory opQueueFactory;
        long maxQueueBytes = config.getMaxOperationQueueSize();
        if (maxQueueBytes > 0) {
            opQueueFactory = new MemcachedOperationQueueFactory(maxQueueBytes);
        } else {
            opQueueFactory = new LinkedOperationQueueFactory();
        }
        final Predicate<String> interesting = new Predicate<String>() {

            // See net.spy.memcached.MemcachedConnection.registerMetrics()
            private final Set<String> interestingMetrics = ImmutableSet.of("[MEM] Reconnecting Nodes (ReconnectQueue)", //"[MEM] Shutting Down Nodes (NodesToShutdown)", // Busted
            "[MEM] Request Rate: All", "[MEM] Average Bytes written to OS per write", "[MEM] Average Bytes read from OS per read", "[MEM] Average Time on wire for operations (µs)", "[MEM] Response Rate: All (Failure + Success + Retry)", "[MEM] Response Rate: Retry", "[MEM] Response Rate: Failure", "[MEM] Response Rate: Success");

            @Override
            public boolean apply(@Nullable String input) {
                return input != null && interestingMetrics.contains(input);
            }
        };
        final MetricCollector metricCollector = new MetricCollector() {

            @Override
            public void addCounter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                counters.putIfAbsent(name, new AtomicLong(0L));
                if (log.isDebugEnabled()) {
                    log.debug("Add Counter [%s]", name);
                }
            }

            @Override
            public void removeCounter(String name) {
                if (log.isDebugEnabled()) {
                    log.debug("Ignoring request to remove [%s]", name);
                }
            }

            @Override
            public void incrementCounter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0));
                    counter = counters.get(name);
                }
                counter.incrementAndGet();
                if (log.isDebugEnabled()) {
                    log.debug("Increment [%s]", name);
                }
            }

            @Override
            public void incrementCounter(String name, int amount) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0));
                    counter = counters.get(name);
                }
                counter.addAndGet(amount);
                if (log.isDebugEnabled()) {
                    log.debug("Increment [%s] %d", name, amount);
                }
            }

            @Override
            public void decrementCounter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0));
                    counter = counters.get(name);
                }
                counter.decrementAndGet();
                if (log.isDebugEnabled()) {
                    log.debug("Decrement [%s]", name);
                }
            }

            @Override
            public void decrementCounter(String name, int amount) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0L));
                    counter = counters.get(name);
                }
                counter.addAndGet(-amount);
                if (log.isDebugEnabled()) {
                    log.debug("Decrement [%s] %d", name, amount);
                }
            }

            @Override
            public void addMeter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                meters.putIfAbsent(name, new AtomicLong(0L));
                if (log.isDebugEnabled()) {
                    log.debug("Adding meter [%s]", name);
                }
            }

            @Override
            public void removeMeter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                if (log.isDebugEnabled()) {
                    log.debug("Ignoring request to remove meter [%s]", name);
                }
            }

            @Override
            public void markMeter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong meter = meters.get(name);
                if (meter == null) {
                    meters.putIfAbsent(name, new AtomicLong(0L));
                    meter = meters.get(name);
                }
                meter.incrementAndGet();
                if (log.isDebugEnabled()) {
                    log.debug("Increment counter [%s]", name);
                }
            }

            @Override
            public void addHistogram(String name) {
                log.debug("Ignoring add histogram [%s]", name);
            }

            @Override
            public void removeHistogram(String name) {
                log.debug("Ignoring remove histogram [%s]", name);
            }

            @Override
            public void updateHistogram(String name, int amount) {
                log.debug("Ignoring update histogram [%s]: %d", name, amount);
            }
        };
        final ConnectionFactory connectionFactory = new MemcachedCustomConnectionFactoryBuilder().setKetamaNodeRepetitions(1000).setHashAlg(MURMUR3_128).setProtocol(ConnectionFactoryBuilder.Protocol.BINARY).setLocatorType(ConnectionFactoryBuilder.Locator.CONSISTENT).setDaemon(true).setFailureMode(FailureMode.Cancel).setTranscoder(transcoder).setShouldOptimize(true).setOpQueueMaxBlockTime(config.getTimeout()).setOpTimeout(config.getTimeout()).setReadBufferSize(config.getReadBufferSize()).setOpQueueFactory(opQueueFactory).setMetricCollector(metricCollector).setEnableMetrics(// Not as scary as it sounds
        MetricType.DEBUG).build();
        final List<InetSocketAddress> hosts = AddrUtil.getAddresses(config.getHosts());
        final Supplier<ResourceHolder<MemcachedClientIF>> clientSupplier;
        if (config.getNumConnections() > 1) {
            clientSupplier = new MemcacheClientPool(config.getNumConnections(), new Supplier<MemcachedClientIF>() {

                @Override
                public MemcachedClientIF get() {
                    try {
                        return new MemcachedClient(connectionFactory, hosts);
                    } catch (IOException e) {
                        log.error(e, "Unable to create memcached client");
                        throw Throwables.propagate(e);
                    }
                }
            });
        } else {
            clientSupplier = Suppliers.<ResourceHolder<MemcachedClientIF>>ofInstance(StupidResourceHolder.<MemcachedClientIF>create(new MemcachedClient(connectionFactory, hosts)));
        }
        return new MemcachedCache(clientSupplier, config, monitor);
    } catch (IOException e) {
        throw Throwables.propagate(e);
    }
}

Example 5 with MemcachedClientIF

use of net.spy.memcached.MemcachedClientIF in project cas by apereo.

the class MemcachedPooledClientConnectionFactory method create.

@Override
@SneakyThrows
public MemcachedClientIF create() {
    val factoryBean = new MemcachedClientFactoryBean();
    factoryBean.setServers(memcachedProperties.getServers());
    factoryBean.setTranscoder(this.transcoder);
    if (StringUtils.isNotBlank(memcachedProperties.getLocatorType())) {
        factoryBean.setLocatorType(ConnectionFactoryBuilder.Locator.valueOf(memcachedProperties.getLocatorType()));
    }
    if (StringUtils.isNotBlank(memcachedProperties.getFailureMode())) {
        factoryBean.setFailureMode(FailureMode.valueOf(memcachedProperties.getFailureMode()));
    }
    if (StringUtils.isNotBlank(memcachedProperties.getHashAlgorithm())) {
        factoryBean.setHashAlg(DefaultHashAlgorithm.valueOf(memcachedProperties.getHashAlgorithm()));
    }
    if (StringUtils.isNotBlank(memcachedProperties.getProtocol())) {
        factoryBean.setProtocol(ConnectionFactoryBuilder.Protocol.valueOf(memcachedProperties.getProtocol()));
    }
    factoryBean.setDaemon(memcachedProperties.isDaemon());
    factoryBean.setShouldOptimize(memcachedProperties.isShouldOptimize());
    factoryBean.setUseNagleAlgorithm(memcachedProperties.isUseNagleAlgorithm());
    if (memcachedProperties.getOpTimeout() > 0) {
        factoryBean.setOpTimeout(memcachedProperties.getOpTimeout());
    }
    if (memcachedProperties.getMaxReconnectDelay() > 0) {
        factoryBean.setMaxReconnectDelay(memcachedProperties.getMaxReconnectDelay());
    }
    if (memcachedProperties.getShutdownTimeoutSeconds() > 0) {
        factoryBean.setShutdownTimeoutSeconds(memcachedProperties.getShutdownTimeoutSeconds());
    }
    if (memcachedProperties.getTimeoutExceptionThreshold() > 0) {
        factoryBean.setTimeoutExceptionThreshold(memcachedProperties.getTimeoutExceptionThreshold());
    }
    factoryBean.afterPropertiesSet();
    return (MemcachedClientIF) factoryBean.getObject();
}