Examples with Histogram net.opentsdb.core.Histogram used on opensource projects

Example 1 with Histogram

use of net.opentsdb.core.Histogram in project opentsdb by OpenTSDB.

the class HistogramDataPointRpc method importDataPoint.

@Override
protected Deferred<Object> importDataPoint(final TSDB tsdb, final String[] words) {
    if (!enabled) {
        throw new IllegalArgumentException("Histogram storage has not been enabled. Check the " + "'tsd.core.histograms.config' configuration.");
    }
    // Ditch the "histogram".
    words[0] = null;
    if (words.length < 5) {
        // ^ 5 and not 4 because words[0] is "histogram".
        throw new IllegalArgumentException("not enough arguments" + " (need least 5, got " + (words.length - 1) + ')');
    }
    final String metric = words[1];
    if (metric.length() <= 0) {
        throw new IllegalArgumentException("empty metric name");
    }
    final long timestamp;
    if (words[2].contains(".")) {
        timestamp = Tags.parseLong(words[2].replace(".", ""));
    } else {
        timestamp = Tags.parseLong(words[2]);
    }
    if (timestamp <= 0) {
        throw new IllegalArgumentException("invalid timestamp: " + timestamp);
    }
    boolean has_id = false;
    int id = 0;
    try {
        id = Integer.parseInt(words[3]);
        has_id = true;
    } catch (NumberFormatException e) {
    }
    final String value;
    if (has_id) {
        value = words[4];
    } else {
        // it's a simple Id
        id = tsdb.histogramManager().getCodec(SimpleHistogramDecoder.class);
        value = words[3];
    }
    if (value.length() <= 0) {
        throw new IllegalArgumentException("empty histogram value");
    }
    final HashMap<String, String> tags = new HashMap<String, String>();
    for (int i = has_id ? 5 : 4; i < words.length; i++) {
        if (!words[i].isEmpty()) {
            Tags.parse(tags, words[i]);
        }
    }
    // validation and prepend the ID.
    try {
        final Histogram dp;
        if (has_id) {
            dp = tsdb.histogramManager().decode(id, HistogramPojo.base64StringToBytes(value), false);
        } else {
            dp = parseTelnet(tsdb, value);
        }
        return tsdb.addHistogramPoint(metric, timestamp, tsdb.histogramManager().encode(id, dp, true), tags);
    } catch (Exception e) {
        return Deferred.fromError(e);
    }
}

Example 2 with Histogram

use of net.opentsdb.core.Histogram in project opentsdb by OpenTSDB.

the class PutDataPointRpc method processDataPoint.

/**
 * Handles one or more incoming data point types for the HTTP endpoint
 * to put raw, rolled up or aggregated data points
 * @param <T> An {@link IncomingDataPoint} class.
 * @param tsdb The TSDB to which we belong
 * @param query The query to respond to
 * @param dps The de-serialized data points
 * @throws BadRequestException if the data is invalid in some way
 * @since 2.4
 */
public <T extends IncomingDataPoint> void processDataPoint(final TSDB tsdb, final HttpQuery query, final List<T> dps) {
    if (dps.size() < 1) {
        throw new BadRequestException("No datapoints found in content");
    }
    final HashMap<String, String> query_tags = new HashMap<String, String>();
    final boolean show_details = query.hasQueryStringParam("details");
    final boolean show_summary = query.hasQueryStringParam("summary");
    final boolean synchronous = query.hasQueryStringParam("sync");
    final int sync_timeout = query.hasQueryStringParam("sync_timeout") ? Integer.parseInt(query.getQueryStringParam("sync_timeout")) : 0;
    // this is used to coordinate timeouts
    final AtomicBoolean sending_response = new AtomicBoolean();
    sending_response.set(false);
    final List<Map<String, Object>> details = show_details ? new ArrayList<Map<String, Object>>() : null;
    int queued = 0;
    final List<Deferred<Boolean>> deferreds = synchronous ? new ArrayList<Deferred<Boolean>>(dps.size()) : null;
    if (tsdb.getConfig().enable_header_tag()) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Looking for tag header " + tsdb.getConfig().get_name_header_tag());
        }
        final String header_tag_value = query.getHeaderValue(tsdb.getConfig().get_name_header_tag());
        if (header_tag_value != null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug(" header found with value:" + header_tag_value);
            }
            Tags.parse(query_tags, header_tag_value);
        } else if (LOG.isDebugEnabled()) {
            LOG.debug(" no such header in request");
        }
    }
    for (final IncomingDataPoint dp : dps) {
        final DataPointType type;
        if (dp instanceof RollUpDataPoint) {
            type = DataPointType.ROLLUP;
            rollup_dps.incrementAndGet();
        } else if (dp instanceof HistogramPojo) {
            type = DataPointType.HISTOGRAM;
            raw_histograms.incrementAndGet();
        } else {
            type = DataPointType.PUT;
            raw_dps.incrementAndGet();
        }
        /*
        Error back callback to handle storage failures
       */
        final class PutErrback implements Callback<Boolean, Exception> {

            public Boolean call(final Exception arg) {
                if (arg instanceof PleaseThrottleException) {
                    inflight_exceeded.incrementAndGet();
                } else {
                    hbase_errors.incrementAndGet();
                }
                if (show_details) {
                    details.add(getHttpDetails("Storage exception: " + arg.getMessage(), dp));
                }
                // we handle the storage exceptions here so as to avoid creating yet
                // another callback object on every data point.
                handleStorageException(tsdb, dp, arg);
                return false;
            }

            public String toString() {
                return "HTTP Put exception";
            }
        }
        final class SuccessCB implements Callback<Boolean, Object> {

            @Override
            public Boolean call(final Object obj) {
                switch(type) {
                    case PUT:
                        raw_stored.incrementAndGet();
                        break;
                    case ROLLUP:
                        rollup_stored.incrementAndGet();
                        break;
                    case HISTOGRAM:
                        raw_histograms_stored.incrementAndGet();
                        break;
                    default:
                }
                return true;
            }
        }
        try {
            if (dp == null) {
                if (show_details) {
                    details.add(this.getHttpDetails("Unexpected null datapoint encountered in set.", dp));
                }
                LOG.warn("Datapoint null was encountered in set.");
                illegal_arguments.incrementAndGet();
                continue;
            }
            if (!dp.validate(details)) {
                illegal_arguments.incrementAndGet();
                continue;
            }
            // TODO - refactor the add calls someday or move some of this into the
            // actual data point class.
            final Deferred<Boolean> deferred;
            if (type == DataPointType.HISTOGRAM) {
                final HistogramPojo pojo = (HistogramPojo) dp;
                // validation and/or conversion before storage of histograms by
                // decoding then re-encoding.
                final Histogram hdp;
                if (Strings.isNullOrEmpty(dp.getValue())) {
                    hdp = pojo.toSimpleHistogram(tsdb);
                } else {
                    hdp = tsdb.histogramManager().decode(pojo.getId(), pojo.getBytes(), false);
                }
                deferred = tsdb.addHistogramPoint(pojo.getMetric(), pojo.getTimestamp(), tsdb.histogramManager().encode(hdp.getId(), hdp, true), pojo.getTags()).addCallback(new SuccessCB()).addErrback(new PutErrback());
            } else {
                if (Tags.looksLikeInteger(dp.getValue())) {
                    switch(type) {
                        case ROLLUP:
                            {
                                final RollUpDataPoint rdp = (RollUpDataPoint) dp;
                                deferred = tsdb.addAggregatePoint(rdp.getMetric(), rdp.getTimestamp(), Tags.parseLong(rdp.getValue()), dp.getTags(), rdp.getGroupByAggregator() != null, rdp.getInterval(), rdp.getAggregator(), rdp.getGroupByAggregator()).addCallback(new SuccessCB()).addErrback(new PutErrback());
                                break;
                            }
                        default:
                            deferred = tsdb.addPoint(dp.getMetric(), dp.getTimestamp(), Tags.parseLong(dp.getValue()), dp.getTags()).addCallback(new SuccessCB()).addErrback(new PutErrback());
                    }
                } else {
                    switch(type) {
                        case ROLLUP:
                            {
                                final RollUpDataPoint rdp = (RollUpDataPoint) dp;
                                deferred = tsdb.addAggregatePoint(rdp.getMetric(), rdp.getTimestamp(), (Tags.fitsInFloat(dp.getValue()) ? Float.parseFloat(dp.getValue()) : Double.parseDouble(dp.getValue())), dp.getTags(), rdp.getGroupByAggregator() != null, rdp.getInterval(), rdp.getAggregator(), rdp.getGroupByAggregator()).addCallback(new SuccessCB()).addErrback(new PutErrback());
                                break;
                            }
                        default:
                            deferred = tsdb.addPoint(dp.getMetric(), dp.getTimestamp(), (Tags.fitsInFloat(dp.getValue()) ? Float.parseFloat(dp.getValue()) : Double.parseDouble(dp.getValue())), dp.getTags()).addCallback(new SuccessCB()).addErrback(new PutErrback());
                    }
                }
            }
            ++queued;
            if (synchronous) {
                deferreds.add(deferred);
            }
        } catch (NumberFormatException x) {
            if (show_details) {
                details.add(getHttpDetails("Unable to parse value to a number", dp));
            }
            LOG.warn("Unable to parse value to a number: " + dp);
            invalid_values.incrementAndGet();
        } catch (IllegalArgumentException iae) {
            if (show_details) {
                details.add(getHttpDetails(iae.getMessage(), dp));
            }
            LOG.warn(iae.getMessage() + ": " + dp);
            illegal_arguments.incrementAndGet();
        } catch (NoSuchUniqueName nsu) {
            if (show_details) {
                details.add(getHttpDetails("Unknown metric", dp));
            }
            LOG.warn("Unknown metric: " + dp);
            unknown_metrics.incrementAndGet();
        } catch (PleaseThrottleException x) {
            handleStorageException(tsdb, dp, x);
            if (show_details) {
                details.add(getHttpDetails("Please throttle", dp));
            }
            inflight_exceeded.incrementAndGet();
        } catch (TimeoutException tex) {
            handleStorageException(tsdb, dp, tex);
            if (show_details) {
                details.add(getHttpDetails("Timeout exception", dp));
            }
            requests_timedout.incrementAndGet();
        /*} catch (NoSuchUniqueNameInCache x) {
        handleStorageException(tsdb, dp, x);
        if (show_details) {
          details.add(getHttpDetails("Not cached yet", dp));
        } */
        } catch (RuntimeException e) {
            if (show_details) {
                details.add(getHttpDetails("Unexpected exception", dp));
            }
            LOG.warn("Unexpected exception: " + dp, e);
            unknown_errors.incrementAndGet();
        }
    }
    /**
     * A timer task that will respond to the user with the number of timeouts
     * for synchronous writes.
     */
    class PutTimeout implements TimerTask {

        final int queued;

        public PutTimeout(final int queued) {
            this.queued = queued;
        }

        @Override
        public void run(final Timeout timeout) throws Exception {
            if (sending_response.get()) {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Put data point call " + query + " already responded successfully");
                }
                return;
            } else {
                sending_response.set(true);
            }
            // figure out how many writes are outstanding
            int good_writes = 0;
            int failed_writes = 0;
            int timeouts = 0;
            for (int i = 0; i < deferreds.size(); i++) {
                try {
                    if (deferreds.get(i).join(1)) {
                        ++good_writes;
                    } else {
                        ++failed_writes;
                    }
                } catch (TimeoutException te) {
                    if (show_details) {
                        details.add(getHttpDetails("Write timedout", dps.get(i)));
                    }
                    ++timeouts;
                }
            }
            writes_timedout.addAndGet(timeouts);
            final int failures = dps.size() - queued;
            if (!show_summary && !show_details) {
                query.sendReply(HttpResponseStatus.BAD_REQUEST, query.serializer().formatErrorV1(new BadRequestException(HttpResponseStatus.BAD_REQUEST, "The put call has timedout with " + good_writes + " successful writes, " + failed_writes + " failed writes and " + timeouts + " timed out writes.", "Please see the TSD logs or append \"details\" to the put request")));
            } else {
                final HashMap<String, Object> summary = new HashMap<String, Object>();
                summary.put("success", good_writes);
                summary.put("failed", failures + failed_writes);
                summary.put("timeouts", timeouts);
                if (show_details) {
                    summary.put("errors", details);
                }
                query.sendReply(HttpResponseStatus.BAD_REQUEST, query.serializer().formatPutV1(summary));
            }
        }
    }
    // now after everything has been sent we can schedule a timeout if so
    // the caller asked for a synchronous write.
    final Timeout timeout = sync_timeout > 0 ? tsdb.getTimer().newTimeout(new PutTimeout(queued), sync_timeout, TimeUnit.MILLISECONDS) : null;
    /**
     * Serializes the response to the client
     */
    class GroupCB implements Callback<Object, ArrayList<Boolean>> {

        final int queued;

        public GroupCB(final int queued) {
            this.queued = queued;
        }

        @Override
        public Object call(final ArrayList<Boolean> results) {
            if (sending_response.get()) {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Put data point call " + query + " was marked as timedout");
                }
                return null;
            } else {
                sending_response.set(true);
                if (timeout != null) {
                    timeout.cancel();
                }
            }
            int good_writes = 0;
            int failed_writes = 0;
            for (final boolean result : results) {
                if (result) {
                    ++good_writes;
                } else {
                    ++failed_writes;
                }
            }
            final int failures = dps.size() - queued;
            if (!show_summary && !show_details) {
                if (failures + failed_writes > 0) {
                    query.sendReply(HttpResponseStatus.BAD_REQUEST, query.serializer().formatErrorV1(new BadRequestException(HttpResponseStatus.BAD_REQUEST, "One or more data points had errors", "Please see the TSD logs or append \"details\" to the put request")));
                } else {
                    query.sendReply(HttpResponseStatus.NO_CONTENT, "".getBytes());
                }
            } else {
                final HashMap<String, Object> summary = new HashMap<String, Object>();
                if (sync_timeout > 0) {
                    summary.put("timeouts", 0);
                }
                summary.put("success", results.isEmpty() ? queued : good_writes);
                summary.put("failed", failures + failed_writes);
                if (show_details) {
                    summary.put("errors", details);
                }
                if (failures > 0) {
                    query.sendReply(HttpResponseStatus.BAD_REQUEST, query.serializer().formatPutV1(summary));
                } else {
                    query.sendReply(query.serializer().formatPutV1(summary));
                }
            }
            return null;
        }

        @Override
        public String toString() {
            return "put data point serialization callback";
        }
    }
    /**
     * Catches any unexpected exceptions thrown in the callback chain
     */
    class ErrCB implements Callback<Object, Exception> {

        @Override
        public Object call(final Exception e) throws Exception {
            if (sending_response.get()) {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("ERROR point call " + query + " was marked as timedout", e);
                }
                return null;
            } else {
                sending_response.set(true);
                if (timeout != null) {
                    timeout.cancel();
                }
            }
            LOG.error("Unexpected exception", e);
            throw new RuntimeException("Unexpected exception", e);
        }

        @Override
        public String toString() {
            return "put data point error callback";
        }
    }
    if (synchronous) {
        Deferred.groupInOrder(deferreds).addCallback(new GroupCB(queued)).addErrback(new ErrCB());
    } else {
        new GroupCB(queued).call(EMPTY_DEFERREDS);
    }
}