Examples with DDStatsCapacityInfo com.emc.storageos.datadomain.restapi.model.DDStatsCapacityInfo used on opensource projects

Example 1 with DDStatsCapacityInfo

use of com.emc.storageos.datadomain.restapi.model.DDStatsCapacityInfo in project coprhd-controller by CoprHD.

the class DataDomainCommunicationInterface method collectStatisticsInformation.

@Override
public void collectStatisticsInformation(AccessProfile accessProfile) throws BaseCollectionException, DataDomainApiException {
    long statsCount = 0;
    URI storageSystemId = null;
    StorageSystem storageSystem = null;
    try {
        _log.info("Stats collection for {} using ip {}", accessProfile.getSystemId(), accessProfile.getIpAddress());
        storageSystemId = accessProfile.getSystemId();
        storageSystem = _dbClient.queryObject(StorageSystem.class, storageSystemId);
        initializeKeyMap(accessProfile);
        DataDomainClient ddClient = getDataDomainClient(accessProfile);
        URI providerId = storageSystem.getActiveProviderURI();
        StorageProvider provider = _dbClient.queryObject(StorageProvider.class, providerId);
        ZeroRecordGenerator zeroRecordGenerator = new FileZeroRecordGenerator();
        CassandraInsertion statsColumnInjector = new FileDBInsertion();
        DataDomainStatsRecorder recorder = new DataDomainStatsRecorder(zeroRecordGenerator, statsColumnInjector);
        // Stats collection start time
        long statsCollectionStartTime = storageSystem.getLastMeteringRunTime();
        // start time to the time the storage system was successfully discovered.
        if (statsCollectionStartTime == 0) {
            statsCollectionStartTime = storageSystem.getSuccessDiscoveryTime();
        }
        // Stats collection end time
        long statsCollectionEndTime = accessProfile.getCurrentSampleTime();
        _keyMap.put(Constants._TimeCollected, statsCollectionEndTime);
        // Get list of file systems on the device that are in the DB
        List<URI> fsUris = zeroRecordGenerator.extractVolumesOrFileSharesFromDB(storageSystemId, _dbClient, FileShare.class);
        List<FileShare> fsObjs = _dbClient.queryObject(FileShare.class, fsUris, true);
        // Get capacity usage info on individual mtrees
        List<Stat> stats = new ArrayList<>();
        for (FileShare fileSystem : fsObjs) {
            String fsNativeId = fileSystem.getNativeId();
            String fsNativeGuid = fileSystem.getNativeGuid();
            // Retrieve the last 2 data points only
            int entriesRetrieved = 0;
            List<DDStatsCapacityInfo> statsCapInfos = new ArrayList<>();
            // Default
            DDStatsIntervalQuery granularity = DDStatsIntervalQuery.hour;
            // Retrieve hourly data - lowest resolution supported by DD arrays.
            try {
                DDMtreeCapacityInfos mtreeCapInfo = ddClient.getMTreeCapacityInfo(storageSystem.getNativeGuid(), fsNativeId, DataDomainApiConstants.STATS_FIRST_PAGE, DataDomainApiConstants.STATS_PAGE_SIZE, DDStatsDataViewQuery.absolute, DDStatsIntervalQuery.hour, true, DataDomainApiConstants.DESCENDING_SORT);
                entriesRetrieved += mtreeCapInfo.getPagingInfo().getPageEntries();
                // Collect stats
                List<DDStatsCapacityInfo> capacityInfos = mtreeCapInfo.getStatsCapacityInfo();
                if (capacityInfos != null) {
                    statsCapInfos.addAll(capacityInfos);
                }
                statsCount += entriesRetrieved;
            } catch (Exception e) {
                _log.info("Stats collection info not found for fileNativeGuid ", fsNativeGuid);
                continue;
            }
            // Retrieved all pages, now save in DB if info changed in the latest data point
            long usedCapacity = 0;
            if (fileSystem.getUsedCapacity() != null) {
                usedCapacity = fileSystem.getUsedCapacity();
            }
            DDStatsCapacityInfo statsCapInfo = null;
            Stat stat = null;
            if (statsCapInfos != null && !statsCapInfos.isEmpty()) {
                statsCapInfo = statsCapInfos.get(0);
                _keyMap.put(Constants._Granularity, granularity);
                stat = recorder.addUsageInfo(statsCapInfo, _keyMap, fsNativeGuid, ddClient);
            }
            // Persist FileShare capacity stats only if usage info has changed
            long allocatedCapacity = 0;
            if (stat != null) {
                allocatedCapacity = stat.getAllocatedCapacity();
            }
            // TODO: a method to detect changes in stats will be useful
            boolean statsChanged = (usedCapacity != allocatedCapacity) ? true : false;
            if ((stat != null) && (!fileSystem.getInactive()) && (statsChanged)) {
                stats.add(stat);
                fileSystem.setUsedCapacity(allocatedCapacity);
                fileSystem.setCapacity(stat.getProvisionedCapacity());
                _dbClient.persistObject(fileSystem);
            }
        }
        // Determine if a filesystems were deleted from this device and write zero records for deleted ones
        zeroRecordGenerator.identifyRecordstobeZeroed(_keyMap, stats, FileShare.class);
        persistStatsInDB(stats);
        // TODO: Metering task completer will overwrite currTime below with a new
        // time as the last collection time. To avoid this, setLastTime in
        // MeteringTaskCompleter should be modified to set last metering run time
        // only if it
        storageSystem.setLastMeteringRunTime(statsCollectionEndTime);
        _log.info("Done metering device {}, processed {} file system stats ", storageSystemId, statsCount);
        _log.info("End collecting statistics for ip address {}", accessProfile.getIpAddress());
    } catch (Exception e) {
        _log.error("CollectStatisticsInformation failed. Storage system: " + storageSystemId, e);
        throw DataDomainApiException.exceptions.statsCollectionFailed(e.getMessage());
    }
}