Java Code Examples for org.apache.hadoop.hbase.HConstants#DEFAULT_HBASE_CLIENT_SCANNER_CACHING
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org.apache.hadoop.hbase.HConstants#DEFAULT_HBASE_CLIENT_SCANNER_CACHING .
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Example 1
Source File: ConnectionConfiguration.java From hbase with Apache License 2.0 | 6 votes |
/** * Constructor * This is for internal testing purpose (using the default value). * In real usage, we should read the configuration from the Configuration object. */ @VisibleForTesting protected ConnectionConfiguration() { this.writeBufferSize = WRITE_BUFFER_SIZE_DEFAULT; this.writeBufferPeriodicFlushTimeoutMs = WRITE_BUFFER_PERIODIC_FLUSH_TIMEOUT_MS_DEFAULT; this.writeBufferPeriodicFlushTimerTickMs = WRITE_BUFFER_PERIODIC_FLUSH_TIMERTICK_MS_DEFAULT; this.metaOperationTimeout = HConstants.DEFAULT_HBASE_CLIENT_OPERATION_TIMEOUT; this.operationTimeout = HConstants.DEFAULT_HBASE_CLIENT_OPERATION_TIMEOUT; this.scannerCaching = HConstants.DEFAULT_HBASE_CLIENT_SCANNER_CACHING; this.scannerMaxResultSize = HConstants.DEFAULT_HBASE_CLIENT_SCANNER_MAX_RESULT_SIZE; this.primaryCallTimeoutMicroSecond = 10000; this.replicaCallTimeoutMicroSecondScan = 1000000; this.metaReplicaCallTimeoutMicroSecondScan = HConstants.HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT_DEFAULT; this.retries = HConstants.DEFAULT_HBASE_CLIENT_RETRIES_NUMBER; this.clientScannerAsyncPrefetch = Scan.DEFAULT_HBASE_CLIENT_SCANNER_ASYNC_PREFETCH; this.maxKeyValueSize = MAX_KEYVALUE_SIZE_DEFAULT; this.readRpcTimeout = HConstants.DEFAULT_HBASE_RPC_TIMEOUT; this.writeRpcTimeout = HConstants.DEFAULT_HBASE_RPC_TIMEOUT; this.rpcTimeout = HConstants.DEFAULT_HBASE_RPC_TIMEOUT; }
Example 2
Source File: HBaseOperations.java From geowave with Apache License 2.0 | 5 votes |
public int getScanCacheSize() { if (options != null) { if (options.getScanCacheSize() != HConstants.DEFAULT_HBASE_CLIENT_SCANNER_CACHING) { return options.getScanCacheSize(); } } // Need to get default from config. return 10000; }
Example 3
Source File: AggregationEndpoint.java From geowave with Apache License 2.0 | 4 votes |
private Object getValue( final Aggregation aggregation, final Filter filter, final DataTypeAdapter dataAdapter, final Short internalAdapterId, final HBaseDistributableFilter hdFilter, final boolean blockCaching, final int scanCacheSize, final String[] authorizations) throws IOException { final Scan scan = new Scan(); scan.setMaxVersions(1); scan.setCacheBlocks(blockCaching); if (scanCacheSize != HConstants.DEFAULT_HBASE_CLIENT_SCANNER_CACHING) { scan.setCaching(scanCacheSize); } if (filter != null) { scan.setFilter(filter); } if (internalAdapterId != null) { scan.addFamily(StringUtils.stringToBinary(ByteArrayUtils.shortToString(internalAdapterId))); } if (authorizations != null) { scan.setAuthorizations(new Authorizations(authorizations)); } env.getRegion().getCoprocessorHost().preScannerOpen(scan); try (InternalScanner scanner = env.getRegion().getScanner(scan)) { final List<Cell> results = new ArrayList<>(); boolean hasNext; do { hasNext = scanner.next(results); if (!results.isEmpty()) { if (hdFilter != null) { if (dataAdapter != null) { final Object row = hdFilter.decodeRow(dataAdapter); if (row != null) { aggregation.aggregate(row); } else { LOGGER.error("DataAdapter failed to decode row"); } } else { aggregation.aggregate(hdFilter.getPersistenceEncoding()); } } else { aggregation.aggregate(null); } results.clear(); } } while (hasNext); } return aggregation.getResult(); }