idx int64 0 165k | question stringlengths 73 4.15k | target stringlengths 5 918 | len_question int64 21 890 | len_target int64 3 255 |
|---|---|---|---|---|
155,400 | public void writeAll ( java . sql . ResultSet rs , boolean includeColumnNames ) throws SQLException , IOException { if ( includeColumnNames ) { writeColumnNames ( rs ) ; } while ( rs . next ( ) ) { writeNext ( resultService . getColumnValues ( rs ) ) ; } } | Writes the entire ResultSet to a CSV file . | 67 | 11 |
155,401 | public void addRecord ( String key , String value ) throws TarMalformatException , IOException { if ( key == null || value == null || key . length ( ) < 1 || value . length ( ) < 1 ) { throw new TarMalformatException ( RB . singleton . getString ( RB . ZERO_WRITE ) ) ; } int lenWithoutIlen = key . length ( ) + value . ... | I guess the initial length field is supposed to be in units of characters not bytes? | 366 | 17 |
155,402 | synchronized public void shutdown ( ) { m_shutdown . set ( true ) ; if ( m_isExecutorServiceLocal ) { try { m_es . shutdown ( ) ; m_es . awaitTermination ( 365 , TimeUnit . DAYS ) ; } catch ( InterruptedException e ) { repairLog . warn ( "Unexpected interrupted exception" , e ) ; } } } | shutdown silences the babysitter and causes watches to not reset . Note that shutting down will churn ephemeral ZK nodes - shutdown allows the programmer to not set watches on nodes from terminated session . | 84 | 41 |
155,403 | public static Pair < BabySitter , List < String > > blockingFactory ( ZooKeeper zk , String dir , Callback cb ) throws InterruptedException , ExecutionException { ExecutorService es = CoreUtils . getCachedSingleThreadExecutor ( "Babysitter-" + dir , 15000 ) ; Pair < BabySitter , List < String > > babySitter = blockingF... | Create a new BabySitter and block on reading the initial children list . | 122 | 15 |
155,404 | public static Pair < BabySitter , List < String > > blockingFactory ( ZooKeeper zk , String dir , Callback cb , ExecutorService es ) throws InterruptedException , ExecutionException { BabySitter bs = new BabySitter ( zk , dir , cb , es ) ; List < String > initialChildren ; try { initialChildren = bs . m_eventHandler . ... | Create a new BabySitter and block on reading the initial children list . Use the provided ExecutorService to queue events to rather than creating a private ExecutorService . The initial set of children will be retrieved in the current thread and not the ExecutorService because it is assumed this is being called from th... | 127 | 65 |
155,405 | public static BabySitter nonblockingFactory ( ZooKeeper zk , String dir , Callback cb , ExecutorService es ) throws InterruptedException , ExecutionException { BabySitter bs = new BabySitter ( zk , dir , cb , es ) ; bs . m_es . submit ( bs . m_eventHandler ) ; return bs ; } | Create a new BabySitter and make sure it reads the initial children list . Use the provided ExecutorService to queue events to rather than creating a private ExecutorService . | 81 | 35 |
155,406 | void checkClosed ( ) throws SQLException { if ( isClosed ) { throw Util . sqlException ( ErrorCode . X_07501 ) ; } if ( connection . isClosed ) { close ( ) ; throw Util . sqlException ( ErrorCode . X_08503 ) ; } } | An internal check for closed statements . | 67 | 7 |
155,407 | void performPostExecute ( ) throws SQLException { resultOut . clearLobResults ( ) ; generatedResult = null ; if ( resultIn == null ) { return ; } Result current = resultIn ; while ( current . getChainedResult ( ) != null ) { current = current . getUnlinkChainedResult ( ) ; if ( current . getType ( ) == ResultConstants ... | processes chained warnings and any generated columns result set | 222 | 10 |
155,408 | boolean getMoreResults ( int current ) throws SQLException { checkClosed ( ) ; if ( resultIn == null || ! resultIn . isData ( ) ) { return false ; } if ( resultSetCounter == 0 ) { resultSetCounter ++ ; return true ; } if ( currentResultSet != null && current != KEEP_CURRENT_RESULT ) { currentResultSet . close ( ) ; } r... | Note yet correct for multiple ResultSets . Should keep track of the previous ResultSet objects to be able to close them | 98 | 24 |
155,409 | void closeResultData ( ) throws SQLException { if ( currentResultSet != null ) { currentResultSet . close ( ) ; } if ( generatedResultSet != null ) { generatedResultSet . close ( ) ; } generatedResultSet = null ; generatedResult = null ; resultIn = null ; } | See comment for getMoreResults . | 65 | 7 |
155,410 | public boolean compatibleWithTable ( VoltTable table ) { String candidateName = getTableName ( table ) ; // table can't have the same name as the view if ( candidateName . equals ( viewName ) ) { return false ; } // view is for a different table if ( candidateName . equals ( srcTableName ) == false ) { return false ; }... | Check if the view could apply to the provided table unchanged . | 269 | 12 |
155,411 | @ Beta @ GwtIncompatible // concurrency public static ThreadFactory platformThreadFactory ( ) { if ( ! isAppEngine ( ) ) { return Executors . defaultThreadFactory ( ) ; } try { return ( ThreadFactory ) Class . forName ( "com.google_voltpatches.appengine.api.ThreadManager" ) . getMethod ( "currentRequestThreadFactory" )... | Returns a default thread factory used to create new threads . | 210 | 11 |
155,412 | public static void verifySnapshots ( final List < String > directories , final Set < String > snapshotNames ) { FileFilter filter = new SnapshotFilter ( ) ; if ( ! snapshotNames . isEmpty ( ) ) { filter = new SpecificSnapshotFilter ( snapshotNames ) ; } Map < String , Snapshot > snapshots = new HashMap < String , Snaps... | Perform snapshot verification . | 213 | 5 |
155,413 | public long lowestEquivalentValue ( final long value ) { final int bucketIndex = getBucketIndex ( value ) ; final int subBucketIndex = getSubBucketIndex ( value , bucketIndex ) ; long thisValueBaseLevel = valueFromIndex ( bucketIndex , subBucketIndex ) ; return thisValueBaseLevel ; } | Get the lowest value that is equivalent to the given value within the histogram s resolution . Where equivalent means that value samples recorded for any two equivalent values are counted in a common total count . | 70 | 38 |
155,414 | public double getMean ( ) { if ( getTotalCount ( ) == 0 ) { return 0.0 ; } recordedValuesIterator . reset ( ) ; double totalValue = 0 ; while ( recordedValuesIterator . hasNext ( ) ) { HistogramIterationValue iterationValue = recordedValuesIterator . next ( ) ; totalValue += medianEquivalentValue ( iterationValue . get... | Get the computed mean value of all recorded values in the histogram | 118 | 13 |
155,415 | public double getStdDeviation ( ) { if ( getTotalCount ( ) == 0 ) { return 0.0 ; } final double mean = getMean ( ) ; double geometric_deviation_total = 0.0 ; recordedValuesIterator . reset ( ) ; while ( recordedValuesIterator . hasNext ( ) ) { HistogramIterationValue iterationValue = recordedValuesIterator . next ( ) ;... | Get the computed standard deviation of all recorded values in the histogram | 173 | 13 |
155,416 | public void reestablishTotalCount ( ) { // On overflow, the totalCount accumulated counter will (always) not match the total of counts long totalCounted = 0 ; for ( int i = 0 ; i < countsArrayLength ; i ++ ) { totalCounted += getCountAtIndex ( i ) ; } setTotalCount ( totalCounted ) ; } | Reestablish the internal notion of totalCount by recalculating it from recorded values . | 75 | 17 |
155,417 | static void setTableColumnsForSubquery ( Table table , QueryExpression queryExpression , boolean fullIndex ) { table . columnList = queryExpression . getColumns ( ) ; table . columnCount = queryExpression . getColumnCount ( ) ; table . createPrimaryKey ( ) ; if ( fullIndex ) { int [ ] colIndexes = null ; colIndexes = t... | For table subqueries | 124 | 5 |
155,418 | public void considerCandidatePlan ( CompiledPlan plan , AbstractParsedStmt parsedStmt ) { //System.out.println(String.format("[Raw plan]:%n%s", rawplan.rootPlanGraph.toExplainPlanString())); // run the set of microptimizations, which may return many plans (or not) ScanDeterminizer . apply ( plan , m_detMode ) ; // add ... | Picks the best cost plan for a given raw plan | 345 | 11 |
155,419 | public static PartitionDRGateway getInstance ( int partitionId , ProducerDRGateway producerGateway , StartAction startAction ) { // if this is a primary cluster in a DR-enabled scenario // try to load the real version of this class PartitionDRGateway pdrg = null ; if ( producerGateway != null ) { pdrg = tryToLoadProVer... | Load the full subclass if it should otherwise load the noop stub . | 272 | 14 |
155,420 | public String [ ] getUserPermissionList ( String userName ) { if ( ! m_enabled ) { return m_perm_list ; } if ( userName == null ) { return new String [ ] { } ; } AuthUser user = getUser ( userName ) ; if ( user == null ) { return new String [ ] { } ; } return user . m_permissions_list ; } | Get users permission list not god for permission checking . | 86 | 10 |
155,421 | public void callProcedure ( AuthUser user , boolean isAdmin , int timeout , ProcedureCallback cb , String procName , Object [ ] args ) { // since we know the caller, this is safe assert ( cb != null ) ; StoredProcedureInvocation task = new StoredProcedureInvocation ( ) ; task . setProcName ( procName ) ; task . setPara... | Used to call a procedure from NTPRocedureRunner Calls createTransaction with the proper params | 354 | 19 |
155,422 | public static void printSystemOut ( String message1 , long message2 ) { if ( TRACESYSTEMOUT ) { System . out . print ( message1 ) ; System . out . println ( message2 ) ; } } | Used to print messages to System . out | 48 | 8 |
155,423 | public static boolean acceptsPrecision ( int type ) { switch ( type ) { case Types . SQL_BINARY : case Types . SQL_BIT : case Types . SQL_BIT_VARYING : case Types . SQL_BLOB : case Types . SQL_CHAR : case Types . SQL_NCHAR : case Types . SQL_CLOB : case Types . NCLOB : case Types . SQL_VARBINARY : case Types . SQL_VARC... | Types that accept precision params in column definition or casts . CHAR VARCHAR and VARCHAR_IGNORECASE params are ignored when the sql . enforce_strict_types is false . | 361 | 40 |
155,424 | public static < T > Iterable < T > cycle ( T ... elements ) { return cycle ( Lists . newArrayList ( elements ) ) ; } | Returns an iterable whose iterators cycle indefinitely over the provided elements . | 31 | 14 |
155,425 | @ Override protected void coreLoadCatalog ( long timestamp , final byte [ ] catalogBytes ) throws EEException { LOG . trace ( "Loading Application Catalog..." ) ; int errorCode = 0 ; errorCode = nativeLoadCatalog ( pointer , timestamp , catalogBytes ) ; checkErrorCode ( errorCode ) ; //LOG.info("Loaded Catalog."); } | Provide a serialized catalog and initialize version 0 of the engine s catalog . | 74 | 16 |
155,426 | @ Override public void coreUpdateCatalog ( long timestamp , boolean isStreamUpdate , final String catalogDiffs ) throws EEException { LOG . trace ( "Loading Application Catalog..." ) ; int errorCode = 0 ; errorCode = nativeUpdateCatalog ( pointer , timestamp , isStreamUpdate , getStringBytes ( catalogDiffs ) ) ; checkE... | Provide a catalog diff and a new catalog version and update the engine s catalog . | 78 | 17 |
155,427 | @ Override public int extractPerFragmentStats ( int batchSize , long [ ] executionTimesOut ) { m_perFragmentStatsBuffer . clear ( ) ; // Discard the first byte since it is the timing on/off switch. m_perFragmentStatsBuffer . get ( ) ; int succeededFragmentsCount = m_perFragmentStatsBuffer . getInt ( ) ; if ( executionT... | Extract the per - fragment stats from the buffer . | 200 | 11 |
155,428 | @ Override public VoltTable [ ] getStats ( final StatsSelector selector , final int locators [ ] , final boolean interval , final Long now ) { //Clear is destructive, do it before the native call m_nextDeserializer . clear ( ) ; final int numResults = nativeGetStats ( pointer , selector . ordinal ( ) , locators , inter... | Retrieve a set of statistics using the specified selector from the StatisticsSelector enum . | 319 | 17 |
155,429 | public boolean storeLargeTempTableBlock ( long siteId , long blockCounter , ByteBuffer block ) { LargeBlockTask task = LargeBlockTask . getStoreTask ( new BlockId ( siteId , blockCounter ) , block ) ; return executeLargeBlockTaskSynchronously ( task ) ; } | Store a large temp table block to disk . | 61 | 9 |
155,430 | public boolean loadLargeTempTableBlock ( long siteId , long blockCounter , ByteBuffer block ) { LargeBlockTask task = LargeBlockTask . getLoadTask ( new BlockId ( siteId , blockCounter ) , block ) ; return executeLargeBlockTaskSynchronously ( task ) ; } | Read a large table block from disk and write it to a ByteBuffer . Block will still be stored on disk when this operation completes . | 61 | 27 |
155,431 | public boolean releaseLargeTempTableBlock ( long siteId , long blockCounter ) { LargeBlockTask task = LargeBlockTask . getReleaseTask ( new BlockId ( siteId , blockCounter ) ) ; return executeLargeBlockTaskSynchronously ( task ) ; } | Delete the block with the given id from disk . | 55 | 10 |
155,432 | public List < String > getSQLStatements ( ) { List < String > sqlStatements = new ArrayList <> ( plannedStatements . size ( ) ) ; for ( AdHocPlannedStatement plannedStatement : plannedStatements ) { sqlStatements . add ( new String ( plannedStatement . sql , Constants . UTF8ENCODING ) ) ; } return sqlStatements ; } | Retrieve all the SQL statement text as a list of strings . | 83 | 13 |
155,433 | public boolean isSinglePartitionCompatible ( ) { for ( AdHocPlannedStatement plannedStmt : plannedStatements ) { if ( plannedStmt . core . collectorFragment != null ) { return false ; } } return true ; } | Detect if batch is compatible with single partition optimizations | 52 | 9 |
155,434 | public ByteBuffer flattenPlanArrayToBuffer ( ) throws IOException { int size = 0 ; // sizeof batch ParameterSet userParamCache = null ; if ( userParamSet == null ) { userParamCache = ParameterSet . emptyParameterSet ( ) ; } else { Object [ ] typedUserParams = new Object [ userParamSet . length ] ; int ii = 0 ; for ( Ad... | For convenience serialization is accomplished with this single method but deserialization is piecemeal via the static methods userParamsFromBuffer and planArrayFromBuffer with no dummy AdHocPlannedStmtBatch receiver instance required . | 525 | 47 |
155,435 | public String explainStatement ( int i , Database db , boolean getJSONString ) { AdHocPlannedStatement plannedStatement = plannedStatements . get ( i ) ; String aggplan = new String ( plannedStatement . core . aggregatorFragment , Constants . UTF8ENCODING ) ; PlanNodeTree pnt = new PlanNodeTree ( ) ; try { String resul... | Return the EXPLAIN string of the batched statement at the index | 360 | 14 |
155,436 | public synchronized static AdHocCompilerCache getCacheForCatalogHash ( byte [ ] catalogHash ) { String hashString = Encoder . hexEncode ( catalogHash ) ; AdHocCompilerCache cache = m_catalogHashMatch . getIfPresent ( hashString ) ; if ( cache == null ) { cache = new AdHocCompilerCache ( ) ; m_catalogHashMatch . put ( h... | Get the global cache for a given hash of the catalog . Note that there can be only one cache per catalogHash at a time . | 99 | 27 |
155,437 | synchronized void printStats ( ) { String line1 = String . format ( "CACHE STATS - Literals: Hits %d/%d (%.1f%%), Inserts %d Evictions %d\n" , m_literalHits , m_literalQueries , ( m_literalHits * 100.0 ) / m_literalQueries , m_literalInsertions , m_literalEvictions ) ; String line2 = String . format ( "CACHE STATS - Pl... | Stats printing method used during development . Probably shouldn t live past real stats integration . | 275 | 16 |
155,438 | public synchronized void put ( String sql , String parsedToken , AdHocPlannedStatement planIn , String [ ] extractedLiterals , boolean hasUserQuestionMarkParameters , boolean hasAutoParameterizedException ) { assert ( sql != null ) ; assert ( parsedToken != null ) ; assert ( planIn != null ) ; AdHocPlannedStatement pla... | Called from the PlannerTool directly when it finishes planning . This is the only way to populate the cache . | 689 | 23 |
155,439 | public void startPeriodicStatsPrinting ( ) { if ( m_statsTimer == null ) { m_statsTimer = new Timer ( ) ; m_statsTimer . scheduleAtFixedRate ( new TimerTask ( ) { @ Override public void run ( ) { printStats ( ) ; } } , 5000 , 5000 ) ; } } | Start a timer that prints cache stats to the console every 5s . Used for development until we get better stats integration . | 74 | 24 |
155,440 | @ Override public Date getDate ( int parameterIndex , Calendar cal ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Retrieves the value of the designated JDBC DATE parameter as a java . sql . Date object using the given Calendar object to construct the date . | 39 | 31 |
155,441 | @ Override public Date getDate ( String parameterName , Calendar cal ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Retrieves the value of a JDBC DATE parameter as a java . sql . Date object using the given Calendar object to construct the date . | 39 | 30 |
155,442 | @ Override public Object getObject ( String parameterName , Map < String , Class < ? > > map ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Returns an object representing the value of OUT parameter parameterName and uses map for the custom mapping of the parameter value . | 47 | 23 |
155,443 | @ Override public Time getTime ( int parameterIndex , Calendar cal ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Retrieves the value of the designated JDBC TIME parameter as a java . sql . Time object using the given Calendar object to construct the time . | 39 | 30 |
155,444 | @ Override public Time getTime ( String parameterName , Calendar cal ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Retrieves the value of a JDBC TIME parameter as a java . sql . Time object using the given Calendar object to construct the time . | 39 | 29 |
155,445 | @ Override public Timestamp getTimestamp ( int parameterIndex , Calendar cal ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Retrieves the value of the designated JDBC TIMESTAMP parameter as a java . sql . Timestamp object using the given Calendar object to construct the Timestamp object . | 41 | 35 |
155,446 | @ Override public Timestamp getTimestamp ( String parameterName , Calendar cal ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Retrieves the value of a JDBC TIMESTAMP parameter as a java . sql . Timestamp object using the given Calendar object to construct the Timestamp object . | 41 | 34 |
155,447 | @ Override public void registerOutParameter ( String parameterName , int sqlType , int scale ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Registers the parameter named parameterName to be of JDBC type sqlType . | 44 | 16 |
155,448 | @ Override public void setNString ( String parameterName , String value ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Sets the designated parameter to the given String object . | 40 | 11 |
155,449 | @ Override public void setURL ( String parameterName , URL val ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Sets the designated parameter to the given java . net . URL object . | 39 | 15 |
155,450 | public static String suffixHSIdsWithMigratePartitionLeaderRequest ( Long HSId ) { return Long . toString ( Long . MAX_VALUE ) + "/" + Long . toString ( HSId ) + migrate_partition_leader_suffix ; } | Generate a HSID string with BALANCE_SPI_SUFFIX information . When this string is updated we can tell the reason why HSID is changed . | 56 | 34 |
155,451 | public void startPartitionWatch ( ) throws InterruptedException , ExecutionException { Future < ? > task = m_es . submit ( new PartitionWatchEvent ( ) ) ; task . get ( ) ; } | Initialized and start watching partition level cache this function is blocking . | 44 | 12 |
155,452 | private void processPartitionWatchEvent ( ) throws KeeperException , InterruptedException { try { m_zk . create ( m_rootNode , null , Ids . OPEN_ACL_UNSAFE , CreateMode . PERSISTENT ) ; m_zk . getData ( m_rootNode , m_childWatch , null ) ; } catch ( KeeperException . NodeExistsException e ) { m_zk . getData ( m_rootNod... | Race to create partition - specific zk node and put a watch on it . | 111 | 16 |
155,453 | public Object convertToDefaultType ( SessionInterface session , Object a ) { if ( a == null ) { return a ; } Type otherType ; if ( a instanceof Number ) { if ( a instanceof BigInteger ) { a = new BigDecimal ( ( BigInteger ) a ) ; } else if ( a instanceof Float ) { a = new Double ( ( ( Float ) a ) . doubleValue ( ) ) ; ... | Converts a value to this type | 658 | 7 |
155,454 | private static Double convertToDouble ( Object a ) { double value ; if ( a instanceof java . lang . Double ) { return ( Double ) a ; } else if ( a instanceof BigDecimal ) { BigDecimal bd = ( BigDecimal ) a ; value = bd . doubleValue ( ) ; int signum = bd . signum ( ) ; BigDecimal bdd = new BigDecimal ( value + signum )... | Converter from a numeric object to Double . Input is checked to be within range represented by Double | 165 | 20 |
155,455 | public Object mod ( Object a , Object b ) { if ( a == null || b == null ) { return null ; } switch ( typeCode ) { case Types . SQL_REAL : case Types . SQL_FLOAT : case Types . SQL_DOUBLE : { double ad = ( ( Number ) a ) . doubleValue ( ) ; double bd = ( ( Number ) b ) . doubleValue ( ) ; if ( bd == 0 ) { throw Error . ... | A VoltDB extension | 397 | 4 |
155,456 | public synchronized void write ( int c ) throws IOException { checkClosed ( ) ; int newcount = count + 1 ; if ( newcount > buf . length ) { buf = copyOf ( buf , Math . max ( buf . length << 1 , newcount ) ) ; } buf [ count ] = ( char ) c ; count = newcount ; } | Writes the specified single character . | 75 | 7 |
155,457 | private void initiateSPIMigrationIfRequested ( Iv2InitiateTaskMessage msg ) { if ( ! "@MigratePartitionLeader" . equals ( msg . getStoredProcedureName ( ) ) ) { return ; } final Object [ ] params = msg . getParameters ( ) ; int pid = Integer . parseInt ( params [ 1 ] . toString ( ) ) ; if ( pid != m_partitionId ) { tmL... | rerouted from this moment on until the transactions are correctly routed to new leader . | 566 | 16 |
155,458 | private boolean checkMisroutedIv2IntiateTaskMessage ( Iv2InitiateTaskMessage message ) { if ( message . isForReplica ( ) ) { return false ; } if ( m_scheduler . isLeader ( ) && m_migratePartitionLeaderStatus != MigratePartitionLeaderStatus . TXN_RESTART ) { //At this point, the message is sent to partition leader retur... | if these requests are intended for leader . Client interface will restart these transactions . | 348 | 15 |
155,459 | private boolean checkMisroutedFragmentTaskMessage ( FragmentTaskMessage message ) { if ( m_scheduler . isLeader ( ) || message . isForReplica ( ) ) { return false ; } TransactionState txnState = ( ( ( SpScheduler ) m_scheduler ) . getTransactionState ( message . getTxnId ( ) ) ) ; // If a fragment is part of a transact... | After MigratePartitionLeader has been requested the fragments which are sent to leader site should be restarted . | 436 | 22 |
155,460 | private void handleLogRequest ( VoltMessage message ) { Iv2RepairLogRequestMessage req = ( Iv2RepairLogRequestMessage ) message ; // It is possible for a dead host to queue messages after a repair request is processed // so make sure this can't happen by re-queuing this message after we know the dead host is gone // Si... | Produce the repair log . This is idempotent . | 484 | 13 |
155,461 | private void setMigratePartitionLeaderStatus ( MigratePartitionLeaderMessage message ) { //The host with old partition leader is down. if ( message . isStatusReset ( ) ) { m_migratePartitionLeaderStatus = MigratePartitionLeaderStatus . NONE ; return ; } if ( m_migratePartitionLeaderStatus == MigratePartitionLeaderStatu... | that previous partition leader has drained its txns | 263 | 9 |
155,462 | public void setMigratePartitionLeaderStatus ( boolean migratePartitionLeader ) { if ( ! migratePartitionLeader ) { m_migratePartitionLeaderStatus = MigratePartitionLeaderStatus . NONE ; m_newLeaderHSID = Long . MIN_VALUE ; return ; } //The previous leader has already drained all txns if ( m_migratePartitionLeaderStatus... | the site for new partition leader | 257 | 6 |
155,463 | public void notifyNewLeaderOfTxnDoneIfNeeded ( ) { //return quickly to avoid performance hit if ( m_newLeaderHSID == Long . MIN_VALUE ) { return ; } SpScheduler scheduler = ( SpScheduler ) m_scheduler ; if ( ! scheduler . txnDoneBeforeCheckPoint ( ) ) { return ; } MigratePartitionLeaderMessage message = new MigratePart... | Then new master can proceed to process transactions . | 253 | 9 |
155,464 | public void resetMigratePartitionLeaderStatus ( ) { m_scheduler . m_isLeader = true ; m_migratePartitionLeaderStatus = MigratePartitionLeaderStatus . NONE ; m_repairLog . setLeaderState ( true ) ; m_newLeaderHSID = Long . MIN_VALUE ; } | Reinstall the site as leader . | 70 | 7 |
155,465 | private Option resolveOption ( String opt ) { opt = Util . stripLeadingHyphens ( opt ) ; for ( Option option : options ) { if ( opt . equals ( option . getOpt ( ) ) ) { return option ; } if ( opt . equals ( option . getLongOpt ( ) ) ) { return option ; } } return null ; } | Retrieves the option object given the long or short option as a String | 75 | 15 |
155,466 | public String [ ] getArgs ( ) { String [ ] answer = new String [ args . size ( ) ] ; args . toArray ( answer ) ; return answer ; } | Retrieve any left - over non - recognized options and arguments | 36 | 12 |
155,467 | public boolean processScanNodeWithReAggNode ( AbstractPlanNode node , AbstractPlanNode reAggNode ) { // MV table scan node can not be in in-lined nodes. for ( int i = 0 ; i < node . getChildCount ( ) ; i ++ ) { AbstractPlanNode child = node . getChild ( i ) ; if ( child instanceof AbstractScanPlanNode ) { AbstractScanP... | Find the scan node on MV table replace it with reAggNode for join query . This scan node can not be in - lined so it should be as a child of a join node . | 246 | 38 |
155,468 | private void resolveColumnReferences ( ) { if ( isDistinctSelect || isGrouped ) { acceptsSequences = false ; } for ( int i = 0 ; i < rangeVariables . length ; i ++ ) { Expression e = rangeVariables [ i ] . nonIndexJoinCondition ; if ( e == null ) { continue ; } resolveColumnReferencesAndAllocate ( e , i + 1 , false ) ;... | Resolves all column expressions in the GROUP BY clause and beyond . Replaces any alias column expression in the ORDER BY cluase with the actual select column expression . | 236 | 33 |
155,469 | private int getMaxRowCount ( Session session , int rowCount ) { int limitStart = getLimitStart ( session ) ; int limitCount = getLimitCount ( session , rowCount ) ; if ( simpleLimit ) { if ( rowCount == 0 ) { rowCount = limitCount ; } // A VoltDB extension to support LIMIT 0 if ( rowCount > Integer . MAX_VALUE - limitS... | translate the rowCount into total number of rows needed from query including any rows skipped at the beginning | 309 | 20 |
155,470 | protected void dumpExprColumns ( String header ) { System . out . println ( "\n\n*********************************************" ) ; System . out . println ( header ) ; try { System . out . println ( getSQL ( ) ) ; } catch ( Exception e ) { } for ( int i = 0 ; i < exprColumns . length ; ++ i ) { if ( i == 0 ) System . o... | Dumps the exprColumns list for this query specification . Writes to stdout . | 201 | 18 |
155,471 | public void updateEECacheStats ( long eeCacheSize , long hits , long misses , int partitionId ) { m_cache1Level = eeCacheSize ; m_cache1Hits += hits ; m_cacheMisses += misses ; m_invocations += hits + misses ; m_partitionId = partitionId ; } | Used to update EE cache stats without changing tracked time | 72 | 10 |
155,472 | public void endStatsCollection ( long cache1Size , long cache2Size , CacheUse cacheUse , long partitionId ) { if ( m_currentStartTime != null ) { long delta = System . nanoTime ( ) - m_currentStartTime ; if ( delta < 0 ) { if ( Math . abs ( delta ) > 1000000000 ) { log . info ( "Planner statistics recorded a negative p... | Called after planning or failing to plan . Records timer and cache stats . | 302 | 15 |
155,473 | @ Override protected void updateStatsRow ( Object rowKey , Object rowValues [ ] ) { super . updateStatsRow ( rowKey , rowValues ) ; rowValues [ columnNameToIndex . get ( "PARTITION_ID" ) ] = m_partitionId ; long totalTimedExecutionTime = m_totalPlanningTime ; long minExecutionTime = m_minPlanningTime ; long maxExecutio... | Update the rowValues array with the latest statistical information . This method is overrides the super class version which must also be called so that it can update its columns . | 805 | 33 |
155,474 | static void tag ( StringBuilder sb , String color , String text ) { sb . append ( "<span class='label label" ) ; if ( color != null ) { sb . append ( "-" ) . append ( color ) ; } String classText = text . replace ( ' ' , ' ' ) ; sb . append ( " l-" ) . append ( classText ) . append ( "'>" ) . append ( text ) . append (... | Make an html bootstrap tag with our custom css class . | 103 | 13 |
155,475 | public static String report ( Catalog catalog , long minHeap , boolean isPro , int hostCount , int sitesPerHost , int kfactor , ArrayList < Feedback > warnings , String autoGenDDL ) throws IOException { // asynchronously get platform properties new Thread ( ) { @ Override public void run ( ) { PlatformProperties . getP... | Generate the HTML catalog report from a newly compiled VoltDB catalog | 709 | 13 |
155,476 | public static String liveReport ( ) { byte [ ] reportbytes = VoltDB . instance ( ) . getCatalogContext ( ) . getFileInJar ( VoltCompiler . CATLOG_REPORT ) ; String report = new String ( reportbytes , Charsets . UTF_8 ) ; // remove commented out code report = report . replace ( "<!--##RESOURCES" , "" ) ; report = report... | Find the pre - compild catalog report in the jarfile and modify it for use in the the built - in web portal . | 328 | 26 |
155,477 | private static boolean turnOffClientInterface ( ) { // we don't expect this to ever fail, but if it does, skip to dying immediately VoltDBInterface vdbInstance = instance ( ) ; if ( vdbInstance != null ) { ClientInterface ci = vdbInstance . getClientInterface ( ) ; if ( ci != null ) { if ( ! ci . ceaseAllPublicFacingTr... | turn off client interface as fast as possible | 101 | 8 |
155,478 | private static void sendCrashSNMPTrap ( String msg ) { if ( msg == null || msg . trim ( ) . isEmpty ( ) ) { return ; } VoltDBInterface vdbInstance = instance ( ) ; if ( vdbInstance == null ) { return ; } SnmpTrapSender snmp = vdbInstance . getSnmpTrapSender ( ) ; if ( snmp == null ) { return ; } try { snmp . crash ( ms... | send a SNMP trap crash notification | 146 | 7 |
155,479 | public static void crashGlobalVoltDB ( String errMsg , boolean stackTrace , Throwable t ) { // for test code wasCrashCalled = true ; crashMessage = errMsg ; if ( ignoreCrash ) { throw new AssertionError ( "Faux crash of VoltDB successful." ) ; } // end test code // send a snmp trap crash notification sendCrashSNMPTrap ... | Exit the process with an error message optionally with a stack trace . Also notify all connected peers that the node is going down . | 283 | 25 |
155,480 | public static void main ( String [ ] args ) { //Thread.setDefaultUncaughtExceptionHandler(new VoltUncaughtExceptionHandler()); Configuration config = new Configuration ( args ) ; try { if ( ! config . validate ( ) ) { System . exit ( - 1 ) ; } else { if ( config . m_startAction == StartAction . GET ) { cli ( config ) ;... | Entry point for the VoltDB server process . | 154 | 9 |
155,481 | public static String getDefaultReplicationInterface ( ) { if ( m_config . m_drInterface == null || m_config . m_drInterface . isEmpty ( ) ) { if ( m_config . m_externalInterface == null ) { return "" ; } else { return m_config . m_externalInterface ; } } else { return m_config . m_drInterface ; } } | Selects the a specified m_drInterface over a specified m_externalInterface from m_config | 85 | 20 |
155,482 | public void removeAllZeros ( ) { Iterator < Map . Entry < K , AtomicLong > > entryIterator = map . entrySet ( ) . iterator ( ) ; while ( entryIterator . hasNext ( ) ) { Map . Entry < K , AtomicLong > entry = entryIterator . next ( ) ; AtomicLong atomic = entry . getValue ( ) ; if ( atomic != null && atomic . get ( ) ==... | Removes all mappings from this map whose values are zero . | 102 | 13 |
155,483 | public CompletableFuture < ClientResponseWithPartitionKey [ ] > callAllPartitionProcedure ( String procedureName , Object ... params ) { return m_runner . callAllPartitionProcedure ( procedureName , params ) ; } | A version of the similar API from VoltDB clients but for for non - transactional procedures . Runs a single - partition procedure on every partition that exists at the time it is called . | 52 | 37 |
155,484 | public static ByteBuffer getTableDataReference ( VoltTable vt ) { ByteBuffer buf = vt . m_buffer . duplicate ( ) ; buf . rewind ( ) ; return buf ; } | End users should not call this method . Obtain a reference to the table s underlying buffer . The returned reference s position and mark are independent of the table s buffer position and mark . The returned buffer has no mark and is at position 0 . | 41 | 49 |
155,485 | private long reserveNextTicket ( double requiredPermits , long nowMicros ) { resync ( nowMicros ) ; long microsToNextFreeTicket = Math . max ( 0 , nextFreeTicketMicros - nowMicros ) ; double storedPermitsToSpend = Math . min ( requiredPermits , this . storedPermits ) ; double freshPermits = requiredPermits - storedPerm... | Reserves next ticket and returns the wait time that the caller must wait for . | 176 | 16 |
155,486 | public Options addOptionGroup ( OptionGroup group ) { if ( group . isRequired ( ) ) { requiredOpts . add ( group ) ; } for ( Option option : group . getOptions ( ) ) { // an Option cannot be required if it is in an // OptionGroup, either the group is required or // nothing is required option . setRequired ( false ) ; a... | Add the specified option group . | 104 | 6 |
155,487 | public Options addOption ( String opt , String description ) { addOption ( opt , null , false , description ) ; return this ; } | Add an option that only contains a short name . The option does not take an argument . | 28 | 18 |
155,488 | public Options addOption ( String opt , boolean hasArg , String description ) { addOption ( opt , null , hasArg , description ) ; return this ; } | Add an option that only contains a short - name . It may be specified as requiring an argument . | 33 | 20 |
155,489 | public Options addOption ( String opt , String longOpt , boolean hasArg , String description ) { addOption ( new Option ( opt , longOpt , hasArg , description ) ) ; return this ; } | Add an option that contains a short - name and a long - name . It may be specified as requiring an argument . | 42 | 24 |
155,490 | public static VoltXMLElement mergeTwoElementsUsingOperator ( String opName , String opElementId , VoltXMLElement first , VoltXMLElement second ) { if ( first == null || second == null ) { return first == null ? second : first ; } if ( opName == null || opElementId == null ) { return null ; } VoltXMLElement retval = new... | If one of the elements is null return the other one diectly . | 150 | 15 |
155,491 | public static List < VoltXMLElement > buildLimitElements ( int limit , String limitValueElementId ) { if ( limitValueElementId == null ) { return null ; } List < VoltXMLElement > retval = new ArrayList < VoltXMLElement > ( ) ; retval . add ( new VoltXMLElement ( "offset" ) ) ; VoltXMLElement limitElement = new VoltXMLE... | Build VoltXMLElement for expression like LIMIT 1 . | 165 | 12 |
155,492 | public static VoltXMLElement buildColumnParamJoincondElement ( String opName , VoltXMLElement leftElement , String valueParamElementId , String opElementId ) { VoltXMLElement valueParamElement = buildValueElement ( valueParamElementId ) ; return mergeTwoElementsUsingOperator ( opName , opElementId , leftElement , value... | Build VoltXMLElement for expression like column = ? . | 80 | 12 |
155,493 | public static VoltXMLElement buildParamElement ( String elementId , String index , String valueType ) { VoltXMLElement retval = new VoltXMLElement ( "parameter" ) ; retval . attributes . put ( "id" , elementId ) ; retval . attributes . put ( "index" , index ) ; retval . attributes . put ( "valuetype" , valueType ) ; re... | Build an element to be inserted under the parameters tree . | 93 | 11 |
155,494 | @ Override public void loadFromJSONObject ( JSONObject jobj , Database db ) throws JSONException { super . loadFromJSONObject ( jobj , db ) ; m_lookupType = IndexLookupType . get ( jobj . getString ( Members . LOOKUP_TYPE . name ( ) ) ) ; m_sortDirection = SortDirectionType . get ( jobj . getString ( Members . SORT_DIR... | all members loaded | 502 | 3 |
155,495 | public boolean isPredicatesOptimizableForAggregate ( ) { // for reverse scan, need to examine "added" predicates List < AbstractExpression > predicates = ExpressionUtil . uncombinePredicate ( m_predicate ) ; // if the size of predicates doesn't equal 1, can't be our added artifact predicates if ( predicates . size ( ) ... | added for reverse scan purpose only | 213 | 6 |
155,496 | private void respondWithDummy ( ) { final FragmentResponseMessage response = new FragmentResponseMessage ( m_fragmentMsg , m_initiator . getHSId ( ) ) ; response . m_sourceHSId = m_initiator . getHSId ( ) ; response . setRecovering ( true ) ; response . setStatus ( FragmentResponseMessage . SUCCESS , null ) ; // Set th... | Respond with a dummy fragment response . | 244 | 8 |
155,497 | public FragmentResponseMessage processFragmentTask ( SiteProcedureConnection siteConnection ) { final FragmentResponseMessage currentFragResponse = new FragmentResponseMessage ( m_fragmentMsg , m_initiator . getHSId ( ) ) ; currentFragResponse . setStatus ( FragmentResponseMessage . SUCCESS , null ) ; for ( int frag = ... | modified to work in the new world | 780 | 7 |
155,498 | @ Override public void run ( ) { try { VoltTable partitionKeys = null ; partitionKeys = m_client . callProcedure ( "@GetPartitionKeys" , "INTEGER" ) . getResults ( ) [ 0 ] ; while ( partitionKeys . advanceRow ( ) ) { m_client . callProcedure ( new NullCallback ( ) , "DeleteOldAdRequests" , partitionKeys . getLong ( "PA... | Remove aged - out data from the ad_requests table . This table is partitioned and may be large so use the run - everywhere pattern to minimize impact to throughput . | 158 | 35 |
155,499 | public void updateLobUsage ( boolean commit ) { if ( ! hasLobOps ) { return ; } hasLobOps = false ; if ( commit ) { for ( int i = 0 ; i < createdLobs . size ( ) ; i ++ ) { long lobID = createdLobs . get ( i ) ; int delta = lobUsageCount . get ( lobID , 0 ) ; if ( delta == 1 ) { lobUsageCount . remove ( lobID ) ; create... | update LobManager user counts delete lobs that have no usage | 330 | 12 |
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