idx int64 0 41.2k | question stringlengths 83 4.15k | target stringlengths 5 715 |
|---|---|---|
32,000 | public void start ( ) throws Exception { CountDownLatch zkInitBarrier = new CountDownLatch ( 1 ) ; if ( m_joiner . start ( zkInitBarrier ) ) { m_network . start ( ) ; long agreementHSId = getHSIdForLocalSite ( AGREEMENT_SITE_ID ) ; HashSet < Long > agreementSites = new HashSet < Long > ( ) ; agreementSites . add ( agre... | Start the host messenger and connect to the leader or become the leader if necessary . |
32,001 | public InstanceId getInstanceId ( ) { if ( m_instanceId == null ) { try { byte [ ] data = m_zk . getData ( CoreZK . instance_id , false , null ) ; JSONObject idJSON = new JSONObject ( new String ( data , "UTF-8" ) ) ; m_instanceId = new InstanceId ( idJSON . getInt ( "coord" ) , idJSON . getLong ( "timestamp" ) ) ; } c... | Get a unique ID for this cluster |
32,002 | public void requestJoin ( SocketChannel socket , SSLEngine sslEngine , MessagingChannel messagingChannel , InetSocketAddress listeningAddress , JSONObject jo ) throws Exception { Integer hostId = selectNewHostId ( socket . socket ( ) . getInetAddress ( ) . getHostAddress ( ) ) ; prepSocketChannel ( socket ) ; ForeignHo... | Any node can serve a request to join . The coordination of generating a new host id is done via ZK |
32,003 | public void notifyOfConnection ( int hostId , SocketChannel socket , SSLEngine sslEngine , InetSocketAddress listeningAddress ) throws Exception { networkLog . info ( "Host " + getHostId ( ) + " receives a new connection from host " + hostId ) ; prepSocketChannel ( socket ) ; ForeignHost fhost = new ForeignHost ( this ... | SocketJoiner receives the request of creating a new connection from given host id create a new ForeignHost for this connection . |
32,004 | public Map < Integer , HostInfo > waitForGroupJoin ( int expectedHosts ) { Map < Integer , HostInfo > hostInfos = Maps . newTreeMap ( ) ; try { while ( true ) { ZKUtil . FutureWatcher fw = new ZKUtil . FutureWatcher ( ) ; final List < String > children = m_zk . getChildren ( CoreZK . hosts , fw ) ; final int numChildre... | Wait until all the nodes have built a mesh . |
32,005 | public String getHostnameForHostID ( int hostId ) { if ( hostId == m_localHostId ) { return CoreUtils . getHostnameOrAddress ( ) ; } Iterator < ForeignHost > it = m_foreignHosts . get ( hostId ) . iterator ( ) ; if ( it . hasNext ( ) ) { ForeignHost fh = it . next ( ) ; return fh . hostname ( ) ; } return m_knownFailed... | Given a hostid return the hostname for it |
32,006 | public void removeMailbox ( long hsId ) { synchronized ( m_mapLock ) { ImmutableMap . Builder < Long , Mailbox > b = ImmutableMap . builder ( ) ; for ( Map . Entry < Long , Mailbox > e : m_siteMailboxes . entrySet ( ) ) { if ( e . getKey ( ) . equals ( hsId ) ) { continue ; } b . put ( e . getKey ( ) , e . getValue ( )... | Discard a mailbox |
32,007 | public void waitForAllHostsToBeReady ( int expectedHosts ) { try { m_zk . create ( CoreZK . readyhosts_host , null , Ids . OPEN_ACL_UNSAFE , CreateMode . EPHEMERAL_SEQUENTIAL ) ; while ( true ) { ZKUtil . FutureWatcher fw = new ZKUtil . FutureWatcher ( ) ; int readyHosts = m_zk . getChildren ( CoreZK . readyhosts , fw ... | Block on this call until the number of ready hosts is equal to the number of expected hosts . |
32,008 | public void waitForJoiningHostsToBeReady ( int expectedHosts , int localHostId ) { try { m_zk . create ( ZKUtil . joinZKPath ( CoreZK . readyjoininghosts , Integer . toString ( localHostId ) ) , null , Ids . OPEN_ACL_UNSAFE , CreateMode . PERSISTENT ) ; while ( true ) { ZKUtil . FutureWatcher fw = new ZKUtil . FutureWa... | For elastic join . Block on this call until the number of ready hosts is equal to the number of expected joining hosts . |
32,009 | public int countForeignHosts ( ) { int retval = 0 ; for ( ForeignHost host : m_foreignHosts . values ( ) ) { if ( ( host != null ) && ( host . isUp ( ) ) ) { retval ++ ; } } return retval ; } | Get the number of up foreign hosts . Used for test purposes . |
32,010 | public void closeForeignHostSocket ( int hostId ) { Iterator < ForeignHost > it = m_foreignHosts . get ( hostId ) . iterator ( ) ; while ( it . hasNext ( ) ) { ForeignHost fh = it . next ( ) ; if ( fh . isUp ( ) ) { fh . killSocket ( ) ; } } reportForeignHostFailed ( hostId ) ; } | Kill a foreign host socket by id . |
32,011 | public void cutLink ( int hostIdA , int hostIdB ) { if ( m_localHostId == hostIdA ) { Iterator < ForeignHost > it = m_foreignHosts . get ( hostIdB ) . iterator ( ) ; while ( it . hasNext ( ) ) { ForeignHost fh = it . next ( ) ; fh . cutLink ( ) ; } } if ( m_localHostId == hostIdB ) { Iterator < ForeignHost > it = m_for... | Cut the network connection between two hostids immediately Useful for simulating network partitions |
32,012 | void execute ( ) { String sCmd = null ; if ( 4096 <= ifHuge . length ( ) ) { sCmd = ifHuge ; } else { sCmd = txtCommand . getText ( ) ; } if ( sCmd . startsWith ( " ) ) { testPerformance ( ) ; return ; } String [ ] g = new String [ 1 ] ; lTime = System . currentTimeMillis ( ) ; try { if ( sStatement == null ) { return ... | Adjust this method for large strings ... ie multi megabtypes . |
32,013 | 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 . |
32,014 | 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? |
32,015 | 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 . |
32,016 | 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 . |
32,017 | 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... |
32,018 | 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 . |
32,019 | 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 . |
32,020 | 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 |
32,021 | 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 |
32,022 | void closeResultData ( ) throws SQLException { if ( currentResultSet != null ) { currentResultSet . close ( ) ; } if ( generatedResultSet != null ) { generatedResultSet . close ( ) ; } generatedResultSet = null ; generatedResult = null ; resultIn = null ; } | See comment for getMoreResults . |
32,023 | public boolean compatibleWithTable ( VoltTable table ) { String candidateName = getTableName ( table ) ; if ( candidateName . equals ( viewName ) ) { return false ; } if ( candidateName . equals ( srcTableName ) == false ) { return false ; } try { int groupColIndex = table . getColumnIndex ( groupColName ) ; VoltType g... | Check if the view could apply to the provided table unchanged . |
32,024 | public static ThreadFactory platformThreadFactory ( ) { if ( ! isAppEngine ( ) ) { return Executors . defaultThreadFactory ( ) ; } try { return ( ThreadFactory ) Class . forName ( "com.google_voltpatches.appengine.api.ThreadManager" ) . getMethod ( "currentRequestThreadFactory" ) . invoke ( null ) ; } catch ( IllegalAc... | Returns a default thread factory used to create new threads . |
32,025 | 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 . |
32,026 | 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 . |
32,027 | 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 |
32,028 | 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 |
32,029 | public void reestablishTotalCount ( ) { 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 . |
32,030 | 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 |
32,031 | public void considerCandidatePlan ( CompiledPlan plan , AbstractParsedStmt parsedStmt ) { ScanDeterminizer . apply ( plan , m_detMode ) ; plan . sql = m_sql ; m_stats = new PlanStatistics ( ) ; AbstractPlanNode planGraph = plan . rootPlanGraph ; planGraph . computeEstimatesRecursively ( m_stats , m_estimates , m_paramH... | Picks the best cost plan for a given raw plan |
32,032 | public static PartitionDRGateway getInstance ( int partitionId , ProducerDRGateway producerGateway , StartAction startAction ) { PartitionDRGateway pdrg = null ; if ( producerGateway != null ) { pdrg = tryToLoadProVersion ( ) ; } if ( pdrg == null ) { pdrg = new PartitionDRGateway ( ) ; } try { pdrg . init ( partitionI... | Load the full subclass if it should otherwise load the noop stub . |
32,033 | 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 . |
32,034 | public void callProcedure ( AuthUser user , boolean isAdmin , int timeout , ProcedureCallback cb , String procName , Object [ ] args ) { assert ( cb != null ) ; StoredProcedureInvocation task = new StoredProcedureInvocation ( ) ; task . setProcName ( procName ) ; task . setParams ( args ) ; if ( timeout != BatchTimeout... | Used to call a procedure from NTPRocedureRunner Calls createTransaction with the proper params |
32,035 | 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 |
32,036 | 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 . |
32,037 | public static < T > Iterable < T > cycle ( T ... elements ) { return cycle ( Lists . newArrayList ( elements ) ) ; } | Returns an iterable whose iterators cycle indefinitely over the provided elements . |
32,038 | 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 ) ; } | Provide a serialized catalog and initialize version 0 of the engine s catalog . |
32,039 | 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 ) ) ; checkErrorCode ( ... | Provide a catalog diff and a new catalog version and update the engine s catalog . |
32,040 | public int extractPerFragmentStats ( int batchSize , long [ ] executionTimesOut ) { m_perFragmentStatsBuffer . clear ( ) ; m_perFragmentStatsBuffer . get ( ) ; int succeededFragmentsCount = m_perFragmentStatsBuffer . getInt ( ) ; if ( executionTimesOut != null ) { assert ( executionTimesOut . length >= succeededFragmen... | Extract the per - fragment stats from the buffer . |
32,041 | public VoltTable [ ] getStats ( final StatsSelector selector , final int locators [ ] , final boolean interval , final Long now ) { m_nextDeserializer . clear ( ) ; final int numResults = nativeGetStats ( pointer , selector . ordinal ( ) , locators , interval , now ) ; if ( numResults == - 1 ) { throwExceptionForError ... | Retrieve a set of statistics using the specified selector from the StatisticsSelector enum . |
32,042 | 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 . |
32,043 | 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 . |
32,044 | 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 . |
32,045 | 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 . |
32,046 | 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 |
32,047 | public ByteBuffer flattenPlanArrayToBuffer ( ) throws IOException { int size = 0 ; ParameterSet userParamCache = null ; if ( userParamSet == null ) { userParamCache = ParameterSet . emptyParameterSet ( ) ; } else { Object [ ] typedUserParams = new Object [ userParamSet . length ] ; int ii = 0 ; for ( AdHocPlannedStatem... | 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 . |
32,048 | 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 |
32,049 | 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 . |
32,050 | 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 . |
32,051 | 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 . |
32,052 | public void startPeriodicStatsPrinting ( ) { if ( m_statsTimer == null ) { m_statsTimer = new Timer ( ) ; m_statsTimer . scheduleAtFixedRate ( new TimerTask ( ) { 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 . |
32,053 | 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 . |
32,054 | 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 . |
32,055 | 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 . |
32,056 | 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 . |
32,057 | 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 . |
32,058 | 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 . |
32,059 | 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 . |
32,060 | 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 . |
32,061 | public void setNString ( String parameterName , String value ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Sets the designated parameter to the given String object . |
32,062 | public void setURL ( String parameterName , URL val ) throws SQLException { checkClosed ( ) ; throw SQLError . noSupport ( ) ; } | Sets the designated parameter to the given java . net . URL object . |
32,063 | 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 . |
32,064 | 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 . |
32,065 | 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 . |
32,066 | 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 |
32,067 | 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 |
32,068 | 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 |
32,069 | 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 . |
32,070 | 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 . |
32,071 | private boolean checkMisroutedIv2IntiateTaskMessage ( Iv2InitiateTaskMessage message ) { if ( message . isForReplica ( ) ) { return false ; } if ( m_scheduler . isLeader ( ) && m_migratePartitionLeaderStatus != MigratePartitionLeaderStatus . TXN_RESTART ) { return false ; } InitiateResponseMessage response = new Initia... | if these requests are intended for leader . Client interface will restart these transactions . |
32,072 | private boolean checkMisroutedFragmentTaskMessage ( FragmentTaskMessage message ) { if ( m_scheduler . isLeader ( ) || message . isForReplica ( ) ) { return false ; } TransactionState txnState = ( ( ( SpScheduler ) m_scheduler ) . getTransactionState ( message . getTxnId ( ) ) ) ; if ( txnState == null ) { FragmentResp... | After MigratePartitionLeader has been requested the fragments which are sent to leader site should be restarted . |
32,073 | private void handleLogRequest ( VoltMessage message ) { Iv2RepairLogRequestMessage req = ( Iv2RepairLogRequestMessage ) message ; int deadHostId = req . getDeadHostId ( ) ; if ( deadHostId != Integer . MAX_VALUE ) { if ( m_messenger . canCompleteRepair ( deadHostId ) ) { req . disableDeadHostCheck ( ) ; deliver ( messa... | Produce the repair log . This is idempotent . |
32,074 | private void setMigratePartitionLeaderStatus ( MigratePartitionLeaderMessage message ) { if ( message . isStatusReset ( ) ) { m_migratePartitionLeaderStatus = MigratePartitionLeaderStatus . NONE ; return ; } if ( m_migratePartitionLeaderStatus == MigratePartitionLeaderStatus . NONE ) { m_migratePartitionLeaderStatus = ... | that previous partition leader has drained its txns |
32,075 | public void setMigratePartitionLeaderStatus ( boolean migratePartitionLeader ) { if ( ! migratePartitionLeader ) { m_migratePartitionLeaderStatus = MigratePartitionLeaderStatus . NONE ; m_newLeaderHSID = Long . MIN_VALUE ; return ; } if ( m_migratePartitionLeaderStatus == MigratePartitionLeaderStatus . TXN_DRAINED ) { ... | the site for new partition leader |
32,076 | public void notifyNewLeaderOfTxnDoneIfNeeded ( ) { if ( m_newLeaderHSID == Long . MIN_VALUE ) { return ; } SpScheduler scheduler = ( SpScheduler ) m_scheduler ; if ( ! scheduler . txnDoneBeforeCheckPoint ( ) ) { return ; } MigratePartitionLeaderMessage message = new MigratePartitionLeaderMessage ( m_hsId , m_newLeaderH... | Then new master can proceed to process transactions . |
32,077 | 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 . |
32,078 | 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 |
32,079 | public String [ ] getArgs ( ) { String [ ] answer = new String [ args . size ( ) ] ; args . toArray ( answer ) ; return answer ; } | Retrieve any left - over non - recognized options and arguments |
32,080 | public boolean processScanNodeWithReAggNode ( AbstractPlanNode node , AbstractPlanNode reAggNode ) { for ( int i = 0 ; i < node . getChildCount ( ) ; i ++ ) { AbstractPlanNode child = node . getChild ( i ) ; if ( child instanceof AbstractScanPlanNode ) { AbstractScanPlanNode scanNode = ( AbstractScanPlanNode ) child ; ... | 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 . |
32,081 | 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 . |
32,082 | private int getMaxRowCount ( Session session , int rowCount ) { int limitStart = getLimitStart ( session ) ; int limitCount = getLimitCount ( session , rowCount ) ; if ( simpleLimit ) { if ( rowCount == 0 ) { rowCount = limitCount ; } if ( rowCount > Integer . MAX_VALUE - limitStart ) { rowCount = Integer . MAX_VALUE ;... | translate the rowCount into total number of rows needed from query including any rows skipped at the beginning |
32,083 | 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 . |
32,084 | 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 |
32,085 | 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 . |
32,086 | 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 maxExecutionTime = m_m... | 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 . |
32,087 | 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 . |
32,088 | public static String report ( Catalog catalog , long minHeap , boolean isPro , int hostCount , int sitesPerHost , int kfactor , ArrayList < Feedback > warnings , String autoGenDDL ) throws IOException { new Thread ( ) { public void run ( ) { PlatformProperties . getPlatformProperties ( ) ; } } . start ( ) ; URL url = R... | Generate the HTML catalog report from a newly compiled VoltDB catalog |
32,089 | public static String liveReport ( ) { byte [ ] reportbytes = VoltDB . instance ( ) . getCatalogContext ( ) . getFileInJar ( VoltCompiler . CATLOG_REPORT ) ; String report = new String ( reportbytes , Charsets . UTF_8 ) ; report = report . replace ( "<!--##RESOURCES" , "" ) ; report = report . replace ( "##RESOURCES , "... | Find the pre - compild catalog report in the jarfile and modify it for use in the the built - in web portal . |
32,090 | private static boolean turnOffClientInterface ( ) { VoltDBInterface vdbInstance = instance ( ) ; if ( vdbInstance != null ) { ClientInterface ci = vdbInstance . getClientInterface ( ) ; if ( ci != null ) { if ( ! ci . ceaseAllPublicFacingTrafficImmediately ( ) ) { return false ; } } } return true ; } | turn off client interface as fast as possible |
32,091 | 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 |
32,092 | public static void crashGlobalVoltDB ( String errMsg , boolean stackTrace , Throwable t ) { wasCrashCalled = true ; crashMessage = errMsg ; if ( ignoreCrash ) { throw new AssertionError ( "Faux crash of VoltDB successful." ) ; } sendCrashSNMPTrap ( errMsg ) ; try { if ( ! turnOffClientInterface ( ) ) { return ; } insta... | Exit the process with an error message optionally with a stack trace . Also notify all connected peers that the node is going down . |
32,093 | public static void main ( String [ ] args ) { Configuration config = new Configuration ( args ) ; try { if ( ! config . validate ( ) ) { System . exit ( - 1 ) ; } else { if ( config . m_startAction == StartAction . GET ) { cli ( config ) ; } else { initialize ( config ) ; instance ( ) . run ( ) ; } } } catch ( OutOfMem... | Entry point for the VoltDB server process . |
32,094 | 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 |
32,095 | 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 . |
32,096 | 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 . |
32,097 | 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 . |
32,098 | 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 . |
32,099 | public Options addOptionGroup ( OptionGroup group ) { if ( group . isRequired ( ) ) { requiredOpts . add ( group ) ; } for ( Option option : group . getOptions ( ) ) { option . setRequired ( false ) ; addOption ( option ) ; optionGroups . put ( option . getKey ( ) , group ) ; } return this ; } | Add the specified option group . |
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