idx int64 0 165k | question stringlengths 73 5.81k | target stringlengths 5 918 |
|---|---|---|
154,500 | private void processScript ( ) { ScriptReaderBase scr = null ; try { if ( database . isFilesInJar ( ) || fa . isStreamElement ( scriptFileName ) ) { scr = ScriptReaderBase . newScriptReader ( database , scriptFileName , scriptFormat ) ; Session session = database . sessionManager . getSysSessionForScript ( database ) ;... | Performs all the commands in the . script file . |
154,501 | private void processDataFile ( ) { if ( database . isStoredFileAccess ( ) ) { return ; } if ( cache == null || filesReadOnly || ! fa . isStreamElement ( logFileName ) ) { return ; } File file = new File ( logFileName ) ; long logLength = file . length ( ) ; long dataLength = cache . getFileFreePos ( ) ; if ( logLength ... | Defrag large data files when the sum of . log and . data files is large . |
154,502 | private void processLog ( ) { if ( ! database . isFilesInJar ( ) && fa . isStreamElement ( logFileName ) ) { ScriptRunner . runScript ( database , logFileName , ScriptWriterBase . SCRIPT_TEXT_170 ) ; } } | Performs all the commands in the . log file . |
154,503 | private void restoreBackup ( ) { if ( incBackup ) { restoreBackupIncremental ( ) ; return ; } DataFileCache . deleteOrResetFreePos ( database , fileName + ".data" ) ; try { FileArchiver . unarchive ( fileName + ".backup" , fileName + ".data" , database . getFileAccess ( ) , FileArchiver . COMPRESSION_ZIP ) ; } catch ( ... | Restores a compressed backup or the . data file . |
154,504 | private void restoreBackupIncremental ( ) { try { if ( fa . isStreamElement ( fileName + ".backup" ) ) { RAShadowFile . restoreFile ( fileName + ".backup" , fileName + ".data" ) ; } else { } deleteBackup ( ) ; } catch ( IOException e ) { throw Error . error ( ErrorCode . FILE_IO_ERROR , fileName + ".backup" ) ; } } | Restores in from an incremental backup |
154,505 | public void updateCatalog ( String diffCmds , CatalogContext context , boolean isReplay , boolean requireCatalogDiffCmdsApplyToEE , boolean requiresNewExportGeneration ) { m_executionSite . updateCatalog ( diffCmds , context , false , true , Long . MIN_VALUE , Long . MIN_VALUE , Long . MIN_VALUE , isReplay , requireCat... | Update the MPI s Site s catalog . Unlike the SPI this is not going to run from the same Site s thread ; this is actually going to run from some other local SPI s Site thread . Since the MPI s site thread is going to be blocked running the EveryPartitionTask for the catalog update this is currently safe with no locking ... |
154,506 | public static Pair < AbstractTopology , ImmutableList < Integer > > mutateAddNewHosts ( AbstractTopology currentTopology , Map < Integer , HostInfo > newHostInfos ) { int startingPartitionId = getNextFreePartitionId ( currentTopology ) ; TopologyBuilder topologyBuilder = addPartitionsToHosts ( newHostInfos , Collection... | Add new hosts to an existing topology and layout partitions on those hosts |
154,507 | public static Pair < AbstractTopology , Set < Integer > > mutateRemoveHosts ( AbstractTopology currentTopology , Set < Integer > removalHosts ) { Set < Integer > removalPartitionIds = getPartitionIdsForHosts ( currentTopology , removalHosts ) ; return Pair . of ( new AbstractTopology ( currentTopology , removalHosts , ... | Remove hosts from an existing topology |
154,508 | public Set < Integer > getPartitionGroupPeers ( int hostId ) { Set < Integer > peers = Sets . newHashSet ( ) ; for ( Partition p : hostsById . get ( hostId ) . partitions ) { peers . addAll ( p . hostIds ) ; } return peers ; } | get all the hostIds in the partition group where the host with the given host id belongs |
154,509 | public static List < Collection < Integer > > sortHostIdByHGDistance ( int hostId , Map < Integer , String > hostGroups ) { String localHostGroup = hostGroups . get ( hostId ) ; Preconditions . checkArgument ( localHostGroup != null ) ; HAGroup localHaGroup = new HAGroup ( localHostGroup ) ; Multimap < Integer , Intege... | Sort all nodes in reverse hostGroup distance order then group by rack - aware group local host id is excluded . |
154,510 | public void reportQueued ( String importerName , String procName ) { StatsInfo statsInfo = getStatsInfo ( importerName , procName ) ; statsInfo . m_pendingCount . incrementAndGet ( ) ; } | An insert request was queued |
154,511 | public void reportFailure ( String importerName , String procName , boolean decrementPending ) { StatsInfo statsInfo = getStatsInfo ( importerName , procName ) ; if ( decrementPending ) { statsInfo . m_pendingCount . decrementAndGet ( ) ; } statsInfo . m_failureCount . incrementAndGet ( ) ; } | Use this when the insert fails even before the request is queued by the InternalConnectionHandler |
154,512 | private void reportSuccess ( String importerName , String procName ) { StatsInfo statsInfo = getStatsInfo ( importerName , procName ) ; statsInfo . m_pendingCount . decrementAndGet ( ) ; statsInfo . m_successCount . incrementAndGet ( ) ; } | One insert succeeded |
154,513 | private void reportRetry ( String importerName , String procName ) { StatsInfo statsInfo = getStatsInfo ( importerName , procName ) ; statsInfo . m_retryCount . incrementAndGet ( ) ; } | One insert was retried |
154,514 | public void writeBlock ( byte [ ] block ) throws IOException { if ( block . length != 512 ) { throw new IllegalArgumentException ( RB . singleton . getString ( RB . BAD_BLOCK_WRITE_LEN , block . length ) ) ; } write ( block , block . length ) ; } | Write a user - specified 512 - byte block . |
154,515 | public void writePadBlocks ( int blockCount ) throws IOException { for ( int i = 0 ; i < blockCount ; i ++ ) { write ( ZERO_BLOCK , ZERO_BLOCK . length ) ; } } | Writes the specified quantity of zero d blocks . |
154,516 | private Vector getAllTables ( ) { Vector result = new Vector ( 20 ) ; try { if ( cConn == null ) { return null ; } dbmeta = cConn . getMetaData ( ) ; String [ ] tableTypes = { "TABLE" } ; ResultSet allTables = dbmeta . getTables ( null , null , null , tableTypes ) ; while ( allTables . next ( ) ) { String aktTable = al... | exclude tables without primary key |
154,517 | private int getChoosenTableIndex ( ) { String tableName = cTables . getSelectedItem ( ) ; int index = getTableIndex ( tableName ) ; if ( index >= 0 ) { return index ; } ZaurusTableForm tableForm = new ZaurusTableForm ( tableName , cConn ) ; pForm . add ( tableName , tableForm ) ; vHoldTableNames . addElement ( tableNam... | if the table name is not in vHoldTableNames create a ZaurusTableForm for it |
154,518 | private int getTableIndex ( String tableName ) { int index ; for ( index = 0 ; index < vHoldTableNames . size ( ) ; index ++ ) { if ( tableName . equals ( ( String ) vHoldTableNames . elementAt ( index ) ) ) { return index ; } } return - 1 ; } | if the name is not in vHoldTableNames answer - 1 |
154,519 | private String [ ] getWords ( ) { StringTokenizer tokenizer = new StringTokenizer ( fSearchWords . getText ( ) ) ; String [ ] result = new String [ tokenizer . countTokens ( ) ] ; int i = 0 ; while ( tokenizer . hasMoreTokens ( ) ) { result [ i ++ ] = tokenizer . nextToken ( ) ; } return result ; } | convert the search words in the textfield to an array of words |
154,520 | private void initButtons ( ) { bSearchRow = new Button ( "Search Rows" ) ; bNewRow = new Button ( "Insert New Row" ) ; bSearchRow . addActionListener ( this ) ; bNewRow . addActionListener ( this ) ; pSearchButs = new Panel ( ) ; pSearchButs . setLayout ( new GridLayout ( 1 , 0 , 4 , 4 ) ) ; pSearchButs . add ( bSearch... | init the three boxes for buttons |
154,521 | private void resetTableForms ( ) { lForm . show ( pForm , "search" ) ; lButton . show ( pButton , "search" ) ; Vector vAllTables = getAllTables ( ) ; cTables . removeAll ( ) ; for ( Enumeration e = vAllTables . elements ( ) ; e . hasMoreElements ( ) ; ) { cTables . addItem ( ( String ) e . nextElement ( ) ) ; } for ( E... | reset everything after changes in the database |
154,522 | private ParsedSelectStmt getLeftmostSelectStmt ( ) { assert ( ! m_children . isEmpty ( ) ) ; AbstractParsedStmt firstChild = m_children . get ( 0 ) ; if ( firstChild instanceof ParsedSelectStmt ) { return ( ParsedSelectStmt ) firstChild ; } else { assert ( firstChild instanceof ParsedUnionStmt ) ; return ( ( ParsedUnio... | Return the leftmost child SELECT statement |
154,523 | public String calculateContentDeterminismMessage ( ) { String ans = null ; for ( AbstractParsedStmt child : m_children ) { ans = child . getContentDeterminismMessage ( ) ; if ( ans != null ) { return ans ; } } return null ; } | Here we search all the children finding if each is content deterministic . If it is we return right away . |
154,524 | public synchronized void rollLog ( ) throws IOException { if ( logStream != null ) { this . logStream . flush ( ) ; this . logStream = null ; oa = null ; } } | rollover the current log file to a new one . |
154,525 | public synchronized void close ( ) throws IOException { if ( logStream != null ) { logStream . close ( ) ; } for ( FileOutputStream log : streamsToFlush ) { log . close ( ) ; } } | close all the open file handles |
154,526 | public synchronized boolean append ( TxnHeader hdr , Record txn ) throws IOException { if ( hdr != null ) { if ( hdr . getZxid ( ) <= lastZxidSeen ) { LOG . warn ( "Current zxid " + hdr . getZxid ( ) + " is <= " + lastZxidSeen + " for " + hdr . getType ( ) ) ; } if ( logStream == null ) { if ( LOG . isInfoEnabled ( ) )... | append an entry to the transaction log |
154,527 | private void padFile ( FileOutputStream out ) throws IOException { currentSize = Util . padLogFile ( out , currentSize , preAllocSize ) ; } | pad the current file to increase its size |
154,528 | public static File [ ] getLogFiles ( File [ ] logDirList , long snapshotZxid ) { List < File > files = Util . sortDataDir ( logDirList , "log" , true ) ; long logZxid = 0 ; for ( File f : files ) { long fzxid = Util . getZxidFromName ( f . getName ( ) , "log" ) ; if ( fzxid > snapshotZxid ) { continue ; } if ( fzxid > ... | Find the log file that starts at or just before the snapshot . Return this and all subsequent logs . Results are ordered by zxid of file ascending order . |
154,529 | public long getLastLoggedZxid ( ) { File [ ] files = getLogFiles ( logDir . listFiles ( ) , 0 ) ; long maxLog = files . length > 0 ? Util . getZxidFromName ( files [ files . length - 1 ] . getName ( ) , "log" ) : - 1 ; long zxid = maxLog ; try { FileTxnLog txn = new FileTxnLog ( logDir ) ; TxnIterator itr = txn . read ... | get the last zxid that was logged in the transaction logs |
154,530 | public synchronized void commit ( ) throws IOException { if ( logStream != null ) { logStream . flush ( ) ; } for ( FileOutputStream log : streamsToFlush ) { log . flush ( ) ; if ( forceSync ) { log . getChannel ( ) . force ( false ) ; } } while ( streamsToFlush . size ( ) > 1 ) { streamsToFlush . removeFirst ( ) . clo... | commit the logs . make sure that evertyhing hits the disk |
154,531 | public boolean truncate ( long zxid ) throws IOException { FileTxnIterator itr = new FileTxnIterator ( this . logDir , zxid ) ; PositionInputStream input = itr . inputStream ; long pos = input . getPosition ( ) ; RandomAccessFile raf = new RandomAccessFile ( itr . logFile , "rw" ) ; raf . setLength ( pos ) ; raf . clos... | truncate the current transaction logs |
154,532 | private static FileHeader readHeader ( File file ) throws IOException { InputStream is = null ; try { is = new BufferedInputStream ( new FileInputStream ( file ) ) ; InputArchive ia = BinaryInputArchive . getArchive ( is ) ; FileHeader hdr = new FileHeader ( ) ; hdr . deserialize ( ia , "fileheader" ) ; return hdr ; } ... | read the header of the transaction file |
154,533 | public long getDbId ( ) throws IOException { FileTxnIterator itr = new FileTxnIterator ( logDir , 0 ) ; FileHeader fh = readHeader ( itr . logFile ) ; itr . close ( ) ; if ( fh == null ) throw new IOException ( "Unsupported Format." ) ; return fh . getDbid ( ) ; } | the dbid of this transaction database |
154,534 | public static void verifyForHdfsUse ( String sb ) throws IllegalArgumentException { Preconditions . checkArgument ( sb != null && ! sb . trim ( ) . isEmpty ( ) , "null or empty hdfs endpoint" ) ; int mask = conversionMaskFor ( sb ) ; boolean hasDateConversion = ( mask & DATE ) == DATE ; Preconditions . checkArgument ( ... | Verifies that given endpoint format string specifies all the required hdfs conversions in the path portion of the endpoint . |
154,535 | public static void verifyForBatchUse ( String sb ) throws IllegalArgumentException { Preconditions . checkArgument ( sb != null && ! sb . trim ( ) . isEmpty ( ) , "null or empty hdfs endpoint" ) ; int mask = conversionMaskFor ( sb ) ; Preconditions . checkArgument ( ( mask & HDFS_MASK ) == HDFS_MASK , "batch mode endpo... | Verifies that given endpoint format string specifies all the required batch mode conversions . |
154,536 | protected void handleJSONMessage ( JSONObject obj ) throws Exception { hostLog . warn ( "SystemCatalogAgent received a JSON message, which should be impossible." ) ; VoltTable [ ] results = null ; sendOpsResponse ( results , obj ) ; } | SystemCatalog shouldn t currently get here make it so we don t die or do anything |
154,537 | public static < K , V > Map < K , V > constrainedMap ( Map < K , V > map , MapConstraint < ? super K , ? super V > constraint ) { return new ConstrainedMap < K , V > ( map , constraint ) ; } | Returns a constrained view of the specified map using the specified constraint . Any operations that add new mappings will call the provided constraint . However this method does not verify that existing mappings satisfy the constraint . |
154,538 | public static < K , V > ListMultimap < K , V > constrainedListMultimap ( ListMultimap < K , V > multimap , MapConstraint < ? super K , ? super V > constraint ) { return new ConstrainedListMultimap < K , V > ( multimap , constraint ) ; } | Returns a constrained view of the specified list multimap using the specified constraint . Any operations that add new mappings will call the provided constraint . However this method does not verify that existing mappings satisfy the constraint . |
154,539 | private void validateWindowedSyntax ( ) { switch ( opType ) { case OpTypes . WINDOWED_RANK : case OpTypes . WINDOWED_DENSE_RANK : case OpTypes . WINDOWED_ROW_NUMBER : if ( nodes . length != 0 ) { throw Error . error ( "Windowed Aggregate " + OpTypes . aggregateName ( opType ) + " expects no arguments." , "" , 0 ) ; } b... | Validate that this is a collection of values . |
154,540 | Result getResult ( Session session ) { Table table = baseTable ; Result resultOut = null ; RowSetNavigator generatedNavigator = null ; PersistentStore store = session . sessionData . getRowStore ( baseTable ) ; if ( generatedIndexes != null ) { resultOut = Result . newUpdateCountResult ( generatedResultMetaData , 0 ) ;... | Executes an INSERT_SELECT statement . It is assumed that the argument is of the correct type . |
154,541 | public void resolveForTable ( Table table ) { assert ( table != null ) ; Column column = table . getColumns ( ) . getExact ( m_columnName ) ; assert ( column != null ) ; m_tableName = table . getTypeName ( ) ; m_columnIndex = column . getIndex ( ) ; setTypeSizeAndInBytes ( column ) ; } | Resolve a TVE in the context of the given table . Since this is a TVE it is a leaf node in the expression tree . We just look up the metadata from the table and copy it here to this object . |
154,542 | public int setColumnIndexUsingSchema ( NodeSchema inputSchema ) { int index = inputSchema . getIndexOfTve ( this ) ; if ( index < 0 ) { return index ; } setColumnIndex ( index ) ; if ( getValueType ( ) == null ) { SchemaColumn inputColumn = inputSchema . getColumn ( index ) ; setTypeSizeAndInBytes ( inputColumn ) ; } r... | Given an input schema resolve this TVE expression . |
154,543 | public String getColumnClassName ( int column ) throws SQLException { sourceResultSet . checkColumnBounds ( column ) ; VoltType type = sourceResultSet . table . getColumnType ( column - 1 ) ; String result = type . getJdbcClass ( ) ; if ( result == null ) { throw SQLError . get ( SQLError . TRANSLATION_NOT_FOUND , type... | Returns the fully - qualified name of the Java class whose instances are manufactured if the method ResultSet . getObject is called to retrieve a value from the column . |
154,544 | public int getPrecision ( int column ) throws SQLException { sourceResultSet . checkColumnBounds ( column ) ; VoltType type = sourceResultSet . table . getColumnType ( column - 1 ) ; Integer result = type . getTypePrecisionAndRadix ( ) [ 0 ] ; if ( result == null ) { result = 0 ; } return result ; } | Get the designated column s specified column size . |
154,545 | public int getScale ( int column ) throws SQLException { sourceResultSet . checkColumnBounds ( column ) ; VoltType type = sourceResultSet . table . getColumnType ( column - 1 ) ; Integer result = type . getMaximumScale ( ) ; if ( result == null ) { result = 0 ; } return result ; } | Gets the designated column s number of digits to right of the decimal point . |
154,546 | public boolean isCaseSensitive ( int column ) throws SQLException { sourceResultSet . checkColumnBounds ( column ) ; VoltType type = sourceResultSet . table . getColumnType ( column - 1 ) ; return type . isCaseSensitive ( ) ; } | Indicates whether a column s case matters . |
154,547 | public boolean isSigned ( int column ) throws SQLException { sourceResultSet . checkColumnBounds ( column ) ; VoltType type = sourceResultSet . table . getColumnType ( column - 1 ) ; Boolean result = type . isUnsigned ( ) ; if ( result == null ) { return false ; } return ! result ; } | Indicates whether values in the designated column are signed numbers . |
154,548 | private AbstractPlanNode applyOptimization ( WindowFunctionPlanNode plan ) { assert ( plan . getChildCount ( ) == 1 ) ; assert ( plan . getChild ( 0 ) != null ) ; AbstractPlanNode child = plan . getChild ( 0 ) ; assert ( child != null ) ; if ( ! ( child instanceof OrderByPlanNode ) ) { return plan ; } OrderByPlanNode o... | Convert ReceivePlanNodes into MergeReceivePlanNodes when the RECEIVE node s nearest parent is a window function . We won t have any inline limits or aggregates here so this is somewhat simpler than the order by case . |
154,549 | AbstractPlanNode convertToSerialAggregation ( AbstractPlanNode aggregateNode , OrderByPlanNode orderbyNode ) { assert ( aggregateNode instanceof HashAggregatePlanNode ) ; HashAggregatePlanNode hashAggr = ( HashAggregatePlanNode ) aggregateNode ; List < AbstractExpression > groupbys = new ArrayList < > ( hashAggr . getG... | The Hash aggregate can be converted to a Serial or Partial aggregate if - all GROUP BY and ORDER BY expressions bind to each other - Serial Aggregate - a subset of the GROUP BY expressions covers all of the ORDER BY - Partial - anything else - remains a Hash Aggregate |
154,550 | private final void startHeartbeat ( ) { if ( timerTask == null || HsqlTimer . isCancelled ( timerTask ) ) { Runnable runner = new HeartbeatRunner ( ) ; timerTask = timer . schedulePeriodicallyAfter ( 0 , HEARTBEAT_INTERVAL , runner , true ) ; } } | Schedules the lock heartbeat task . |
154,551 | private final void stopHeartbeat ( ) { if ( timerTask != null && ! HsqlTimer . isCancelled ( timerTask ) ) { HsqlTimer . cancel ( timerTask ) ; timerTask = null ; } } | Cancels the lock heartbeat task . |
154,552 | public final static boolean isLocked ( final String path ) { boolean locked = true ; try { LockFile lockFile = LockFile . newLockFile ( path ) ; lockFile . checkHeartbeat ( false ) ; locked = false ; } catch ( Exception e ) { } return locked ; } | Retrieves whether there is potentially already a cooperative lock operating system lock or some other situation preventing a cooperative lock condition from being aquired using the specified path . |
154,553 | public static ImmutableSortedSet < String > hosts ( String option ) { checkArgument ( option != null , "option is null" ) ; if ( option . trim ( ) . isEmpty ( ) ) { return ImmutableSortedSet . of ( HostAndPort . fromParts ( "" , Constants . DEFAULT_INTERNAL_PORT ) . toString ( ) ) ; } Splitter commaSplitter = Splitter ... | Helper method that takes a comma delimited list of host specs validates it and converts it to a set of valid coordinators |
154,554 | public static ImmutableSortedSet < String > hosts ( int ... ports ) { if ( ports . length == 0 ) { return ImmutableSortedSet . of ( HostAndPort . fromParts ( "" , Constants . DEFAULT_INTERNAL_PORT ) . toString ( ) ) ; } ImmutableSortedSet . Builder < String > sbld = ImmutableSortedSet . naturalOrder ( ) ; for ( int p :... | Convenience method mainly used in local cluster testing |
154,555 | public ClientResponseImpl call ( Object ... paramListIn ) { m_perCallStats = m_statsCollector . beginProcedure ( ) ; if ( m_perCallStats != null ) { StoredProcedureInvocation invoc = ( m_txnState != null ? m_txnState . getInvocation ( ) : null ) ; ParameterSet params = ( invoc != null ? invoc . getParams ( ) : Paramete... | Wraps coreCall with statistics code . |
154,556 | public boolean checkPartition ( TransactionState txnState , TheHashinator hashinator ) { if ( m_isSinglePartition ) { if ( hashinator == null ) { return false ; } if ( m_site . getCorrespondingPartitionId ( ) == MpInitiator . MP_INIT_PID ) { throw new ExpectedProcedureException ( "Single-partition procedure routed to m... | Check if the txn hashes to this partition . If not it should be restarted . |
154,557 | public static boolean isProcedureStackTraceElement ( String procedureName , StackTraceElement stel ) { int lastPeriodPos = stel . getClassName ( ) . lastIndexOf ( '.' ) ; if ( lastPeriodPos == - 1 ) { lastPeriodPos = 0 ; } else { ++ lastPeriodPos ; } String simpleName = stel . getClassName ( ) . substring ( lastPeriodP... | Test whether or not the given stack frame is within a procedure invocation |
154,558 | public void handleUpdateDeployment ( String jsonp , HttpServletRequest request , HttpServletResponse response , AuthenticationResult ar ) throws IOException , ServletException { String deployment = request . getParameter ( "deployment" ) ; if ( deployment == null || deployment . length ( ) == 0 ) { response . getWriter... | Update the deployment |
154,559 | public void handleRemoveUser ( String jsonp , String target , HttpServletRequest request , HttpServletResponse response , AuthenticationResult ar ) throws IOException , ServletException { try { DeploymentType newDeployment = CatalogUtil . getDeployment ( new ByteArrayInputStream ( getDeploymentBytes ( ) ) ) ; User user... | Handle DELETE for users |
154,560 | public void handleGetUsers ( String jsonp , String target , HttpServletRequest request , HttpServletResponse response ) throws IOException , ServletException { ObjectMapper mapper = new ObjectMapper ( ) ; User user = null ; String [ ] splitTarget = target . split ( "/" ) ; if ( splitTarget . length < 3 || splitTarget [... | Handle GET for users |
154,561 | public void handleGetExportTypes ( String jsonp , HttpServletResponse response ) throws IOException , ServletException { if ( jsonp != null ) { response . getWriter ( ) . write ( jsonp + "(" ) ; } JSONObject exportTypes = new JSONObject ( ) ; HashSet < String > exportList = new HashSet < > ( ) ; for ( ServerExportEnum ... | Handle GET for export types |
154,562 | void createZKDirectory ( String path ) { try { try { m_zk . create ( path , new byte [ 0 ] , Ids . OPEN_ACL_UNSAFE , CreateMode . PERSISTENT ) ; } catch ( KeeperException e ) { if ( e . code ( ) != Code . NODEEXISTS ) { throw e ; } } } catch ( Exception e ) { VoltDB . crashGlobalVoltDB ( "Failed to create Zookeeper nod... | Creates a ZooKeeper directory if it doesn t exist . Crashes VoltDB if the creation fails for any reason other then the path already existing . |
154,563 | public Pair < Integer , String > findRestoreCatalog ( ) { enterRestore ( ) ; try { m_snapshotToRestore = generatePlans ( ) ; } catch ( Exception e ) { VoltDB . crashGlobalVoltDB ( e . getMessage ( ) , true , e ) ; } if ( m_snapshotToRestore != null ) { int hostId = m_snapshotToRestore . hostId ; File file = new File ( ... | Generate restore and replay plans and return the catalog associated with the snapshot to restore if there is anything to restore . |
154,564 | void enterRestore ( ) { createZKDirectory ( VoltZK . restore ) ; createZKDirectory ( VoltZK . restore_barrier ) ; createZKDirectory ( VoltZK . restore_barrier2 ) ; try { m_generatedRestoreBarrier2 = m_zk . create ( VoltZK . restore_barrier2 + "/counter" , null , Ids . OPEN_ACL_UNSAFE , CreateMode . EPHEMERAL_SEQUENTIAL... | Enters the restore process . Creates ZooKeeper barrier node for this host . |
154,565 | void exitRestore ( ) { try { m_zk . delete ( m_generatedRestoreBarrier2 , - 1 ) ; } catch ( Exception e ) { VoltDB . crashLocalVoltDB ( "Unable to delete zk node " + m_generatedRestoreBarrier2 , false , e ) ; } if ( m_callback != null ) { m_callback . onSnapshotRestoreCompletion ( ) ; } LOG . debug ( "Waiting for all h... | Exists the restore process . Waits for all other hosts to complete first . This method blocks . |
154,566 | static SnapshotInfo consolidateSnapshotInfos ( Collection < SnapshotInfo > lastSnapshot ) { SnapshotInfo chosen = null ; if ( lastSnapshot != null ) { Iterator < SnapshotInfo > i = lastSnapshot . iterator ( ) ; while ( i . hasNext ( ) ) { SnapshotInfo next = i . next ( ) ; if ( chosen == null ) { chosen = next ; } else... | Picks a snapshot info for restore . A single snapshot might have different files scattered across multiple machines . All nodes must pick the same SnapshotInfo or different nodes will pick different catalogs to restore . Pick one SnapshotInfo and consolidate the per - node state into it . |
154,567 | private void sendSnapshotTxnId ( SnapshotInfo toRestore ) { long txnId = toRestore != null ? toRestore . txnId : 0 ; String jsonData = toRestore != null ? toRestore . toJSONObject ( ) . toString ( ) : "{}" ; LOG . debug ( "Sending snapshot ID " + txnId + " for restore to other nodes" ) ; try { m_zk . create ( VoltZK . ... | Send the txnId of the snapshot that was picked to restore from to the other hosts . If there was no snapshot to restore from send 0 . |
154,568 | private void sendLocalRestoreInformation ( Long max , Set < SnapshotInfo > snapshots ) { String jsonData = serializeRestoreInformation ( max , snapshots ) ; String zkNode = VoltZK . restore + "/" + m_hostId ; try { m_zk . create ( zkNode , jsonData . getBytes ( StandardCharsets . UTF_8 ) , Ids . OPEN_ACL_UNSAFE , Creat... | Send the information about the local snapshot files to the other hosts to generate restore plan . |
154,569 | private Long deserializeRestoreInformation ( List < String > children , Map < String , Set < SnapshotInfo > > snapshotFragments ) throws Exception { try { int recover = m_action . ordinal ( ) ; Long clStartTxnId = null ; for ( String node : children ) { if ( node . equals ( "snapshot_id" ) ) { continue ; } byte [ ] dat... | This function like all good functions does three things . It produces the command log start transaction Id . It produces a map of SnapshotInfo objects . And it errors if the remote start action does not match the local action . |
154,570 | private void changeState ( ) { if ( m_state == State . RESTORE ) { fetchSnapshotTxnId ( ) ; exitRestore ( ) ; m_state = State . REPLAY ; m_snapshotMonitor . addInterest ( this ) ; m_replayAgent . replay ( ) ; } else if ( m_state == State . REPLAY ) { m_state = State . TRUNCATE ; } else if ( m_state == State . TRUNCATE ... | Change the state of the restore agent based on the current state . |
154,571 | private Map < String , Snapshot > getSnapshots ( ) { Map < String , SnapshotPathType > paths = new HashMap < String , SnapshotPathType > ( ) ; if ( VoltDB . instance ( ) . getConfig ( ) . m_isEnterprise ) { if ( m_clSnapshotPath != null ) { paths . put ( m_clSnapshotPath , SnapshotPathType . SNAP_CL ) ; } } if ( m_snap... | Finds all the snapshots in all the places we know of which could possibly store snapshots like command log snapshots auto snapshots etc . |
154,572 | public CountDownLatch snapshotCompleted ( SnapshotCompletionEvent event ) { if ( ! event . truncationSnapshot || ! event . didSucceed ) { VoltDB . crashGlobalVoltDB ( "Failed to truncate command logs by snapshot" , false , null ) ; } else { m_truncationSnapshot = event . multipartTxnId ; m_truncationSnapshotPerPartitio... | All nodes will be notified about the completion of the truncation snapshot . |
154,573 | void shutdown ( ) throws InterruptedException { m_shouldStop = true ; if ( m_thread != null ) { m_selector . wakeup ( ) ; m_thread . join ( ) ; } } | Instruct the network to stop after the current loop |
154,574 | Connection registerChannel ( final SocketChannel channel , final InputHandler handler , final int interestOps , final ReverseDNSPolicy dns , final CipherExecutor cipherService , final SSLEngine sslEngine ) throws IOException { synchronized ( channel . blockingLock ( ) ) { channel . configureBlocking ( false ) ; channel... | Register a channel with the selector and create a Connection that will pass incoming events to the provided handler . |
154,575 | Future < ? > unregisterChannel ( Connection c ) { FutureTask < Object > ft = new FutureTask < Object > ( getUnregisterRunnable ( c ) , null ) ; m_tasks . offer ( ft ) ; m_selector . wakeup ( ) ; return ft ; } | Unregister a channel . The connections streams are not drained before finishing . |
154,576 | void addToChangeList ( final VoltPort port , final boolean runFirst ) { if ( runFirst ) { m_tasks . offer ( new Runnable ( ) { public void run ( ) { callPort ( port ) ; } } ) ; } else { m_tasks . offer ( new Runnable ( ) { public void run ( ) { installInterests ( port ) ; } } ) ; } m_selector . wakeup ( ) ; } | Set interest registrations for a port |
154,577 | protected void invokeCallbacks ( ThreadLocalRandom r ) { final Set < SelectionKey > selectedKeys = m_selector . selectedKeys ( ) ; final int keyCount = selectedKeys . size ( ) ; int startInx = r . nextInt ( keyCount ) ; int itInx = 0 ; Iterator < SelectionKey > it = selectedKeys . iterator ( ) ; while ( itInx < startIn... | Set the selected interest set on the port and run it . |
154,578 | public static String path ( String ... components ) { String path = components [ 0 ] ; for ( int i = 1 ; i < components . length ; i ++ ) { path = ZKUtil . joinZKPath ( path , components [ i ] ) ; } return path ; } | Helper to produce a valid path from variadic strings . |
154,579 | private String getSegmentFileName ( long currentId , long previousId ) { return PbdSegmentName . createName ( m_nonce , currentId , previousId , false ) ; } | Return a segment file name from m_nonce and current + previous segment ids . |
154,580 | private long getPreviousSegmentId ( File file ) { PbdSegmentName segmentName = PbdSegmentName . parseFile ( m_usageSpecificLog , file ) ; if ( segmentName . m_result != PbdSegmentName . Result . OK ) { throw new IllegalStateException ( "Invalid file name: " + file . getName ( ) ) ; } return segmentName . m_prevId ; } | Extract the previous segment id from a file name . |
154,581 | private void deleteStalePbdFile ( File file ) throws IOException { try { PBDSegment . setFinal ( file , false ) ; if ( m_usageSpecificLog . isDebugEnabled ( ) ) { m_usageSpecificLog . debug ( "Segment " + file . getName ( ) + " (final: " + PBDSegment . isFinal ( file ) + "), will be closed and deleted during init" ) ; ... | Delete a PBD segment that was identified as stale i . e . produced by earlier VoltDB releases |
154,582 | private void recoverSegment ( long segmentIndex , long segmentId , PbdSegmentName segmentName ) throws IOException { PBDSegment segment ; if ( segmentName . m_quarantined ) { segment = new PbdQuarantinedSegment ( segmentName . m_file , segmentIndex , segmentId ) ; } else { segment = newSegment ( segmentIndex , segmentI... | Recover a PBD segment and add it to m_segments |
154,583 | int numOpenSegments ( ) { int numOpen = 0 ; for ( PBDSegment segment : m_segments . values ( ) ) { if ( ! segment . isClosed ( ) ) { numOpen ++ ; } } return numOpen ; } | Used by test only |
154,584 | public CacheBuilder < K , V > expireAfterWrite ( long duration , TimeUnit unit ) { checkState ( expireAfterWriteNanos == UNSET_INT , "expireAfterWrite was already set to %s ns" , expireAfterWriteNanos ) ; checkArgument ( duration >= 0 , "duration cannot be negative: %s %s" , duration , unit ) ; this . expireAfterWriteN... | Specifies that each entry should be automatically removed from the cache once a fixed duration has elapsed after the entry s creation or the most recent replacement of its value . |
154,585 | public void revoke ( Grantee role ) { if ( ! hasRoleDirect ( role ) ) { throw Error . error ( ErrorCode . X_0P503 , role . getNameString ( ) ) ; } roles . remove ( role ) ; } | Revoke a direct role only |
154,586 | private OrderedHashSet addGranteeAndRoles ( OrderedHashSet set ) { Grantee candidateRole ; set . add ( this ) ; for ( int i = 0 ; i < roles . size ( ) ; i ++ ) { candidateRole = ( Grantee ) roles . get ( i ) ; if ( ! set . contains ( candidateRole ) ) { candidateRole . addGranteeAndRoles ( set ) ; } } return set ; } | Adds to given Set this . sName plus all roles and nested roles . |
154,587 | public void addAllRoles ( HashMap map ) { for ( int i = 0 ; i < roles . size ( ) ; i ++ ) { Grantee role = ( Grantee ) roles . get ( i ) ; map . put ( role . granteeName . name , role . roles ) ; } } | returns a map with grantee name keys and sets of granted roles as value |
154,588 | void clearPrivileges ( ) { roles . clear ( ) ; directRightsMap . clear ( ) ; grantedRightsMap . clear ( ) ; fullRightsMap . clear ( ) ; isAdmin = false ; } | Revokes all rights from this Grantee object . The map is cleared and the database administrator role attribute is set false . |
154,589 | boolean updateNestedRoles ( Grantee role ) { boolean hasNested = false ; if ( role != this ) { for ( int i = 0 ; i < roles . size ( ) ; i ++ ) { Grantee currentRole = ( Grantee ) roles . get ( i ) ; hasNested |= currentRole . updateNestedRoles ( role ) ; } } if ( hasNested ) { updateAllRights ( ) ; } return hasNested |... | Recursive method used with ROLE Grantee objects to set the fullRightsMap and admin flag for all the roles . |
154,590 | void addToFullRights ( HashMap map ) { Iterator it = map . keySet ( ) . iterator ( ) ; while ( it . hasNext ( ) ) { Object key = it . next ( ) ; Right add = ( Right ) map . get ( key ) ; Right existing = ( Right ) fullRightsMap . get ( key ) ; if ( existing == null ) { existing = add . duplicate ( ) ; fullRightsMap . p... | Full or partial rights are added to existing |
154,591 | public void toLeftJoin ( ) { assert ( ( m_leftNode != null && m_rightNode != null ) || ( m_leftNode == null && m_rightNode == null ) ) ; if ( m_leftNode == null && m_rightNode == null ) { return ; } if ( m_leftNode instanceof BranchNode ) { ( ( BranchNode ) m_leftNode ) . toLeftJoin ( ) ; } if ( m_rightNode instanceof ... | Transform all RIGHT joins from the tree into the LEFT ones by swapping the nodes and their join types |
154,592 | protected void extractSubTree ( List < JoinNode > leafNodes ) { JoinNode [ ] children = { m_leftNode , m_rightNode } ; for ( JoinNode child : children ) { if ( ! ( child instanceof BranchNode ) ) { continue ; } if ( ( ( BranchNode ) child ) . m_joinType == m_joinType ) { child . extractSubTree ( leafNodes ) ; } else { ... | Starting from the root recurse to its children stopping at the first join node of the different type and discontinue the tree at this point by replacing the join node with the temporary node which id matches the join node id . This join node is the root of the next sub - tree . |
154,593 | public boolean hasOuterJoin ( ) { assert ( m_leftNode != null && m_rightNode != null ) ; return m_joinType != JoinType . INNER || m_leftNode . hasOuterJoin ( ) || m_rightNode . hasOuterJoin ( ) ; } | Returns true if one of the tree nodes has outer join |
154,594 | public void extractEphemeralTableQueries ( List < StmtEphemeralTableScan > scans ) { if ( m_leftNode != null ) { m_leftNode . extractEphemeralTableQueries ( scans ) ; } if ( m_rightNode != null ) { m_rightNode . extractEphemeralTableQueries ( scans ) ; } } | Returns a list of immediate sub - queries which are part of this query . |
154,595 | public boolean allInnerJoins ( ) { return m_joinType == JoinType . INNER && ( m_leftNode == null || m_leftNode . allInnerJoins ( ) ) && ( m_rightNode == null || m_rightNode . allInnerJoins ( ) ) ; } | Returns if all the join operations within this join tree are inner joins . |
154,596 | public static void apply ( CompiledPlan plan , DeterminismMode detMode ) { if ( detMode == DeterminismMode . FASTER ) { return ; } if ( plan . hasDeterministicStatement ( ) ) { return ; } AbstractPlanNode planGraph = plan . rootPlanGraph ; if ( planGraph . isOrderDeterministic ( ) ) { return ; } AbstractPlanNode root =... | Only applies when stronger determinism is needed . |
154,597 | public void updateLastSeenUniqueIds ( VoltMessage message ) { long sequenceWithUniqueId = Long . MIN_VALUE ; boolean commandLog = ( message instanceof TransactionInfoBaseMessage && ( ( ( TransactionInfoBaseMessage ) message ) . isForReplay ( ) ) ) ; boolean sentinel = message instanceof MultiPartitionParticipantMessage... | Update last seen uniqueIds in the replay sequencer . This is used on MPI repair . |
154,598 | public void parseRestoreResultRow ( VoltTable vt ) { RestoreResultKey key = new RestoreResultKey ( ( int ) vt . getLong ( "HOST_ID" ) , ( int ) vt . getLong ( "PARTITION_ID" ) , vt . getString ( "TABLE" ) ) ; if ( containsKey ( key ) ) { get ( key ) . mergeData ( vt . getString ( "RESULT" ) . equals ( "SUCCESS" ) , vt ... | Parse a restore result table row and add to the set . |
154,599 | public static < E extends Comparable > int binarySearch ( List < ? extends E > list , E e , KeyPresentBehavior presentBehavior , KeyAbsentBehavior absentBehavior ) { checkNotNull ( e ) ; return binarySearch ( list , e , Ordering . natural ( ) , presentBehavior , absentBehavior ) ; } | Searches the specified naturally ordered list for the specified object using the binary search algorithm . |
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