idx int64 0 165k | question stringlengths 73 5.81k | target stringlengths 5 918 |
|---|---|---|
118,100 | public void tick ( ) { final long count = uncounted . sumThenReset ( ) ; final double instantRate = count / interval ; if ( initialized ) { rate += ( alpha * ( instantRate - rate ) ) ; } else { rate = instantRate ; initialized = true ; } } | Mark the passage of time and decay the current rate accordingly . |
118,101 | public void pruneZeroCounts ( ) { int i = 0 ; while ( i < rankedItems . size ( ) ) { if ( rankedItems . get ( i ) . getCount ( ) == 0 ) { rankedItems . remove ( i ) ; } else { i ++ ; } } } | Removes ranking entries that have a count of zero . |
118,102 | public static final void validateKey ( String key ) throws IllegalArgumentException { if ( StringUtils . isEmpty ( key ) || ".." . equals ( key ) || "." . equals ( key ) || ! KEY_PATTERN . matcher ( key ) . matches ( ) ) { LOG . error ( "'{}' does not appear to be valid {}" , key , KEY_PATTERN ) ; throw new IllegalArgu... | Validates key checking for potentially harmful patterns |
118,103 | public void readBlobTo ( String key , OutputStream out ) throws IOException , KeyNotFoundException { InputStreamWithMeta in = getBlob ( key ) ; if ( in == null ) { throw new IOException ( "Could not find " + key ) ; } byte [ ] buffer = new byte [ 2048 ] ; int len = 0 ; try { while ( ( len = in . read ( buffer ) ) > 0 )... | Reads the blob from the blob store and writes it into the output stream . |
118,104 | public byte [ ] readBlob ( String key ) throws IOException , KeyNotFoundException { ByteArrayOutputStream out = new ByteArrayOutputStream ( ) ; readBlobTo ( key , out ) ; byte [ ] bytes = out . toByteArray ( ) ; out . close ( ) ; return bytes ; } | Wrapper around readBlobTo which returns a ByteArray output stream . |
118,105 | private void logProgress ( String fileOffset , boolean prefixNewLine ) throws IOException { long now = System . currentTimeMillis ( ) ; LogEntry entry = new LogEntry ( now , componentID , fileOffset ) ; String line = entry . toString ( ) ; if ( prefixNewLine ) { lockFileStream . writeBytes ( System . lineSeparator ( ) ... | partial writes of prior lines |
118,106 | public void release ( ) throws IOException { lockFileStream . close ( ) ; if ( ! fs . delete ( lockFile , false ) ) { LOG . warn ( "Unable to delete lock file, Spout = {}" , componentID ) ; throw new IOException ( "Unable to delete lock file" ) ; } LOG . debug ( "Released lock file {}. Spout {}" , lockFile , componentI... | Release lock by deleting file |
118,107 | public static FileLock tryLock ( FileSystem fs , Path fileToLock , Path lockDirPath , String spoutId ) throws IOException { Path lockFile = new Path ( lockDirPath , fileToLock . getName ( ) ) ; try { FSDataOutputStream ostream = HdfsUtils . tryCreateFile ( fs , lockFile ) ; if ( ostream != null ) { LOG . debug ( "Acqui... | returns lock on file or null if file is already locked . throws if unexpected problem |
118,108 | public static LogEntry getLastEntry ( FileSystem fs , Path lockFile ) throws IOException { FSDataInputStream in = fs . open ( lockFile ) ; BufferedReader reader = new BufferedReader ( new InputStreamReader ( in ) ) ; String lastLine = null ; for ( String line = reader . readLine ( ) ; line != null ; line = reader . rea... | returns the last log entry |
118,109 | public static FileLock takeOwnership ( FileSystem fs , Path lockFile , LogEntry lastEntry , String spoutId ) throws IOException { try { if ( fs instanceof DistributedFileSystem ) { if ( ! ( ( DistributedFileSystem ) fs ) . recoverLease ( lockFile ) ) { LOG . warn ( "Unable to recover lease on lock file {} right now. Ca... | Takes ownership of the lock file if possible . |
118,110 | private static boolean sample ( Long rootId ) { if ( Double . compare ( sampleRate , 1.0d ) >= 0 ) return true ; int mod = ( int ) ( Math . abs ( rootId ) % PRECISION ) ; int threshold = ( int ) ( sampleRate * PRECISION ) ; return mod < threshold ; } | the tuple debug logs only output rate % the tuples with same rootId should be logged or not logged together . |
118,111 | private static boolean sample ( Set < Long > rootIds ) { if ( Double . compare ( sampleRate , 1.0d ) >= 0 ) return true ; int threshold = ( int ) ( sampleRate * PRECISION ) ; for ( Long id : rootIds ) { int mod = ( int ) ( Math . abs ( id ) % PRECISION ) ; if ( mod < threshold ) { return true ; } } return false ; } | one of the rootIds has been chosen the logs should be output |
118,112 | private static boolean sample ( Collection < Tuple > anchors ) { if ( Double . compare ( sampleRate , 1.0d ) >= 0 ) return true ; for ( Tuple t : anchors ) { if ( sample ( t . getMessageId ( ) . getAnchors ( ) ) ) { return true ; } } return false ; } | one of the tuples has been chosen the logs should be output |
118,113 | protected void doFlush ( ) { long v ; synchronized ( unFlushed ) { v = unFlushed . getCount ( ) ; } for ( Counter counter : counterMap . values ( ) ) { counter . inc ( v ) ; } if ( MetricUtils . metricAccurateCal ) { for ( AsmMetric assocMetric : assocMetrics ) { assocMetric . updateDirectly ( v ) ; } } this . unFlushe... | flush temp counter data to all windows & assoc metrics . |
118,114 | public List < Integer > grouper ( List < Object > values ) { if ( GrouperType . global . equals ( groupType ) ) { return JStormUtils . mk_list ( outTasks . get ( 0 ) ) ; } else if ( GrouperType . fields . equals ( groupType ) ) { return fieldsGrouper . grouper ( values ) ; } else if ( GrouperType . all . equals ( group... | get which task should tuple be sent to |
118,115 | public void put ( String localFile , String remoteTargetDirectory ) throws IOException { put ( new String [ ] { localFile } , remoteTargetDirectory , "0600" ) ; } | Copy a local file to a remote directory uses mode 0600 when creating the file on the remote side . |
118,116 | public void put ( byte [ ] data , String remoteFileName , String remoteTargetDirectory ) throws IOException { put ( data , remoteFileName , remoteTargetDirectory , "0600" ) ; } | Create a remote file and copy the contents of the passed byte array into it . Uses mode 0600 for creating the remote file . |
118,117 | public void put ( byte [ ] data , String remoteFileName , String remoteTargetDirectory , String mode ) throws IOException { Session sess = null ; if ( ( remoteFileName == null ) || ( remoteTargetDirectory == null ) || ( mode == null ) ) throw new IllegalArgumentException ( "Null argument." ) ; if ( mode . length ( ) !=... | Create a remote file and copy the contents of the passed byte array into it . The method use the specified mode when creating the file on the remote side . |
118,118 | public void get ( String remoteFile , String localTargetDirectory ) throws IOException { get ( new String [ ] { remoteFile } , localTargetDirectory ) ; } | Download a file from the remote server to a local directory . |
118,119 | public void get ( String remoteFiles [ ] , String localTargetDirectory ) throws IOException { Session sess = null ; if ( ( remoteFiles == null ) || ( localTargetDirectory == null ) ) throw new IllegalArgumentException ( "Null argument." ) ; if ( remoteFiles . length == 0 ) return ; String cmd = "scp -f " ; for ( int i ... | Download a set of files from the remote server to a local directory . |
118,120 | public boolean permit ( ReqContext context , String operation , Map params ) { if ( "execute" . equals ( operation ) ) { return permitClientRequest ( context , operation , params ) ; } else if ( "failRequest" . equals ( operation ) || "fetchRequest" . equals ( operation ) || "result" . equals ( operation ) ) { return p... | Authorizes request from to the DRPC server . |
118,121 | public String getAbsoluteSelfRegistrationPath ( ) { if ( selfRegistrationPath == null ) { return null ; } String root = registryOperations . getConfig ( ) . getTrimmed ( RegistryConstants . KEY_REGISTRY_ZK_ROOT , RegistryConstants . DEFAULT_ZK_REGISTRY_ROOT ) ; return RegistryPathUtils . join ( root , selfRegistrationP... | Get the absolute path to where the service has registered itself . This includes the base registry path Null until the service is registered |
118,122 | public void putComponent ( String serviceClass , String serviceName , String componentName , ServiceRecord record ) throws IOException { String path = RegistryUtils . componentPath ( user , serviceClass , serviceName , componentName ) ; registryOperations . mknode ( RegistryPathUtils . parentOf ( path ) , true ) ; regi... | Add a component |
118,123 | public String putService ( String username , String serviceClass , String serviceName , ServiceRecord record , boolean deleteTreeFirst ) throws IOException { String path = RegistryUtils . servicePath ( username , serviceClass , serviceName ) ; if ( deleteTreeFirst ) { registryOperations . delete ( path , true ) ; } reg... | Add a service under a path optionally purging any history |
118,124 | public void deleteComponent ( String componentName ) throws IOException { String path = RegistryUtils . componentPath ( user , jstormServiceClass , instanceName , componentName ) ; registryOperations . delete ( path , false ) ; } | Delete a component |
118,125 | public void deleteChildren ( String path , boolean recursive ) throws IOException { List < String > childNames = null ; try { childNames = registryOperations . list ( path ) ; } catch ( PathNotFoundException e ) { return ; } for ( String childName : childNames ) { String child = join ( path , childName ) ; registryOper... | Delete the children of a path - but not the path itself . It is not an error if the path does not exist |
118,126 | public BaseWindowedBolt < T > countWindow ( long size ) { ensurePositiveTime ( size ) ; setSizeAndSlide ( size , DEFAULT_SLIDE ) ; this . windowAssigner = TumblingCountWindows . create ( size ) ; return this ; } | define a tumbling count window |
118,127 | public BaseWindowedBolt < T > countWindow ( long size , long slide ) { ensurePositiveTime ( size , slide ) ; ensureSizeGreaterThanSlide ( size , slide ) ; setSizeAndSlide ( size , slide ) ; this . windowAssigner = SlidingCountWindows . create ( size , slide ) ; return this ; } | define a sliding count window |
118,128 | public BaseWindowedBolt < T > timeWindow ( Time size ) { long s = size . toMilliseconds ( ) ; ensurePositiveTime ( s ) ; setSizeAndSlide ( s , DEFAULT_SLIDE ) ; this . windowAssigner = TumblingProcessingTimeWindows . of ( s ) ; return this ; } | define a tumbling processing time window |
118,129 | public BaseWindowedBolt < T > withStateSize ( Time size ) { long s = size . toMilliseconds ( ) ; ensurePositiveTime ( s ) ; ensureStateSizeGreaterThanWindowSize ( this . size , s ) ; this . stateSize = s ; if ( WindowAssigner . isEventTime ( this . windowAssigner ) ) { this . stateWindowAssigner = TumblingEventTimeWind... | add state window to tumbling windows . If set jstorm will use state window size to accumulate user states instead of deleting the states right after purging a window . |
118,130 | public BaseWindowedBolt < T > timeWindow ( Time size , Time slide ) { long s = size . toMilliseconds ( ) ; long l = slide . toMilliseconds ( ) ; ensurePositiveTime ( s , l ) ; ensureSizeGreaterThanSlide ( s , l ) ; setSizeAndSlide ( s , l ) ; this . windowAssigner = SlidingProcessingTimeWindows . of ( s , l ) ; return ... | define a sliding processing time window |
118,131 | public BaseWindowedBolt < T > ingestionTimeWindow ( Time size ) { long s = size . toMilliseconds ( ) ; ensurePositiveTime ( s ) ; setSizeAndSlide ( s , DEFAULT_SLIDE ) ; this . windowAssigner = TumblingIngestionTimeWindows . of ( s ) ; return this ; } | define a tumbling ingestion time window |
118,132 | public BaseWindowedBolt < T > ingestionTimeWindow ( Time size , Time slide ) { long s = size . toMilliseconds ( ) ; long l = slide . toMilliseconds ( ) ; ensurePositiveTime ( s , l ) ; ensureSizeGreaterThanSlide ( s , l ) ; setSizeAndSlide ( s , l ) ; this . windowAssigner = SlidingIngestionTimeWindows . of ( s , l ) ;... | define a sliding ingestion time window |
118,133 | public BaseWindowedBolt < T > eventTimeWindow ( Time size ) { long s = size . toMilliseconds ( ) ; ensurePositiveTime ( s ) ; setSizeAndSlide ( s , DEFAULT_SLIDE ) ; this . windowAssigner = TumblingEventTimeWindows . of ( s ) ; return this ; } | define a tumbling event time window |
118,134 | public BaseWindowedBolt < T > eventTimeWindow ( Time size , Time slide ) { long s = size . toMilliseconds ( ) ; long l = slide . toMilliseconds ( ) ; ensurePositiveTime ( s , l ) ; ensureSizeGreaterThanSlide ( s , l ) ; setSizeAndSlide ( s , l ) ; this . windowAssigner = SlidingEventTimeWindows . of ( s , l ) ; return ... | define a sliding event time window |
118,135 | public BaseWindowedBolt < T > sessionTimeWindow ( Time size ) { long s = size . toMilliseconds ( ) ; ensurePositiveTime ( s ) ; setSizeAndSlide ( s , DEFAULT_SLIDE ) ; this . windowAssigner = ProcessingTimeSessionWindows . withGap ( s ) ; return this ; } | define a session processing time window |
118,136 | public BaseWindowedBolt < T > sessionEventTimeWindow ( Time size ) { long s = size . toMilliseconds ( ) ; ensurePositiveTime ( s ) ; setSizeAndSlide ( s , DEFAULT_SLIDE ) ; this . windowAssigner = EventTimeSessionWindows . withGap ( s ) ; return this ; } | define a session event time window |
118,137 | public BaseWindowedBolt < T > withMaxLagMs ( Time maxLag ) { this . maxLagMs = maxLag . toMilliseconds ( ) ; ensureNonNegativeTime ( maxLagMs ) ; return this ; } | define max lag in ms only for event time windows |
118,138 | public static List < String > getPid ( Map conf , String workerId ) throws IOException { String workerPidPath = StormConfig . worker_pids_root ( conf , workerId ) ; return PathUtils . read_dir_contents ( workerPidPath ) ; } | When worker has been started by manually and supervisor it will return multiple pid |
118,139 | private static boolean isHealthyUnderPath ( String path , long timeout ) { if ( path == null ) { return true ; } List < String > commands = generateCommands ( path ) ; if ( commands != null && commands . size ( ) > 0 ) { for ( String command : commands ) { ScriptProcessLauncher scriptProcessLauncher = new ScriptProcess... | return false if the health check failed when running the scripts under the path |
118,140 | public String toLocal ( Principal principal ) { return principal == null ? null : principal . getName ( ) . split ( "[/@]" ) [ 0 ] ; } | Convert a Principal to a local user name . |
118,141 | protected void handleCheckpoint ( Tuple checkpointTuple , Action action , long txid ) { collector . emit ( CheckpointSpout . CHECKPOINT_STREAM_ID , checkpointTuple , new Values ( txid , action ) ) ; collector . ack ( checkpointTuple ) ; } | Forwards the checkpoint tuple downstream . Sub - classes can override with the logic for handling checkpoint tuple . |
118,142 | private void processCheckpoint ( Tuple input ) { Action action = ( Action ) input . getValueByField ( CheckpointSpout . CHECKPOINT_FIELD_ACTION ) ; long txid = input . getLongByField ( CheckpointSpout . CHECKPOINT_FIELD_TXID ) ; if ( shouldProcessTransaction ( action , txid ) ) { LOG . debug ( "Processing action {}, tx... | Invokes handleCheckpoint once checkpoint tuple is received on all input checkpoint streams to this component . |
118,143 | private int getCheckpointInputTaskCount ( TopologyContext context ) { int count = 0 ; for ( GlobalStreamId inputStream : context . getThisSources ( ) . keySet ( ) ) { if ( CheckpointSpout . CHECKPOINT_STREAM_ID . equals ( inputStream . get_streamId ( ) ) ) { count += context . getComponentTasks ( inputStream . get_comp... | returns the total number of input checkpoint streams across all input tasks to this component . |
118,144 | private boolean shouldProcessTransaction ( Action action , long txid ) { TransactionRequest request = new TransactionRequest ( action , txid ) ; Integer count ; if ( ( count = transactionRequestCount . get ( request ) ) == null ) { transactionRequestCount . put ( request , 1 ) ; count = 1 ; } else { transactionRequestC... | Checks if check points have been received from all tasks across all input streams to this component |
118,145 | public static NestableFieldValidator fv ( final Class cls , final boolean nullAllowed ) { return new NestableFieldValidator ( ) { public void validateField ( String pd , String name , Object field ) throws IllegalArgumentException { if ( nullAllowed && field == null ) { return ; } if ( ! cls . isInstance ( field ) ) { ... | Returns a new NestableFieldValidator for a given class . |
118,146 | public static NestableFieldValidator listFv ( Class cls , boolean nullAllowed ) { return listFv ( fv ( cls , false ) , nullAllowed ) ; } | Returns a new NestableFieldValidator for a List of the given Class . |
118,147 | public static NestableFieldValidator listFv ( final NestableFieldValidator validator , final boolean nullAllowed ) { return new NestableFieldValidator ( ) { public void validateField ( String pd , String name , Object field ) throws IllegalArgumentException { if ( nullAllowed && field == null ) { return ; } if ( field ... | Returns a new NestableFieldValidator for a List where each item is validated by validator . |
118,148 | public static NestableFieldValidator mapFv ( Class key , Class val , boolean nullAllowed ) { return mapFv ( fv ( key , false ) , fv ( val , false ) , nullAllowed ) ; } | Returns a new NestableFieldValidator for a Map of key to val . |
118,149 | public static NestableFieldValidator mapFv ( final NestableFieldValidator key , final NestableFieldValidator val , final boolean nullAllowed ) { return new NestableFieldValidator ( ) { @ SuppressWarnings ( "unchecked" ) public void validateField ( String pd , String name , Object field ) throws IllegalArgumentException... | Returns a new NestableFieldValidator for a Map . |
118,150 | public void doHeartbeat ( ) throws IOException { int curTime = TimeUtils . current_time_secs ( ) ; WorkerHeartbeat hb = new WorkerHeartbeat ( curTime , topologyId , taskIds , port ) ; LOG . debug ( "Doing heartbeat:" + workerId + ",port:" + port + ",hb" + hb . toString ( ) ) ; LocalState state = getWorkerState ( ) ; st... | do heartbeat and update LocalState |
118,151 | public void updateTime ( String streamId , String name , long start , long end , int count , boolean mergeTopology ) { if ( start > 0 && count > 0 ) { AsmMetric existingMetric = findMetric ( streamId , name , MetricType . HISTOGRAM , mergeTopology ) ; if ( existingMetric instanceof AsmHistogram ) { AsmHistogram histogr... | almost the same implementation of above update but improves performance for histograms |
118,152 | public static String process_pid ( ) { String name = ManagementFactory . getRuntimeMXBean ( ) . getName ( ) ; String [ ] split = name . split ( "@" ) ; if ( split . length != 2 ) { throw new RuntimeException ( "Got unexpected process name: " + name ) ; } return split [ 0 ] ; } | Gets the pid of this JVM because Java doesn t provide a real way to do this . |
118,153 | public static void extractDirFromJar ( String jarpath , String dir , String destdir ) { ZipFile zipFile = null ; try { zipFile = new ZipFile ( jarpath ) ; Enumeration < ? extends ZipEntry > entries = zipFile . entries ( ) ; while ( entries != null && entries . hasMoreElements ( ) ) { ZipEntry ze = entries . nextElement... | Extra dir from the jar to destdir |
118,154 | public static boolean zipContainsDir ( String zipfile , String resources ) { Enumeration < ? extends ZipEntry > entries = null ; try { entries = ( new ZipFile ( zipfile ) ) . entries ( ) ; while ( entries != null && entries . hasMoreElements ( ) ) { ZipEntry ze = entries . nextElement ( ) ; String name = ze . getName (... | Check whether the zipfile contain the resources |
118,155 | protected boolean isDiscarded ( long batchId ) { if ( batchId == TransactionCommon . INIT_BATCH_ID ) { return false ; } else if ( ! boltStatus . equals ( State . ACTIVE ) ) { LOG . debug ( "Bolt is not active, state={}, tuple is going to be discarded" , boltStatus . toString ( ) ) ; return true ; } else if ( batchId <=... | Check if the incoming batch would be discarded . Generally the incoming batch shall be discarded while bolt is under rollback or it is expired . |
118,156 | public static < K , V > Map < K , V > select_keys_pred ( Set < K > filter , Map < K , V > all ) { Map < K , V > filterMap = new HashMap < > ( ) ; for ( Entry < K , V > entry : all . entrySet ( ) ) { if ( ! filter . contains ( entry . getKey ( ) ) ) { filterMap . put ( entry . getKey ( ) , entry . getValue ( ) ) ; } } r... | filter the map |
118,157 | public static void exec_command ( String command ) throws IOException { launchProcess ( command , new HashMap < String , String > ( ) , false ) ; } | use launchProcess to execute a command |
118,158 | public static boolean isProcDead ( String pid ) { if ( ! OSInfo . isLinux ( ) ) { return false ; } String path = "/proc/" + pid ; File file = new File ( path ) ; if ( ! file . exists ( ) ) { LOG . info ( "Process " + pid + " is dead" ) ; return true ; } return false ; } | This function is only for linux |
118,159 | public static < T > List < T > interleave_all ( List < List < T > > splitup ) { ArrayList < T > rtn = new ArrayList < > ( ) ; int maxLength = 0 ; for ( List < T > e : splitup ) { int len = e . size ( ) ; if ( maxLength < len ) { maxLength = len ; } } for ( int i = 0 ; i < maxLength ; i ++ ) { for ( List < T > e : split... | balance all T |
118,160 | public static int getSupervisorPortNum ( Map conf , int sysCpuNum , Long physicalMemSize ) { double cpuWeight = ConfigExtension . getSupervisorSlotsPortCpuWeight ( conf ) ; int cpuPortNum = ( int ) ( sysCpuNum / cpuWeight ) ; if ( cpuPortNum < 1 ) { LOG . info ( "Invalid supervisor.slots.port.cpu.weight setting :" + cp... | calculate port number from cpu number and physical memory size |
118,161 | public static Map < String , Double > getMetrics ( Map conf , String topologyName , MetaType metricType , Integer window ) { NimbusClientWrapper nimbusClient = null ; Iface client = null ; Map < String , Double > summary = new HashMap < > ( ) ; try { nimbusClient = new NimbusClientWrapper ( ) ; nimbusClient . init ( co... | Get Topology Metrics |
118,162 | public < T > T time ( Callable < T > event ) throws Exception { final long startTime = System . currentTimeMillis ( ) ; try { return event . call ( ) ; } finally { update ( System . currentTimeMillis ( ) - startTime ) ; } } | Times and records the duration of event . |
118,163 | private Map < Integer , LocalAssignment > getLocalAssign ( StormClusterState stormClusterState , String supervisorId , Map < String , Assignment > assignments ) throws Exception { Map < Integer , LocalAssignment > portToAssignment = new HashMap < > ( ) ; for ( Entry < String , Assignment > assignEntry : assignments . e... | a port must be assigned to a topology |
118,164 | @ SuppressWarnings ( "unused" ) private Map < Integer , LocalAssignment > readMyTasks ( StormClusterState stormClusterState , String topologyId , String supervisorId , Assignment assignmentInfo ) throws Exception { Map < Integer , LocalAssignment > portTasks = new HashMap < > ( ) ; Set < ResourceWorkerSlot > workers = ... | get local node s tasks |
118,165 | public static Map < String , String > getTopologyCodeLocations ( Map < String , Assignment > assignments , String supervisorId ) throws Exception { Map < String , String > rtn = new HashMap < > ( ) ; for ( Entry < String , Assignment > entry : assignments . entrySet ( ) ) { String topologyId = entry . getKey ( ) ; Assi... | get master code dir for each topology |
118,166 | public void emitDirect ( int taskId , String streamId , Tuple anchor , List < Object > tuple ) { emitDirect ( taskId , streamId , Arrays . asList ( anchor ) , tuple ) ; } | Emits a tuple directly to the specified task id on the specified stream . If the target bolt does not subscribe to this bolt using a direct grouping the tuple will not be sent . If the specified output stream is not declared as direct or the target bolt subscribes with a non - direct grouping an error will occur at run... |
118,167 | private boolean monitorApplication ( ApplicationId appId ) throws YarnException , IOException { Integer monitorTimes = JOYConstants . MONITOR_TIMES ; while ( true ) { try { Thread . sleep ( JOYConstants . MONITOR_TIME_INTERVAL ) ; } catch ( InterruptedException e ) { LOG . debug ( "Thread sleep in monitoring loop inter... | Monitor the submitted application for completion . Kill application if time expires . |
118,168 | public List < Long > getAllVersions ( ) throws IOException { List < Long > ret = new ArrayList < > ( ) ; for ( String s : listDir ( _root ) ) { if ( s . endsWith ( FINISHED_VERSION_SUFFIX ) ) { ret . add ( validateAndGetVersion ( s ) ) ; } } Collections . sort ( ret ) ; Collections . reverse ( ret ) ; return ret ; } | Sorted from most recent to oldest |
118,169 | public static void main ( String [ ] args ) { try { KeyGenerator kgen = KeyGenerator . getInstance ( "Blowfish" ) ; SecretKey skey = kgen . generateKey ( ) ; byte [ ] raw = skey . getEncoded ( ) ; String keyString = new String ( Hex . encodeHex ( raw ) ) ; System . out . println ( "storm -c " + SECRET_KEY + "=" + keySt... | Produce a blowfish key to be used in Storm jar command |
118,170 | public boolean checkHeartBeat ( ) { String dataPath = executorMeta . getLocalDir ( ) ; File localstate = new File ( dataPath + "/data/" + startType + "/" + startType + ".heartbeat/" ) ; Long modefyTime = localstate . lastModified ( ) ; if ( System . currentTimeMillis ( ) - modefyTime > JOYConstants . EXECUTOR_HEARTBEAT... | check supervisor s heartBeat |
118,171 | public boolean setJstormConf ( String key , String value ) { String line = " " + key + ": " + value ; try { Files . write ( Paths . get ( "deploy/jstorm/conf/storm.yaml" ) , line . getBytes ( ) , StandardOpenOption . APPEND ) ; } catch ( IOException e ) { LOG . error ( e ) ; return false ; } return true ; } | set local conf |
118,172 | private Map < String , String > generateSidToHost ( ) { Map < String , String > sidToHostname = new HashMap < > ( ) ; if ( oldAssignment != null ) { sidToHostname . putAll ( oldAssignment . getNodeHost ( ) ) ; } for ( Entry < String , SupervisorInfo > entry : cluster . entrySet ( ) ) { String supervisorId = entry . get... | Do we need just handle the case when type is ASSIGN_TYPE_NEW? |
118,173 | public static int tryPort ( int port ) throws IOException { ServerSocket socket = new ServerSocket ( port ) ; int rtn = socket . getLocalPort ( ) ; socket . close ( ) ; return rtn ; } | Check whether the port is available to bind |
118,174 | private Set < String > get_cleanup_ids ( StormClusterState clusterState , List < String > activeTopologies ) throws Exception { List < String > task_ids = clusterState . task_storms ( ) ; List < String > heartbeat_ids = clusterState . heartbeat_storms ( ) ; List < String > error_ids = clusterState . task_error_storms (... | get topology ids that need to be cleaned up |
118,175 | public Assignment mkAssignment ( TopologyAssignEvent event ) throws Exception { String topologyId = event . getTopologyId ( ) ; LOG . info ( "Determining assignment for " + topologyId ) ; TopologyAssignContext context = prepareTopologyAssign ( event ) ; Set < ResourceWorkerSlot > assignments ; if ( ! StormConfig . loca... | make assignments for a topology The nimbus core function this function has been totally rewrite |
118,176 | public static Set < Integer > getNewOrChangedTaskIds ( Set < ResourceWorkerSlot > oldWorkers , Set < ResourceWorkerSlot > workers ) { Set < Integer > rtn = new HashSet < > ( ) ; HashMap < String , ResourceWorkerSlot > workerPortMap = HostPortToWorkerMap ( oldWorkers ) ; for ( ResourceWorkerSlot worker : workers ) { Res... | get all task ids which are newly assigned or reassigned |
118,177 | public static List < WorkerSlot > sortSlots ( Set < WorkerSlot > allSlots , int needSlotNum ) { Map < String , List < WorkerSlot > > nodeMap = new HashMap < > ( ) ; for ( WorkerSlot np : allSlots ) { String node = np . getNodeId ( ) ; List < WorkerSlot > list = nodeMap . get ( node ) ; if ( list == null ) { list = new ... | sort slots the purpose is to ensure that the tasks are assigned in balancing |
118,178 | public Set < Integer > getUnstoppedSlots ( Set < Integer > aliveTasks , Map < String , SupervisorInfo > supInfos , Assignment existAssignment ) { Set < Integer > ret = new HashSet < > ( ) ; Set < ResourceWorkerSlot > oldWorkers = existAssignment . getWorkers ( ) ; Set < String > aliveSupervisors = supInfos . keySet ( )... | Get unstopped slots from alive task list |
118,179 | public static void getFreeSlots ( Map < String , SupervisorInfo > supervisorInfos , StormClusterState stormClusterState ) throws Exception { Map < String , Assignment > assignments = Cluster . get_all_assignment ( stormClusterState , null ) ; for ( Entry < String , Assignment > entry : assignments . entrySet ( ) ) { As... | Get free resources |
118,180 | public Set < Integer > getAliveTasks ( String topologyId , Set < Integer > taskIds ) throws Exception { Set < Integer > aliveTasks = new HashSet < > ( ) ; for ( int taskId : taskIds ) { boolean isDead = NimbusUtils . isTaskDead ( nimbusData , topologyId , taskId ) ; if ( ! isDead ) { aliveTasks . add ( taskId ) ; } } r... | find all alive task ids . Do not assume that clocks are synchronized . Task heartbeat is only used so that nimbus knows when it s received a new heartbeat . All timing is done by nimbus and tracked through task - heartbeat - cache |
118,181 | public void backupAssignment ( Assignment assignment , TopologyAssignEvent event ) { String topologyId = event . getTopologyId ( ) ; String topologyName = event . getTopologyName ( ) ; try { StormClusterState zkClusterState = nimbusData . getStormClusterState ( ) ; Map < Integer , String > tasks = Cluster . get_all_tas... | Backup topology assignment to ZK |
118,182 | public BoltDeclarer setBolt ( String id , ITridentBatchBolt bolt , Integer parallelism , Set < String > committerBatches , Map < String , String > batchGroups ) { markBatchGroups ( id , batchGroups ) ; Component c = new Component ( bolt , parallelism , committerBatches ) ; _bolts . put ( id , c ) ; return new BoltDecla... | map from stream name to batch id |
118,183 | private void commitProgress ( FileOffset position ) { if ( position == null ) { return ; } if ( lock != null && canCommitNow ( ) ) { try { String pos = position . toString ( ) ; lock . heartbeat ( pos ) ; LOG . debug ( "{} Committed progress. {}" , spoutId , pos ) ; acksSinceLastCommit = 0 ; commitTimeElapsed . set ( f... | will commit progress into lock file if commit threshold is reached |
118,184 | private FileLock getOldestExpiredLock ( ) throws IOException { DirLock dirlock = DirLock . tryLock ( hdfs , lockDirPath ) ; if ( dirlock == null ) { dirlock = DirLock . takeOwnershipIfStale ( hdfs , lockDirPath , lockTimeoutSec ) ; if ( dirlock == null ) { LOG . debug ( "Spout {} could not take over ownership of DirLoc... | If clocks in sync then acquires the oldest expired lock Else on first call just remembers the oldest expired lock on next call check if the lock is updated . if not updated then acquires the lock |
118,185 | private FileReader createFileReader ( Path file ) throws IOException { if ( readerType . equalsIgnoreCase ( Configs . SEQ ) ) { return new SequenceFileReader ( this . hdfs , file , conf ) ; } if ( readerType . equalsIgnoreCase ( Configs . TEXT ) ) { return new TextFileReader ( this . hdfs , file , conf ) ; } try { Clas... | Creates a reader that reads from beginning of file |
118,186 | private Path renameToInProgressFile ( Path file ) throws IOException { Path newFile = new Path ( file . toString ( ) + inprogress_suffix ) ; try { if ( hdfs . rename ( file , newFile ) ) { return newFile ; } throw new RenameException ( file , newFile ) ; } catch ( IOException e ) { throw new RenameException ( file , ne... | Renames files with . inprogress suffix |
118,187 | private Path getFileForLockFile ( Path lockFile , Path sourceDirPath ) throws IOException { String lockFileName = lockFile . getName ( ) ; Path dataFile = new Path ( sourceDirPath + Path . SEPARATOR + lockFileName + inprogress_suffix ) ; if ( hdfs . exists ( dataFile ) ) { return dataFile ; } dataFile = new Path ( sour... | Returns the corresponding input file in the sourceDirPath for the specified lock file . If no such file is found then returns null |
118,188 | private Path renameCompletedFile ( Path file ) throws IOException { String fileName = file . toString ( ) ; String fileNameMinusSuffix = fileName . substring ( 0 , fileName . indexOf ( inprogress_suffix ) ) ; String newName = new Path ( fileNameMinusSuffix ) . getName ( ) ; Path newFile = new Path ( archiveDirPath + Pa... | renames files and returns the new file path |
118,189 | public static StormZkClusterState mkStormZkClusterState ( Map conf ) throws Exception { Map realConf = getFullConf ( conf ) ; return new StormZkClusterState ( realConf ) ; } | This function bring some hacks to JStorm this isn t a good way |
118,190 | public void enqueue ( TaskMessage message , Channel channel ) { while ( ! bstartRec ) { LOG . info ( "check whether deserialize queues have already been created" ) ; boolean isFinishInit = true ; for ( Integer task : workerTasks ) { if ( deserializeQueues . get ( task ) == null ) { isFinishInit = false ; JStormUtils . ... | enqueue a received message |
118,191 | protected void closeChannel ( Channel channel ) { MessageDecoder . removeTransmitHistogram ( channel ) ; channel . close ( ) . awaitUninterruptibly ( ) ; allChannels . remove ( channel ) ; } | close a channel |
118,192 | public void close ( ) { LOG . info ( "Begin to shutdown NettyServer" ) ; if ( allChannels != null ) { new Thread ( new Runnable ( ) { public void run ( ) { try { allChannels . close ( ) . await ( 1 , TimeUnit . SECONDS ) ; LOG . info ( "Successfully close all channel" ) ; factory . releaseExternalResources ( ) ; } catc... | close all channels and release resources |
118,193 | private TimeWindow mergeSessionWindows ( TimeWindow oldWindow , TimeWindow newWindow ) { if ( oldWindow . intersects ( newWindow ) ) { return oldWindow . cover ( newWindow ) ; } return newWindow ; } | merges two windows if there s an overlap between two windows return merged window ; otherwise return the new window itself . |
118,194 | public static String getMetricValue ( MetricSnapshot snapshot ) { if ( snapshot == null ) return null ; MetricType type = MetricType . parse ( snapshot . get_metricType ( ) ) ; switch ( type ) { case COUNTER : return format ( snapshot . get_longValue ( ) ) ; case GAUGE : return format ( snapshot . get_doubleValue ( ) )... | get MetricSnapshot formatted value string |
118,195 | public static String extractGroup ( String [ ] strs ) { if ( strs . length < 6 ) return null ; return strs [ strs . length - 2 ] ; } | Extract Group from WM |
118,196 | public static String extractMetricName ( String [ ] strs ) { if ( strs . length < 6 ) return null ; return strs [ strs . length - 1 ] ; } | Extract MetricName from CC |
118,197 | public static UIComponentMetric getComponentMetric ( MetricInfo info , int window , String compName , List < ComponentSummary > componentSummaries ) { UIComponentMetric compMetric = new UIComponentMetric ( compName ) ; if ( info != null ) { for ( Map . Entry < String , Map < Integer , MetricSnapshot > > metric : info .... | get the specific component metric |
118,198 | public static List < UITaskMetric > getTaskMetrics ( MetricInfo info , String component , int window ) { TreeMap < Integer , UITaskMetric > taskData = new TreeMap < > ( ) ; if ( info != null ) { for ( Map . Entry < String , Map < Integer , MetricSnapshot > > metric : info . get_metrics ( ) . entrySet ( ) ) { String nam... | get all task metrics in the specific component |
118,199 | public static UITaskMetric getTaskMetric ( List < MetricInfo > taskStreamMetrics , String component , int id , int window ) { UITaskMetric taskMetric = new UITaskMetric ( component , id ) ; if ( taskStreamMetrics . size ( ) > 1 ) { MetricInfo info = taskStreamMetrics . get ( 0 ) ; if ( info != null ) { for ( Map . Entr... | get the specific task metric |
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