Package org.nuxeo.lib.stream.computation.log

Class ComputationRunner

java.lang.Object
org.nuxeo.lib.stream.computation.log.ComputationRunner
All Implemented Interfaces:
Runnable, RebalanceListener
public class ComputationRunner extends Object implements Runnable, RebalanceListener
Thread driving a Computation
Since:
9.3

  • Field Details

    • READ_TIMEOUT

      public static final Duration READ_TIMEOUT

    • STARVING_TIMEOUT_MS

      protected static final long STARVING_TIMEOUT_MS
      See Also:

    • INACTIVITY_BREAK_MS

      protected static final long INACTIVITY_BREAK_MS
      See Also:

    • CHECKPOINT_MAX_RETRY

      protected static final int CHECKPOINT_MAX_RETRY
      See Also:

    • CHECKPOINT_PAUSE_MS

      protected static final int CHECKPOINT_PAUSE_MS
      See Also:

    • SLOW_COMPUTATION_THRESHOLD_NS

      public static final long SLOW_COMPUTATION_THRESHOLD_NS
      See Also:

    • streamManager

      protected final LogStreamManager streamManager

    • metadata

      protected final ComputationMetadataMapping metadata

    • tailer

      protected final LogTailer<Record> tailer

    • supplier

      protected final Supplier<Computation> supplier

    • assignmentLatch

      protected final CountDownLatch assignmentLatch

    • lowWatermark

      protected final WatermarkMonotonicInterval lowWatermark

    • policy

      protected final ComputationPolicy policy

    • context

      protected ComputationContextImpl context

    • stop

      protected volatile boolean stop

    • drain

      protected volatile boolean drain

    • computation

      protected Computation computation

    • counter

      protected long counter

    • inRecords

      protected long inRecords

    • inCheckpointRecords

      protected long inCheckpointRecords

    • outRecords

      protected long outRecords

    • lastReadTime

      protected long lastReadTime

    • lastTimerExecution

      protected long lastTimerExecution

    • readTimeout

      protected Duration readTimeout

    • threadName

      protected String threadName

    • defaultAssignment

      protected List<LogPartition> defaultAssignment

    • NUXEO_METRICS_REGISTRY_NAME

      public static final String NUXEO_METRICS_REGISTRY_NAME
      See Also:

    • GLOBAL_FAILURE_COUNT_REGISTRY_NAME

      public static final String GLOBAL_FAILURE_COUNT_REGISTRY_NAME

    • registry

      protected final io.dropwizard.metrics5.MetricRegistry registry

    • globalFailureCount

      protected io.dropwizard.metrics5.Counter globalFailureCount

    • failureCount

      protected io.dropwizard.metrics5.Counter failureCount

    • recordSkippedCount

      protected io.dropwizard.metrics5.Counter recordSkippedCount

    • runningCount

      protected io.dropwizard.metrics5.Counter runningCount

    • processRecordTimer

      protected io.dropwizard.metrics5.Timer processRecordTimer

    • processTimerTimer

      protected io.dropwizard.metrics5.Timer processTimerTimer

    • skipFailures

      protected static AtomicInteger skipFailures

    • recordActivity

      protected boolean recordActivity

    • lastSpanContext

      protected io.opencensus.trace.SpanContext lastSpanContext

  • Constructor Details

  • Method Details

    • stop

      public void stop()

    • drain

      public void drain()

    • waitForAssignments

      public boolean waitForAssignments(Duration timeout) throws InterruptedException
      Throws:
      InterruptedException

    • run

      public void run()
      Specified by:
      run in interface Runnable

    • runOnce

      protected ComputationRunner.ReturnCode runOnce()

    • registerMetrics

      protected void registerMetrics()

    • closeTailer

      protected void closeTailer()

    • processLoop

      protected void processLoop() throws InterruptedException
      Throws:
      InterruptedException

    • continueLoop

      protected boolean continueLoop()

    • processTimer

      protected boolean processTimer()

    • processTimerWithTracing

      protected boolean processTimerWithTracing(long now, LinkedHashMap<String,Long> sortedTimer)

    • processTimerWithRetry

      protected void processTimerWithRetry(String key, Long value)

    • processWithRetry

      protected void processWithRetry(net.jodah.failsafe.function.CheckedRunnable runnable)

    • processRecord

      protected boolean processRecord() throws InterruptedException
      Throws:
      InterruptedException

    • processRecordWithTracing

      protected void processRecordWithTracing(String from, Record record)

    • getSpanFromRecord

      protected io.opencensus.trace.Span getSpanFromRecord(Record record)

    • processRecordWithRetry

      protected void processRecordWithRetry(String from, Record record)

    • processFallback

      protected void processFallback(ComputationContextImpl context)

    • skipFailureForRecovery

      protected boolean skipFailureForRecovery()

    • getTimeoutDuration

      @Deprecated(since="2025.5", forRemoval=true) protected Duration getTimeoutDuration()
      Deprecated, for removal: This API element is subject to removal in a future version.
      since 2025.5, use getReadTimeout() instead

    • setReadTimeout

      public void setReadTimeout(Duration timeout)
      Sets tailer read duration.
      Since:
      2025.5

    • getReadTimeout

      public Duration getReadTimeout()
      Gets the tailer read duration.
      Since:
      2025.5

    • checkSourceLowWatermark

      protected void checkSourceLowWatermark()

    • checkRecordFlags

      protected void checkRecordFlags(Record record)

    • checkpointIfNecessary

      protected void checkpointIfNecessary()

    • checkpoint

      protected void checkpoint()

    • saveTimers

      protected void saveTimers()

    • saveState

      protected void saveState()

    • saveOffsets

      protected void saveOffsets()

    • sendRecords

      protected void sendRecords()

    • getLowWatermark

      public Watermark getLowWatermark()

    • setThreadName

      protected void setThreadName(String message)

    • onPartitionsRevoked

      public void onPartitionsRevoked(Collection<LogPartition> partitions)
      Specified by:
      onPartitionsRevoked in interface RebalanceListener

    • onPartitionsAssigned

      public void onPartitionsAssigned(Collection<LogPartition> partitions)
      Specified by:
      onPartitionsAssigned in interface RebalanceListener