flink checkpoint 指标的源码解析

左手的ㄟ右手 2023-01-19 03:24 94阅读 0赞

1、 CheckpointMetricsBuilder是计算checkpoint相关指标信息

@NotThreadSafe
    public class CheckpointMetricsBuilder {
        private CompletableFuture<Long> bytesProcessedDuringAlignment = new CompletableFuture<>();
        private long bytesPersistedDuringAlignment = -1L;
        private CompletableFuture<Long> alignmentDurationNanos = new CompletableFuture<>();
        private long syncDurationMillis = -1L;
        private long asyncDurationMillis = -1L;
        private long checkpointStartDelayNanos = -1L;
        private boolean unalignedCheckpoint = false;
        private long totalBytesPersisted = -1L;
    
        public CheckpointMetricsBuilder setBytesProcessedDuringAlignment(
                long bytesProcessedDuringAlignment) {
            checkState(
                    this.bytesProcessedDuringAlignment.complete(bytesProcessedDuringAlignment),
                    "bytesProcessedDuringAlignment has already been completed by someone else");
            return this;
        }
    
        public CheckpointMetricsBuilder setBytesProcessedDuringAlignment(
                CompletableFuture<Long> bytesProcessedDuringAlignment) {
            this.bytesProcessedDuringAlignment = bytesProcessedDuringAlignment;
            return this;
        }
    
        public CompletableFuture<Long> getBytesProcessedDuringAlignment() {
            return bytesProcessedDuringAlignment;
        }
    
        public CheckpointMetricsBuilder setBytesPersistedDuringAlignment(
                long bytesPersistedDuringAlignment) {
            this.bytesPersistedDuringAlignment = bytesPersistedDuringAlignment;
            return this;
        }
    
        public long getAlignmentDurationNanosOrDefault() {
            return FutureUtils.getOrDefault(alignmentDurationNanos, -1L);
        }
    
        public CheckpointMetricsBuilder setAlignmentDurationNanos(long alignmentDurationNanos) {
            checkState(
                    this.alignmentDurationNanos.complete(alignmentDurationNanos),
                    "alignmentDurationNanos has already been completed by someone else");
            return this;
        }
    
        public CheckpointMetricsBuilder setAlignmentDurationNanos(
                CompletableFuture<Long> alignmentDurationNanos) {
            checkState(
                    !this.alignmentDurationNanos.isDone(),
                    "alignmentDurationNanos has already been completed by someone else");
            this.alignmentDurationNanos = alignmentDurationNanos;
            return this;
        }
    
        public CompletableFuture<Long> getAlignmentDurationNanos() {
            return alignmentDurationNanos;
        }
    
        public CheckpointMetricsBuilder setSyncDurationMillis(long syncDurationMillis) {
            this.syncDurationMillis = syncDurationMillis;
            return this;
        }
    
        public long getSyncDurationMillis() {
            return syncDurationMillis;
        }
    
        public CheckpointMetricsBuilder setAsyncDurationMillis(long asyncDurationMillis) {
            this.asyncDurationMillis = asyncDurationMillis;
            return this;
        }
    
        public long getAsyncDurationMillis() {
            return asyncDurationMillis;
        }
    
        public CheckpointMetricsBuilder setCheckpointStartDelayNanos(long checkpointStartDelayNanos) {
            this.checkpointStartDelayNanos = checkpointStartDelayNanos;
            return this;
        }
    
        public long getCheckpointStartDelayNanos() {
            return checkpointStartDelayNanos;
        }
    
        public CheckpointMetricsBuilder setUnalignedCheckpoint(boolean unalignedCheckpoint) {
            this.unalignedCheckpoint = unalignedCheckpoint;
            return this;
        }
    
        public CheckpointMetricsBuilder setTotalBytesPersisted(long totalBytesPersisted) {
            this.totalBytesPersisted = totalBytesPersisted;
            return this;
        }
    
        public CheckpointMetrics build() {
            return new CheckpointMetrics(
                    checkStateAndGet(bytesProcessedDuringAlignment),
                    bytesPersistedDuringAlignment,
                    checkStateAndGet(alignmentDurationNanos),
                    syncDurationMillis,
                    asyncDurationMillis,
                    checkpointStartDelayNanos,
                    unalignedCheckpoint,
                    totalBytesPersisted);
        }
    
        public CheckpointMetrics buildIncomplete() {
            return new CheckpointMetrics(
                    bytesProcessedDuringAlignment.getNow(CheckpointMetrics.UNSET),
                    bytesPersistedDuringAlignment,
                    alignmentDurationNanos.getNow(CheckpointMetrics.UNSET),
                    syncDurationMillis,
                    asyncDurationMillis,
                    checkpointStartDelayNanos,
                    unalignedCheckpoint,
                    totalBytesPersisted);
        }
    }