google数据流作业成本优化

Question

我已经为大小为100 GB的522个gzip文件运行了下面的代码，在解压缩后，它将是320 GB左右的数据和数据的protobuf格式，并将输出到GCS。我使用了n1标准机器和区域作为输入，输出都很小心，工作花费了我大约17美元，这是半小时的数据，所以我真的非常需要在这里做一些成本优化。

从以下查询中获得的成本

SELECT l.value AS JobID,  ROUND(SUM(cost),3) AS JobCost 
FROM `PROJECT.gcp_billing_data.gcp_billing_export_v1_{}` bill, 
UNNEST(bill.labels) l
WHERE service.description = 'Cloud Dataflow' and l.key = 'goog-dataflow-job-id' and 
extract(date from _PARTITIONTIME) > "2020-12-31"
GROUP BY 1

完整代码

import time
import sys
import argparse
import apache_beam as beam
from apache_beam.options.pipeline_options import PipelineOptions
from apache_beam.options.pipeline_options import SetupOptions
import csv
import base64
from google.protobuf import timestamp_pb2
from google.protobuf.json_format import MessageToDict
from google.protobuf.json_format import MessageToJson
import io
import logging
from io import StringIO
from google.cloud import storage
import json
###PROTOBUF CLASS
from otherfiles import processor_pb2

class ConvertToJson(beam.DoFn):
    def process(self, message, *args, **kwargs):
        import base64
        from otherfiles import processor_pb2
        from google.protobuf.json_format import MessageToDict
        from google.protobuf.json_format import MessageToJson
        import json
        if (len(message) >= 4):
            b64ProtoData = message[2]
            totalProcessorBids = int(message[3] if message[3] and message[3] is not None else 0);
            b64ProtoData = b64ProtoData.replace('_', '/')
            b64ProtoData = b64ProtoData.replace('*', '=')
            b64ProtoData = b64ProtoData.replace('-', '+')
            finalbunary = base64.b64decode(b64ProtoData)
            log = processor_pb2.ProcessorLogProto()
            log.ParseFromString(finalbunary)
            #print(log)
            jsonObj = MessageToDict(log,preserving_proto_field_name=True)
            jsonObj["totalProcessorBids"] = totalProcessorBids
            #wjdata = json.dumps(jsonObj)
            print(jsonObj)
            return [jsonObj]
        else:
            pass


class ParseFile(beam.DoFn):
    def process(self, element, *args, **kwargs):
        import csv
        for line in csv.reader([element], quotechar='"', delimiter='\t', quoting=csv.QUOTE_ALL, skipinitialspace=True):
            #print (line)
            return [line]

def run():
    parser = argparse.ArgumentParser()
    parser.add_argument("--input", dest="input", required=False)
    parser.add_argument("--output", dest="output", required=False)
    parser.add_argument("--bucket", dest="bucket", required=True)
    parser.add_argument("--bfilename", dest="bfilename", required=True)
    app_args, pipeline_args = parser.parse_known_args()
    #pipeline_args.extend(['--runner=DirectRunner'])
    pipeline_options = PipelineOptions(pipeline_args)
    pipeline_options.view_as(SetupOptions).save_main_session = True
    bucket_input=app_args.bucket
    bfilename=app_args.bfilename

    storage_client = storage.Client()
    bucket = storage_client.get_bucket(bucket_input)
    blob = bucket.blob(bfilename)
    blob = blob.download_as_string()
    blob = blob.decode('utf-8')
    blob = StringIO(blob)
    pqueue = []
    names = csv.reader(blob)
    for i,filename in enumerate(names):
        if filename and filename[0]:
            pqueue.append(filename[0])

    with beam.Pipeline(options=pipeline_options) as p:
        if(len(pqueue)>0):        
            input_list=app_args.input
            output_list=app_args.output
            events = ( p | "create PCol from list" >> beam.Create(pqueue)
                     | "read files" >> beam.io.textio.ReadAllFromText()
                     | "Transform" >> beam.ParDo(ParseFile())
                     | "Convert To JSON" >> beam.ParDo(ConvertToJson())
                     | "Write to BQ" >> beam.io.WriteToBigQuery(
        table='TABLE',
        dataset='DATASET',
        project='PROJECT',
        schema="dataevent:STRING",
        create_disposition=beam.io.BigQueryDisposition.CREATE_IF_NEEDED,
        write_disposition=beam.io.BigQueryDisposition.WRITE_APPEND,
        insert_retry_strategy=RetryStrategy.RETRY_ON_TRANSIENT_ERROR,
        custom_gcs_temp_location='gs://BUCKET/gcs-temp-to-bq/',
        method='FILE_LOADS'))

        ##bigquery failed rows  NOT WORKING so commented
        #(events[beam.io.gcp.bigquery.BigQueryWriteFn.FAILED_ROWS] | "Bad lines" >> beam.io.textio.WriteToText("error_log.txt"))
        ##WRITING TO GCS            
        #printFileConetent | "Write TExt" >> beam.io.WriteToText(output_list+"file_",file_name_suffix=".json",num_shards=1, append_trailing_newlines = True)


if __name__ == '__main__':
    logging.getLogger().setLevel(logging.INFO)
    run()

这项工作花了大约49分钟。

我尝试过：( 1)对于avro，生成的模式需要在JSON中作为proto文件，并在下面的代码中尝试将字典转换为avro msg，但由于字典的大小更大，这需要时间。schema_separated=是一个avro模式，运行良好

      with beam.Pipeline(options=pipeline_options) as p:
          if(len(pqueue)>0):        
        input_list=app_args.input
        output_list=app_args.output
        p1 = p | "create PCol from list" >> beam.Create(pqueue)
        readListofFiles=p1 | "read files" >> beam.io.textio.ReadAllFromText()
        parsingProtoFile = readListofFiles | "Transform" >> beam.ParDo(ParseFile())
        printFileConetent = parsingProtoFile | "Convert To JSON" >> beam.ParDo(ConvertToJson())
      
        compressIdc=True
        use_fastavro=True 
        printFileConetent | 'write_fastavro' >> WriteToAvro(
        output_list+"file_",
        # '/tmp/dataflow/{}/{}'.format(
        #     'demo', 'output'),
        # parse_schema(json.loads(SCHEMA_STRING)),
        parse_schema(schema_separated),
        use_fastavro=use_fastavro,
        file_name_suffix='.avro',
        codec=('deflate' if compressIdc else 'null'),
    )

1. 在主要代码中，我尝试将JSON记录作为字符串插入到bigquery表中，这样我就可以在bigquery中使用JSON函数来提取数据，这也不是很好，并且得到了下面的错误。 消息：“读取数据时出错，错误消息: JSON表遇到太多错误，放弃。行: 1；错误: 1。请查看errors[]集合以获得更多详细信息。”原因：“运行时无效”写入BQ/BigQueryBatchFileLoads/WaitForDestinationLoadJobs‘
2. 尝试将上述JSON字典插入到bigquery，为表提供JSON模式，并且运行良好

现在的挑战是，在将proto反序列化为JSON之后的大小将增加一倍，成本将以数据流的形式通过处理数据的数量来计算。

我正在努力和阅读大量的工作，如果它有效，那么我可以使它稳定的生产。

样本JSON记录。

{'timestamp': '1609286400', 'bidResponseId': '5febc300000115cd054b9fd6840a5af1', 'aggregatorId': '1', 'userId': '7567d74e-2e43-45f4-a42a-8224798bb0dd', 'uniqueResponseId': '', 'adserverId': '1002418', 'dataVersion': '1609285802', 'geoInfo': {'country': '101', 'region': '122', 'city': '11605', 'timezone': '420'}, 'clientInfo': {'os': '4', 'browser': '1', 'remoteIp': '36.70.64.0'}, 'adRequestInfo': {'requestingPage': 'com.opera.mini.native', 'siteId': '557243954', 'foldPosition': '2', 'adSlotId': '1', 'isTest': False, 'opType': 'TYPE_LEARNING', 'mediaType': 'BANNER'}, 'userSegments': [{'id': '2029660', 'weight': -1.0, 'recency': '1052208'}, {'id': '2034588', 'weight': -1.0, 'recency': '-18101'}, {'id': '2029658', 'weight': -1.0, 'recency': '744251'}, {'id': '2031067', 'weight': -1.0, 'recency': '1162398'}, {'id': '2029659', 'weight': -1.0, 'recency': '862833'}, {'id': '2033498', 'weight': -1.0, 'recency': '802749'}, {'id': '2016729', 'weight': -1.0, 'recency': '1620540'}, {'id': '2034584', 'weight': -1.0, 'recency': '111571'}, {'id': '2028182', 'weight': -1.0, 'recency': '744251'}, {'id': '2016726', 'weight': -1.0, 'recency': '1620540'}, {'id': '2028183', 'weight': -1.0, 'recency': '744251'}, {'id': '2028178', 'weight': -1.0, 'recency': '862833'}, {'id': '2016722', 'weight': -1.0, 'recency': '1675814'}, {'id': '2029587', 'weight': -1.0, 'recency': '38160'}, {'id': '2028177', 'weight': -1.0, 'recency': '862833'}, {'id': '2016719', 'weight': -1.0, 'recency': '1675814'}, {'id': '2027404', 'weight': -1.0, 'recency': '139031'}, {'id': '2028172', 'weight': -1.0, 'recency': '1052208'}, {'id': '2028173', 'weight': -1.0, 'recency': '1052208'}, {'id': '2034058', 'weight': -1.0, 'recency': '1191459'}, {'id': '2016712', 'weight': -1.0, 'recency': '1809526'}, {'id': '2030025', 'weight': -1.0, 'recency': '1162401'}, {'id': '2015235', 'weight': -1.0, 'recency': '139031'}, {'id': '2027712', 'weight': -1.0, 'recency': '139031'}, {'id': '2032447', 'weight': -1.0, 'recency': '7313670'}, {'id': '2034815', 'weight': -1.0, 'recency': '586825'}, {'id': '2034811', 'weight': -1.0, 'recency': '659366'}, {'id': '2030004', 'weight': -1.0, 'recency': '139031'}, {'id': '2027316', 'weight': -1.0, 'recency': '1620540'}, {'id': '2033141', 'weight': -1.0, 'recency': '7313670'}, {'id': '2034736', 'weight': -1.0, 'recency': '308252'}, {'id': '2029804', 'weight': -1.0, 'recency': '307938'}, {'id': '2030188', 'weight': -1.0, 'recency': '3591519'}, {'id': '2033449', 'weight': -1.0, 'recency': '1620540'}, {'id': '2029672', 'weight': -1.0, 'recency': '1441083'}, {'id': '2029664', 'weight': -1.0, 'recency': '636630'}], 'perfInfo': {'timeTotal': '2171', 'timeBidInitialize': '0', 'timeProcessDatastore': '0', 'timeGetCandidates': '0', 'timeAdFiltering': '0', 'timeEcpmComputation': '0', 'timeBidComputation': '0', 'timeAdSelection': '0', 'timeBidSubmit': '0', 'timeTFQuery': '0', 'timeVWQuery': '8'}, 'learningPercent': 0.10000000149011612, 'pageLanguageId': '0', 'sspUserId': 'CAESECHFlNeuUm16IYThguoQ8ck_1', 'minEcpm': 0.12999999523162842, 'adSpotId': '1', 'creativeSizes': [{'width': '7', 'height': '7'}], 'pageTypeId': '0', 'numSlots': '0', 'eligibleLIs': [{'type': 'TYPE_OPTIMIZED', 'liIds': [{'id': 44005, 'reason': '12', 'creative_id': 121574, 'bid_amount': 8.403361132251052e-08}, {'id': 46938, 'reason': '12', 'creative_id': 124916, 'bid_amount': 8.403361132251052e-06}, {'id': 54450, 'reason': '12', 'creative_id': 124916, 'bid_amount': 2.0117618771650174e-05}, {'id': 54450, 'reason': '12', 'creative_id': 135726, 'bid_amount': 2.4237295484638312e-05}]}, {'type': 'TYPE_LEARNING'}], 'bidType': 4, 'isSecureRequest': True, 'sourceType': 3, 'deviceBrand': 82, 'deviceModel': 1, 'sellerNetworkId': 12814, 'interstitialRequest': False, 'nativeAdRequest': True, 'native': {'mainImg': [{'w': 0, 'h': 0, 'wmin': 1200, 'hmin': 627}, {'w': 0, 'h': 0, 'wmin': 1200, 'hmin': 627}, {'w': 0, 'h': 0, 'wmin': 1200, 'hmin': 627}, {'w': 0, 'h': 0, 'wmin': 1200, 'hmin': 627}], 'iconImg': [{'w': 0, 'h': 0, 'wmin': 0, 'hmin': 0}, {'w': 0, 'h': 0, 'wmin': 100, 'hmin': 100}, {'w': 0, 'h': 0, 'wmin': 0, 'hmin': 0}, {'w': 0, 'h': 0, 'wmin': 100, 'hmin': 100}], 'logoImg': [{'w': 0, 'h': 0, 'wmin': 100, 'hmin': 100}, {'w': 0, 'h': 0, 'wmin': 0, 'hmin': 0}, {'w': 0, 'h': 0, 'wmin': 100, 'hmin': 100}, {'w': 0, 'h': 0, 'wmin': 0, 'hmin': 0}]}, 'throttleWeight': 1, 'isSegmentReceived': False, 'viewability': 46, 'bannerAdRequest': False, 'videoAdRequest': False, 'mraidAdRequest': True, 'jsonModelCallCount': 0, 'totalProcessorBids': 1}

有人能帮我吗？

PFA截图也可供参考

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Answer 1

这里我的建议是使用Java来执行转换。

在Java中，您可以像这样将Protobuf转换为Avro：用apache beam在地板上编写原型对象

一旦完成了这些操作，就可以使用AvroIO将数据写入文件。

Java比Python具有更高的性能，将为您节省计算资源。由于这项工作非常简单，并且不需要任何特殊的Python库，所以我强烈建议您尝试使用Java。

Answer 2

只是想让你注意到"FlexRS“，如果你还没有看过这个。这使用了可抢占的虚拟机(VM)实例，这样就可以降低成本。