Predicting impact of changes in application on SLAs: ETL application performance model

Transcription

1 Predicting impact of changes in application on SLAs: ETL application performance model Dr. Abhijit S. Ranjekar Infosys Abstract Service Level Agreements (SLAs) are an integral part of application performance. Service providers are bound by them to build and deliver applications-services conforming to specified SLAs. Violations in SLAs are associated with stringent penalties in the case of managed service providers. When there are changes to applications deployed in production, it is a challenging task to examine the impact of change on the SLAs. The task is even more challenging in case of batch or ETL kinds of applications where the transaction doesn t follow the online-synchronous flow model. This paper illustrates the methodology to build mathematical models and to judge the impact of application change on SLAs. The model also helps architects to design the deployment configuration in order to meet the SLAs. 1. Introduction Software applications are developed based on business requirements and thus, performance of these applications needs to be tailored to satisfy end use expectations. Managed service providers design develop deploy applications to fulfill the requirements of their clients. Apart from functional requirements that serve business purpose, these applications may also have to satisfy multiple service level agreements (SLAs). SLAs are imposed to provide (a) a better experience to end users, (b) a competitive edge to the given application and (c) the ability to meet timelines associated with expectations and other compliance demands. SLA management has significant weight in application development and change management. Applications deployed in production which are performing within SLAs often need to undergo changes as business or functional requirements change. Minor, cosmetic changes typically do not affect the SLAs. In case of major changes, architects face a big challenge in ensuring the SLAs for proposed changes. How much will code change affect the measured response time? How to change the design deployment hardware so that the SLAs are met? Described in this paper is the methodology illustrated with actual examples to create a model for the system application and how it can address these questions.

2 2. ETL application - SLAs The managed service provider is offering services to process daily files - data coming from multiple agents - and to store it in data warehouse. The agents who submit these files need to be notified about the receipt of their files and that the file has passed basic data validations. When the file is not received or cannot be validated, agents need to submit the file again. Data in these files is then processed to remove all personal information, extract summarized information and conduct analytics and classification. All the information and the reports extracted from these files needs to be stored in data warehouse. This information is further used for planning, commissioning, audit, benchmarking, research, performance improvement and governance. The objective of the overall service is to understand public trends, analyze effectiveness of solutions and to plan and allocate appropriate resources to meet demands. The base data for this comes from agents who implement the services. The application under consideration processes this data and makes it available for the objectives as above. The application is a typical ETL application (Extract Transform Load) so the service provider has designed and developed ETL application using relevant technologies. The process for churning the data-files involves the following major stages - (i) Catalogue the file (ii) Validate the format-content (ii) Sequence for processing and (iv) Stage data into tables. Agents post data-files everyday so the application processing is a recurring activity. SLAs are based on completion of each stage and are derived taking into account time needed to process each submitted file. Completion times are measured from the time of submission of the file. (i) Receipt of file notification to agent must be done in no more than 1 hour after receipt (ii) Catalogue stage to complete within 4 hours (so that user is informed about the correctness and does not need to re-submit) and (iii) Complete process of staging data to be completed in 12 hours. Note that since agents can submit the files any time in a 24 hour day, stage completion times are to be measured from the time of submission. To derive the SLA compliance, the completion times need to be computed for each and every file being received. This requirement is quite challenging given the nature of process flow. SLAs are negotiated by the service provider to the extent that completion times need to be complied with for 93% of total files. For example, 93% of files received from the agents need to complete the cataloguing stage within 4 hrs. The process flow is briefly elaborated in diagram below:

3 Users submit a batch of files each file within the batch undergoes 3 stages sequentially file by file. Note that until the previous file completes validation phase, the next file cannot be catalogued. So the catalogue time is a complex entity which increases within a batch as well as across the batches. After a batch is done with validation the files in that batch are picked for the last phase of staging. The design involves deployment of multiple nodes which randomly pick up a file from the queue which is stacked by files sent by agents. Once a file is picked by a node, the user who has sent that file is chosen and all the files sent by that user are selected for processing. After this user s files are completed, the node is free to pick the next file in queue. This implies that the files submitted by this user later are also churned early while the files submitted early by another user will be started later. The business logic for processing files thus introduced complexities in actual response times. The SLA value for cataloguing is thus subject to actual execution of the process. The diagram below briefs the execution flow.

4 In case of issues with data in a file in one of the batches during churning; that user would be suspended for further processing. Proper notifications need to be sent back well in time and after appropriate actions, the batches for that user would resume for processing. Overall, there are sunny day paths where the files would simply go through, rainy day paths where files would be pushed through with necessary corrections and stormy day paths where files would be suspended for the day and these would be out of the SLA calculations. 3. Change in application: Impact on SLA The initial design specified that the application would perform within SLAs. This means 93% of all the files received would be catalogued within four hours of their individual receipt timestamp (in production, cataloguing for 93% of files was actually finishing within one hour). Business later decided to introduce substantial changes in the validation phase. While initially, the number of validations on file structure and content were less than 10, a new requirement resulted in more than 50 checks in the validation stage. The impact was anticipated to be more time in validation phase and was to be mitigated by increasing number of nodes which started processing batches. This was the most natural option since each batch will take more time, starting more batches at a time would ensure that all files are still churned in the stipulated time. Architects wanted to estimate the impact of increased validations on the overall SLA timings. Given the complexity of the process and the time measurements estimation was not straightforward. A mathematical model of the whole process was built to judge the impact of changes based on actual execution. In creating a model for this system, the following constituents play crucial role:

5 1. Variables a. What are all the entities that change in the system/process? b. Extent of variation range of typical values drivers for variation? 2. Dependence a. What are the inter-relations between the changing entities? b. Correlation, inter-conversion factors cause-effect relations 3. Objective parameters a. What are the parameters for which the model is expected to predict outcomes? b. What inputs relate to which outcomes driver variables? The following sections further describe these constituents and illustrate the methodology for creating our model Model constituents: Variables A thorough study of the inputs into the process including all the parameters that vary in the process should be conducted to arrive at the variables for the model. For the ETL application under consideration, the process initiates with batches of files from users. Each file contains a number of records which are eventually processed in the application. Variables: micro to macro (i) Number of records in each file - batch

6 (ii) Number of files in a batch (iii) Number of files - batches in a day - month Subsequent graphs show variation in each variable: the study has been carried over two time periods across a milestone these periods are referred in the charts as Pre and Post. This classification in time is just to validate that there is no significant change in variables across the milestone. Number of records in each file: This is a major factor that affects time taken to process a file. Based on overall variation, record counts in individual files are classified in bands of interval length 300. The chart below has bands of record counts on the x-axis and the y-axis plots the number of files with record counts in the given band. The chart essentially plots the frequency of files with respective record counts For example number of files with record counts around is between etc. Inputs given to the model need to have file sizes in accordance with the distribution below. As an illustration based on the chart below, the majority of files should have record counts less than 10000, 18% of files should have record counts in the band of etc. The files to be used for the models will each have different number of records and the distribution of record counts in files needs to be as below. Files from end users come into system as batches this has 2 implications on variables in the model - (i) number of files in a batch and (ii) total number of records in a batch (from files in that batch). The number of files in a batch affects the time taken for subsequent files in that batch. The chart below has number of files in a batch on the x-axis and y-axis has frequency of batches having that file count. As an illustration - 86% of batches come as single files, while 3% of batches have 3 files in them etc.

7 Aggregate number of records in a batch will affect the time taken to initiate processing for the next batch in queue. Hence, aggregate record count indirectly adds delay into subsequent batch file times. While the number of records in a single file follows the distribution given in Figure 1, the files need to be batched in such a way that aggregate counts in batch follow the distribution as given in chart below. As an illustration, the average record counts from the number of files in a batch needs to be around ,653 13,556 13,637 26,619 26,625 47,643 48,218 48,220 48,221 48,355 48,475 48,587 48,678 48,772 48,773 48,866 49,058 49,230 49,375 49,484 49,494 49,495 49,664 49,884 50,117 50,296 50,404 50,406 50,407 50,514 50,599 50,669 50,741 50,808 50,812 50,813 50,814 50,815 50,816 50,817 50,818 50,834 50,835 50,836 50,837 50,838 50,839 50,840 50,841 50,842 50,843 50,844 50,845 50,846 50,847 50,848 50,849 50,850 50,851 50,852 50,853 50,854 50,855 50,856 50,857 50,858 50,859 50,860 50,861 50,862 50,863 50,864 50,865 50,866 50,867 50,868 50,869 50,870 50,871 50,872 50,873 50,874 50,875 50,876 50,877 50,878 50,879 50,880 50,881 50,882 50,883 50,884 50,885 50,886 50,887 50,888 50,889 50,890 50,891 50,892 50,893 50,894 50,895 50,896 50,897 50,898 50,899 50,900 50,901 50,902 50,903 50,904 50,905 50,906 50,907 50,908 50,909 50,910 50,911 50,912 50,913 50,914 50,915 50,916 50,917 50,918 50,919 50,920 50,921 50,922 50,923 50,924 50,925 50,926 50,927 50,928 50,929 50,930 50,931 50,932 50,933 50,934 50,935 50,936 50,937 50,938 50,939 50,940 50,941 50,942 50,943 50,944 50,945 50,946 50,947 50,948 50,949 50,950 50,951 50,952 50,953 50,954 50,955 50,956 50,957 50,958 50,959 50,960 50,961 50,962 50,963 50,964 50,965 50,966 50,967 50,968 50,969 50,970 50,971 50,972 50,973 50,974 50,975 50,976 50,977 50,978 50,979 50,980 50,981 50,982 50,983 50,984 50,985 50,986 50,987 50,988 50,989 50,990 50,991 50,992 50,993 50,994 50,995 50,996 50,997 50,998 50,999 51,000 51,001 51,002 51,003 51,004 51,005 51,006 51,007 51,008 51,009 51,010 51,011 51,012 51,013 51,014 51,015 51,016 51,017 51,018 51,019 51,020 51,021 51,022 51,023 51,024 51,025 51,026 51,027 51,028 51,029 51,030 51,031 51,032 51,033 51,034 51,035 51,036 51,037 51,038 51,039 51,040 51,041 51,042 51,043 51,044 51,045 51,046 51,047 51,048 51,049 51,050 51,051 51,052 51,053 51,054 51,055 51,056 51,057 51,058 51,059 51,060 51,061 51,062 51,063 51,064 51,065 51,066 51,067 51,068 51,069 51,070 51,071 51,072 51,073 51,074 51,075 51,076 51,077 51,078 51,079 51,080 51,081 51,082 51,083 51,084 51,085 51,086 51,087 51,088 51,089 51,090 51,091 51,092 51,093 51,094 51,095 51,096 51,097 51,098 51,099 51,100 51,101 51,102 51,103 51,104 51,105 51,106 51,107 51,108 51,109 51,110 51,111 51,112 51,113 51,114 51,115 51,116 51,117 51,118 51,119 51,120 51,121 51,122 51,123 51,124 51,125 51,126 51,127 51,128 51,129 51,130 51,131 51,132 51,133 51,134 51,135 51,136 51,137 51,138 51,139 51,140 51,141 51,142 51,143 51,144 51,145 51,146 51,147 51,148 51,149 51,150 51,151 51,152 51,153 51,154 51,155 51,156 51,157 51,158 51,159 51,160 51,161 51,162 51,163 51,164 51,165 51,166 51,167 51,168 51,169 51,170 51,171 51,172 51,173 51,174 51,175 51,176 51,177 51,178 51,179 51,180 51,181 51,182 51,183 51,184 51,185 51,186 51,187 51,188 51,189 51,190 51,191 51,192 51,193 51,194 51,195 51,196 51,197 51,198 51,199 51,200 51,201 51,202 51,203 51,204 51,205 51,206 51,207 51,208 51,209 51,210 51,211 51,212 51,213 51,214 51,215 51,216 51,217 51,218 51,219 51,220 51,221 51,222 51,223 51,224 51,225 51,226 51,227 51,228 51,229 51,230 51,231 51,232 51,233 51,234 51,235 51,236 51,237 51,238 51,239 51,240 51,241 51,242 51,243 51,244 51,245 51,246 51,247 51,248 51,249 51,250 51,251 51,252 51,253 51,254 51,255 51,256 51,257 51,258 51,259 51,260 51,261 51,262 51,263 51,264 51,265 51,266 51,267 51,268 51,269 51,270 51,271 51,272 51,273 51,274 51,275 51,276 51,277 51,278 51,279 51,280 51,281 51,282 51,283 51,284 51,285 51,286 51,287 51,288 51,289 51,290 51,291 51,292 51,293 51,294 51,295 51,296 51,297 51,298 51,299 51,300 51,301 51,302 51,303 51,304 51,305 51,306 51,307 51,308 51,309 51,310 51,311 51,312 51,313 51,314 51,315 51,316 51,317 51,318 51,319 51,320 51,321 51,322 51,323 51,324 51,325 51,326 51,334 51,335 51,336 51,337 51,338 51,339 51,340 51,341 51,342 51,343 51,344 51,345 51,346 51,347 51,348 51,349 51,350 51,351 51,352 51,353 51,354 51,355 51,356 51,357 51,358 51,359 51,360 51,361 51,362 51,363 51,364 51,365 51,366 51,367 51,368 51,369 51,370 51,371 51,372 51,373 51,374 51,375 51,376 51,377 51,378 51,379 51,380 51,381 51,382 51,383 51,384 51,385 51,386 51,387 51,388 51,389 51,390 51,391 51,392 51,393 51,394 51,395 51,396 51,397 51,398 51,399 51,400 51,401 51,402 51,403 51,404 51,405 51,406 51,407 51,408 51,409 51,410 51,411 51,412 51,413 51,414 51,415 51,416 51,417 51,418 51,419 51,420 51,421 51,422 51,423 51,424 51,425 51,426 51,427 51,428 51,429 51,430 51,431 51,432 51,433 51,434 51,435 51,436 51,437 51,438 51,439 51,440 51,441 51,442 51,443 51,444 51,445 51,446 51,447 51,448 51,449 51,450 51,451 51,452 51,453 51,454 51,474 51,475 51,476 51,477 51,478 51,479 51,480 51,481 51,482 51,483 51,484 51,485 51,486 51,487 51,488 51,489 51,490 51,491 51,492 51,493 51,494 51,495 51,496 51,497 51,498 51,499 51,500 51,501 51,502 51,503 51,504 51,505 51,506 51,507 51,508 51,509 51,510 51,511 51,512 51,513 51,514 51,515 51,516 51,517 51,518 51,519 51,520 51,521 51,522 51,523 51,524 51,525 51,526 51,527 51,528 51,529 51,530 51,531 51,532 51,533 51,534 51,535 51,536 51,537 51,538 51,539 51,540 51,541 51,542 51,543 51,544 51,545 51,546 51,547 51,548 51,549 51,550 51,551 51,552 51,553 51,554 51,555 51,556 51,557 51,558 51,559 51,560 51,561 51,562 51,563 51,564 51,565 51,566 51,567 51,568 51,569 51,570 51,571 51,572 51,573 51,574 51,575 51,576 51,577 51,578 51,579 51,580 51,581 51,582 51,583 51,584 51,585 51,586 51,587 51,588 51,589 51,590 51,591 51,592 51,593 51,594 51,595 51,596 51,597 51,598 51,599 51,600 51,601 51,602 51,603 51,604 51,605 51,606 51,607 51,608 51,609 51,610 51,611 51,612 51,613 51,614 51,615 51,616 51,617 51,618 51,619 51,620 51,621 51,622 51,623 51,624 51,625 51,626 51,627 51,628 51,629 51,630 51,631 51,632 51,633 51,634 51,635 51,636 51,637 51,638 51,639 51,640 51,641 51,642 51,643 51,644 51,645 51,646 51,647 51,648 51,649 51,650 51,651 51,652 51,653 51,654 51,655 51,656 51,657 51,658 51,659 51,660 51,661 51,662 51,663 51,664 51,665 51,666 51,667 51,668 51,669 51,670 51,671 51,672 51,673 51,674 51,675 51,676 51,677 51,678 51,679 51,680 51,681 51,682 51,683 51,684 51,685 51,686 51,687 51,688 51,689 51,690 51,691 51,692 51,693 51,694 51,695 51,696 51,697 51,698 51,699 51,700 51,701 51,702 51,703 51,704 51,705 51,706 51,707 51,708 51,709 51,710 51,711 51,712 51,713 51,714 51,715 51,716 51,717 51,718 51,719 51,720 51,721 51,722 51,723 51,724 51,725 51,726 51,727 51,728 51,729 51,730 51,731 51,732 51,733 51,734 51,735 51,736 51,737 51,738 51,739 51,740 51,741 51,742 51,743 51,744 51,745 51,746 51,747 51,748 51,749 51,750 51,751 51,752 51,753 51,754 51,755 51,756 51,757 51,758 51,759 51,760 51,761 51,762 51,763 51,764 51,765 51,766 51,767 51,768 51,769 51,770 51,771 51,772 51,773 51,774 51,775 51,776 51,777 51,778 51,779 51,780 51,781 51,782 51,783 51,784 51,785 51,786 51,787 51,788 51,789 51,790 51,791 51,792 51,793 51,794 51,795 51,796 51,797 51,798 51,799 51,800 51,801 51,802 51,803 51,804 51,805 51,806 51,807 51,808 51,809 51,810 51,811 51,812 51,813 51,814 51,815 51,816 51,817 51,818 51,819 51,820 51,821 51,822 51,823 51,824 51,825 51,826 51,827 51,828 51,829 51,830 51,831 51,832 51,833 51,834 51,835 51,836 51,837 51,838 51,839 51,840 51,841 51,842 51,843 51,844 51,845 51,846 51,847 51,848 51,849 51,850 51,851 51,852 51,853 51,854 51,855 51,856 51,857 51,858 51,859 51,860 51,861 51,862 51,863 51,864 51,865 51,866 51,867 51,868 51,869 51,870 51,871 51,872 51,873 51,874 51,875 51,876 51,877 51,878 51,879 51,880 51,881 51,882 51,883 51,884 51,885 51,886 51,887 51,888 51,889 51,890 51,891 51,892 51,893 51,894 51,895 51,896 51,897 51,898 51,899 51,914 51,915 51,916 51,917 51,918 51,919 51,920 51,921 51,922 51,923 51,924 51,925 51,926 51,927 51,928 51,929 51,930 51,931 51,932 51,933 51,934 51,935 51,936 51,937 51,938 51,939 51,940 51,941 51,942 51,943 51,944 51,945 51,946 51,947 51,948 51,949 51,950 51,951 51,952 51,953 51,954 51,955 51,956 51,957 51,958 51,959 51,960 51,961 51,962 51,963 51,964 51,965 51,966 51,967 51,968 51,969 51,970 51,971 51,972 51,973 51,974 51,976 51,977 51,978 51,979 51,980 51,981 51,982 51,983 51,984 51,985 51,986 51,987 51,988 51,989 51,990 51,991 51,992 51,993 51,994 51,995 51,996 51,997 51,998 51,999 52,000 52,001 52,002 52,003 52,004 52,005 52,006 52,007 52,008 52,009 52,010 52,011 52,012 52,013 52,014 52,015 52,016 52,017 52,018 52,019 52,020 52,021 52,022 52,023 52,024 52,025 52,026 52,027 52,028 52,029 52,030 52,031 52,032 52,033 52,034 52,035 52,036 52,037 52,038 52,039 52,040 52,041 52,042 52,043 52,044 52,045 52,046 52,047 52,048 52,049 52,050 52,051 52,052 52,053 52,054 52,055 52,056 52,057 52,058 52,059 52,060 52,061 52,062 52,063 52,064 52,065 52,066 52,067 52,068 52,069 52,070 52,071 52,072 52,073 52,074 52,075 52,076 52,077 52,078 52,079 52,080 52,081 52,082 52,083 52,084 52,085 52,086 52,087 52,088 52,089 52,090 52,091 52,092 52,093 52,094 52,095 52,096 52,097 52,098 52,099 52,100 52,101 52,102 52,103 52,104 52,105 52,106 52,107 52,108 52,109 52,110 52,111 52,112 52,113 52,114 52,115 52,116 52,117 52,118 52,119 52,120 52,121 52,122 52,123 52,124 52,125 52,126 52,127 52,128 52,129 52,130 52,131 52,132 52,133 52,134 52,135 52,136 52,137 52,138 52,139 52,140 52,141 52,142 52,143 52,144 52,145 52,146 52,147 52,148 52,149 52,150 52,151 52,152 52,153 52,154 52,155 52,156 52,157 52,158 52,159 52,160 52,161 52,162 52,163 52,164 52,165 52,166 52,167 52,168 52,169 52,170 52,171 52,172 52,173 52,174 52,175 52,176 52,177 52,178 52,179 52,180 52,181 52,182 52,183 52,184 52,185 52,186 52,187 52,188 52,189 52,190 52,191 52,192 52,193 52,194 52,195 52,196 52,197 52,198 52,199 52,200 52,201 52,202 52,203 52,204 52,205 52,206 52,207 52,208 52,209 52,210 52,211 52,212 52,213 52,214 52,215 52,216 52,217 52,218 52,219 52,220 52,221 52,222 52,223 52,224 52,225 52,226 52,227 52,228 52,229 52,230 52,231 52,232 52,233 52,234 52,235 52,236 52,237 52,238 52,239 52,240 52,241 52,242 52,243 52,244 52,245 52,246 52,247 52,248 52,249 52,250 52,251 52,252 52,253 52,254 52,255 52,256 52,257 52,258 52,259 52,260 52,261 52,262 52,263 52,264 52,265 52,266 52,267 52,268 52,269 52,270 52,271 52,272 52,273 52,274 52,275 52,276 52,277 52,278 52,279 52,280 52,281 52,282 52,283 52,284 52,285 52,286 52,287 52,288 52,289 52,290 52,291 52,292 52,293 52,294 52,295 52,296 52,297 52,298 52,299 52,300 52,301 52,302 52,303 52,304 52,305 52,306 52,307 52,308 52,309 52,310 52,311 52,312 52,313 52,314 52,315 52,316 52,317 52,318 52,319 52,320 52,321 52,322 52,323 52,324 52,325 52,326 52,327 52,328 52,329 52,330 52,331 52,332 52,333 52,334 52,335 52,336 52,337 52,338 52,339 52,340 52,341 52,342 52,343 52,344 52,345 52,346 52,347 52,348 52,349 52,350 52,351 52,352 52,353 52,354 52,355 52,356 52,357 52,358 52,359 52,360 52,361 52,362 52,363 52,364 52,365 52,366 52,367 52,368 52,369 52,370 52,371 52,372 52,373 52,374 52,375 52,376 52,377 52,378 52,379 52,380 52,381 52,382 52,383 52,384 52,385 52,386 52,387 52,388 52,389 52,390 52,391 52,392 52,393 52,394 52,395 52,396 52,397 52,398 52,399 52,400 52,401 52,402 52,403 52,404 52,405 52,406 52,407 52,408 52,409 52,410 52,411 52,412 52,413 52,414 52,415 52,416 52,417 52,418 52,419 52,420 52,421 52,422 52,423 52,424 52,425 52,426 52,427 52,428 52,429 52,430 52,431 52,432 52,433 52,434 52,435 52,436 52,437 52,438 52,439 52,440 52,441 52,442 52,443 52,444 52,445 52,446 52,447 52,448 52,449 52,450 52,451 52,452 52,453 52,454 52,455 52,456 52,457 52,458 52,459 52,460 52,461 52,462 52,463 52,464 52,465 52,466 52,467 52,468 52,469 52,470 52,471 52,472 52,473 52,474 52,475 52,476 52,477 52,478 52,479 52,480 52,481 52,482 52,483 52,484 52,485 52,486 52,487 52,488 52,489 52,490 52,491 52,492 52,493 52,494 52,495 52,496 52,497 52,498 52,499 52,500 52,501 52,502 52,503 52,504 52,505 52,506 52,507 52,508 52,509 52,510 52,511 52,512 52,513 52,514 52,515 52,516 52,517 52,518 52,519 52,520 52,521 52,522 52,523 52,524 52,525 52,526 52,527 52,528 52,529 52,530 52,531 52,532 52,533 52,534 52,535 52,536 52,537 52,538 52,539 52,540 52,541 52,542 52,543 52,544 52,545 52,546 52,547 52,548 52,549 52,550 52,551 52,552 52,553 52,554 52,555 52,556 52,557 52,558 52,559 52,560 52,561 52,562 52,563 52,564 52,565 52,566 52,567 52,568 52,569 52,570 52,571 52,572 52,573 52,574 52,575 52,576 52,577 52,578 52,579 52,580 52,581 52,582 52,583 52,584 52,585 52,586 52,587 52,588 52,589 52,590 52,591 52,592 52,593 52,594 52,595 52,596 52,597 52,598 52,599 52,600 52,601 52,602 52,603 52,604 52,605 52,606 52,607 52,608 52,609 52,610 52,611 52,612 52,613 52,614 52,615 52,616 52,617 52,618 52,619 52,620 52,621 52,622 52,623 52,624 52,625 52,626 52,627 52,628 52,629 52,630 52,631 52,632 52,633 52,634 52,635 52,636 52,637 52,638 52,639 52,640 52,641 52,642 52,643 52,644 52,645 52,646 52,647 52,648 52,649 52,650 52,651 52,652 52,653 52,654 52,655 52,656 52,657 52,658 52,659 52,660 52,661 52,662 52,663 52,664 52,665 52,666 52,667 52,668 52,669 52,670 52,671 52,672 52,673 52,674 52,675 52,676 52,677 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54,711 54,712 54,713 54,714 54,715 54,716 54,717 54,718 54,719 54,720 54,721 54,722 54,723 54,724 54,725 54,726 54,727 54,728 54,729 54,730 54,731 54,732 54,733 54,734 54,735 54,736 54,737 54,738 54,739 54,740 54,741 54,742 54,743 54,744 54,745 54,746 54,747 54,748 54,749 54,750 54,751 54,752 54,753 54,754 54,755 54,756 54,757 54,758 54,759 54,760 54,761 54,762 54,763 54,764 54,765 54,766 54,767 54,768 54,769 54,770 54,771 54,772 54,773 54,774 54,775 54,776 54,777 54,778 54,779 54,780 54,781 54,782 54,783 54,784 54,785 54,786 54,787 54,788 54,789 54,790 54,791 54,792 54,793 54,794 54,795 54,796 54,797 54,798 54,799 54,800 54,801 54,802 54,803 54,804 54,805 54,806 54,807 54,808 54,809 54,810 54,811 54,812 54,813 54,814 54,815 54,816 54,817 54,818 54,819 54,820 54,821 54,822 54,823 54,824 54,825 54,826 54,827 54,828 54,829 54,830 54,831 54,832 54,833 54,834 54,835 54,836 54,837 54,838 54,839 54,840 54,841 54,842 54,843 54,844 54,845 54,846 54,847 54,848 54,849 54,850 54,851 54,852 54,853 54,854 54,855 54,856 54,857 54,858 54,859 54,860 54,861 54,862 54,863 54,864 54,865 54,866 54,867 54,868 54,869 54,870 54,871 54,872 54,873 54,874 54,875 54,876 54,877 54,878 54,879 54,880 54,881 54,882 54,883 54,884 54,885 54,886 54,887 54,888 54,889 54,890 54,891 54,892 54,893 54,894 54,895 54,896 54,897 54,898 54,899 54,900 54,901 54,902 54,903 54,904 54,905 54,906 54,907 54,908 54,909 54,910 54,911 54,912 54,913 54,914 54,915 54,916 54,917 54,918 54,919 54,920 54,921 54,922 54,923 54,924 54,925 54,926 54,927 54,928 54,929 54,930 54,931 54,932 54,933 54,934 54,935 54,936 54,937 54,938 54,939 54,940 54,941 54,942 54,943 54,944 54,945 54,946 54,947 54,948 54,949 54,950 54,951 54,952 54,953 54,954 54,955 54,956 54,957 54,958 54,959 54,960 54,961 54,962 54,963 54,964 54,965 54,966 54,967 54,968 54,969 54,970 54,971 54,972 54,973 54,974 54,975 54,976 54,977 54,978 54,979 54,980 54,981 54,982 54,983 54,984 54,985 54,986 54,987 54,988 54,989 54,990 54,991 54,992 54,993 54,994 54,995 54,996 54,997 54,998 54,999 55,000 55,001 55,002 55,003 55,004 55,005 55,006 55,007 55,008 55,009 55,010 55,011 55,012 55,013 55,014 55,015 55,016 55,017 55,018 55,019 55,020 55,021 55,022 55,023 55,024 55,025 55,026 55,027 55,028 55,029 55,030 55,031 55,032 55,033 55,034 55,035 55,036 55,037 55,038 55,039 55,040 55,041 55,042 55,043 55,044 55,045 55,046 55,047 55,048 55,049 55,050 55,051 55,052 55,053 55,054 55,055 55,056 55,057 55,058 55,059 55,060 55,061 55,062 55,063 55,064 55,065 55,066 55,067 55,068 55,069 55,070 55,071 55,072 55,073 55,074 55,075 55,076 55,077 55,078 55,079 55,080 55,081 55,082 55,083 55,084 55,085 55,086 55,087 55,088 55,089 55,090 55,091 55,092 55,093 55,094 55,095 55,096 55,097 55,098 55,099 55,100 55,101 55,102 55,103 55,104 55,105 55,106 55,107 55,108 55,109 55,110 55,111 55,112 55,113 55,114 55,115 55,116 55,117 55,118 55,119 55,120 55,121 55,122 55,123 55,124 55,125 55,126 55,127 55,128 55,129 55,130 55,131 55,132 55,133 55,134 55,135 55,136 55,137 55,138 55,139 55,140 55,141 55,142 55,143 55,144 55,145 55,146 55,147 55,148 55,149 55,150 55,151 55,152 55,153 55,154 55,155 55,156 55,157 55,158 55,159 55,160 55,161 55,162 55,163 55,164 55,165 55,166 55,167 55,168 55,169 55,170 55,171 55,172 55,173 55,174 55,175 55,176 55,177 55,178 55,179 55,180 55,181 55,182 55,183 55,184 55,185 55,186 55,187 55,188 55,189 55,190 55,191 55,192 55,193 55,194 55,195 55,196 55,197 55,198 55,199 55,200 55,201 55,202 55,203 55,204 55,205 55,206 55,207 55,208 55,209 55,210 55,211 55,212 55,213 55,214 55,215 55,216 55,217 55,218 55,219 55,220 55,221 55,222 55,223 55,224 55,225 55,226 55,227 55,228 55,229 55,230 55,231 55,232 55,233 55,234 55,235 55,236 55,237 55,238 55,239 55,240 55,241 55,242 55,243 55,244 55,245 55,246 55,247 55,248 55,249 55,250 55,251 55,252 55,253 55,254 55,255 55,256 55,257 55,258 55,259 55,260 55,261 55,262 55,263 55,264 55,265 55,266 55,267 55,268 55,269 55,270 55,271 55,272 55,273 55,274 55,275 55,276 55,277 55,278 55,279 55,280 55,281 55,282 55,283 55,284 55,285 55,286 55,287 55,288 55,289 55,290 55,291 55,292 55,293 55,294 55,295 55,296 55,297 55,298 55,299 55,300 55,301 55,302 55,303 55,304 55,305 55,306 55,307 55,308 55,309 55,310 55,311 55,312 55,313 55,314 55,315 55,316 55,317 55,318 55,319 55,320 55,321 55,322 55,323 55,324 55,325 55,326 55,327 55,328 55,329 55,330 55,331 55,332 55,333 55,334 55,335 55,336 55,337 55,338 55,339 55,340 55,341 55,342 55,343 55,344 55,345 55,346 55,347 55,348 55,349 55,350 55,351 55,352 55,353 55,354 55,355 55,356 55,357 55,358 55,359 55,360 55,361 55,362 55,363 55,364 55,365 55,366 55,367 55,368 55,369 55,370 55,371 55,372 55,373 55,374 55,375 55,376 55,377 55,378 55,379 55,380 55,381 55,382 55,383 55,384 55,385 55,386 55,387 55,388 55,389 55,390 55,391 55,392 55,393 55,394 55,395 55,396 55,397 55,398 55,399 55,400 55,401 55,402 55,403 55,404 55,405 55,406 55,407 55,408 55,409 55,410 55,411 55,412 55,413 55,414 55,415 55,416 55,417 55,418 55,419 55,420 55,421 55,422 55,423 55,424 55,425 55,426 55,427 55,428 55,429 55,430 55,431 55,432 55,433 55,434 55,435 55,436 55,437 55,438 55,439 55,440 55,441 55,442 55,443 55,444 55,445 55,446 55,447 55,448 55,449 55,450 55,451 55,452 55,453 55,454 55,455 55,456 55,457 55,458 55,459 55,460 55,461 55,462 55,463 55,464 55,465 55,466 55,467 55,468 55,469 55,470 55,471 55,472 55,473 55,474 55,475 55,476 55,477 55,478 55,480 55,481 55,482 55,483 55,484 55,485 55,486 55,487 55,488 55,489 55,490 55,491 55,492 55,493 55,494 55,495 55,496 55,497 55,498 55,499 55,500 55,501 55,502 55,503 55,504 55,505 55,506 55,507 55,508 55,509 55,510 55,511 55,512 55,513 55,514 55,515 55,516 55,517 55,518 55,519 55,520 55,521 55,522 55,523 55,524 55,525 55,526 55,527 55,528 55,529 55,530 55,531 55,532 55,533 55,534 55,535 55,536 55,537 55,538 55,539 55,540 55,541 55,542 55,544 55,545 55,546 55,547 55,548 55,549 55,550 55,551 55,552 55,553 55,554 55,555 55,556 55,557 55,558 55,559 55,560 55,561 55,562 55,563 55,564 55,565 55,566 55,567 55,568 55,569 55,570 55,571 55,572 55,573 55,574 55,575 55,576 55,577 55,578 55,579 55,580 55,581 55,582 55,583 55,584 55,585 55,586 55,587 55,588 55,589 55,590 55,591 55,592 55,593 55,594 55,595 55,596 55,597 55,598 55,599 55,600 55,601 55,602 55,603 55,604 55,605 55,606 55,607 55,608 55,609 55,610 55,611 55,612 55,613 55,614 55,615 55,616 55,617 55,618 55,619 55,620 55,621 55,622 55,623 55,624 55,625 55,626 55,627 55,628 55,629 55,630 55,631 55,632 55,633 55,634 55,635 55,636 55,637 55,638 55,639 55,640 55,641 55,642 55,643 55,644 55,645 55,646 55,647 55,648 55,649 55,650 55,651 55,652 55,653 55,654 55,655 55,656 55,657 55,658 55,659 55,660 55,661 55,662 55,663 55,664 55,665 55,666 55,667 55,668 55,669 55,670 55,671 55,672 55,673 55,674 55,675 55,676 55,677 55,678 55,679 55,680 55,681 55,682 55,683 55,684 55,685 55,686 55,687 55,688 55,689 55,690 55,691 55,692 55,693 55,694 55,695 55,696 55,697 55,698 55,699 55,700 55,701 55,702 55,703 55,704 55,705 55,706 55,707 55,708 55,709 55,710 55,711 55,712 55,713 55,714 55,715 55,716 55,717 55,718 55,719 55,720 55,721 55,722 55,723 55,724 55,725 55,726 55,727 55,728 55,729 55,730 55,731 55,732 55,733 55,734 55,735 55,736 55,737 55,739 55,740 55,741 55,742 55,743 55,744 55,745 55,746 55,747 55,748 55,749 55,750 55,751 55,752 55,753 55,754 55,755 55,756 55,757 55,758 55,759 55,760 55,761 55,762 55,763 55,764 55,765 55,766 55,767 55,768 55,769 55,770 55,771 55,772 55,773 55,774 55,775 55,776 55,777 55,778 55,779 55,780 55,781 55,782 55,783 55,784 55,785 55,786 55,787 55,788 55,789 55,790 55,791 55,792 55,793 55,794 55,795 55,796 55,797 55,798 55,799 55,800 55,801 55,802 55,803 55,804 55,805 55,806 55,807 55,808 55,809 55,810 55,811 55,812 55,813 55,814 55,815 55,816 55,817 55,818 55,819 55,820 55,821 55,822 55,823 55,824 55,825 55,826 55,827 55,828 55,829 55,830 55,831 55,832 55,833 55,834 55,835 55,836 55,837 55,838 55,839 55,840 55,841 55,842 55,843 55,844 55,845 55,846 55,847 55,848 55,849 55,850 55,851 55,852 55,853 55,854 55,855 55,856 55,857 55,858 55,859 55,860 55,861 55,862 55,863 55,864 55,865 55,866 55,867 55,868 55,869 55,870 55,871 55,872 55,873 55,874 55,875 55,876 55,877 55,878 55,879 55,880 55,881 55,882 55,883 55,884 55,885 55,886 55,887 55,888 55,889 55,890 55,891 55,892 55,893 55,894 55,895 55,896 55,897 55,898 55,899 55,900 55,901 55,902 55,903 55,904 55,905 55,906 55,907 55,908 55,909 55,910 55,911 55,912 55,913 55,914 55,915 55,916 55,917 55,918 55,919 55,920 55,921 55,922 55,923 55,924 55,925 55,926 55,927 55,928 55,929 55,930 55,931 55,932 55,933 55,934 55,935 55,936 55,937 55,938 55,939 55,940 55,941 55,942 55,943 55,944 55,945 55,946 55,947 55,948 55,949 55,950 55,951 55,952 55,953 55,954 55,955 55,956 55,957 55,958 55,959 55,960 55,961 55,962 55,963 55,964 55,965 55,966 55,967 55,968 55,969 55,970 55,971 55,972 55,973 55,974 55,975 55,976 55,977 55,978 55,979 55,980 55,981 55,982 55,983 55,984 55,985 55,986 55,987 55,988 55,989 55,990 55,991 55,992 55,993 55,994 55,995 55,996 55,997 55,998 55,999 56,000 56,001 56,002 56,003 56,004 56,005 56,006 56,007 56,008 56,009 56,010 56,011 56,012 56,013 56,014 56,015 56,016 56,017 56,018 56,019 56,020 56,021 56,022 56,023 56,024 56,025 56,026 56,027 56,028 56,029 56,030 56,031 56,032 56,033 56,034 56,035 56,036 56,037 56,038 56,039 56,040 56,041 56,042 56,043 56,044 56,045 56,046 56,047 56,048 56,049 56,050 56,051 56,052 56,053 56,054 56,055 56,056 56,057 56,058 56,059 56,060 56,061 56,062 56,063 56,064 56,065 56,066 56,067 56,068 56,069 56,070 56,071 56,072 56,073 56,074 56,075 56,076 56,077 56,078 56,079 56,080 56,081 56,082 56,083 56,084 56,085 56,086 56,087 56,088 56,089 56,090 56,091 56,092 56,093 56,094 56,095 56,096 56,097 56,098 56,099 56,100 56,101 56,102 56,103 56,104 56,105 56,106 56,107 56,108 56,109 56,110 56,111 56,112 56,113 56,114 56,115 56,116 56,117 56,118 56,119 56,120 56,121 56,122 56,123 56,124 56,125 56,126 56,127 56,128 56,129 56,130 56,131 56,132 56,133 56,134 56,135 56,136 56,137 56,138 56,139 56,140 56,141 56,142 56,143 56,144 56,145 56,146 56,147 56,148 56,149 56,150 56,151 56,152 56,156 56,158 56,159 56,160 56,161 56,163 56,164 56,165 56,166 56,167 56,168 56,169 56,170 56,171 56,172 56,173 56,174 56,175 56,176 56,177 56,178 56,179 56,180 56,181 56,182 56,183 56,184 56,185 56,186 56,187 56,188 56,189 56,190 56,191 56,192 56,193 56,194 56,195 56,196 56,197 56,198 56,199 56,200 56,201 56,202 56,203 56,204 56,205 56,206 56,207 56,208 56,209 56,210 56,211 56,212 56,213 56,214 56,215 56,216 56,217 56,219 56,223 56,232 56,237 56,239 56,242 56,244 56,248 56,249 56,251 56,254 56,255 56,256 56,258 56,259 56,260 56,276 56,287 56,288 56,289 56,292 56,293 56,294 56,295 56,296 56,297 56,298 56,299 56,300 56,301 56,302 56,303 56,304 56,305 56,306 56,307 56,308 56,309 56,310 56,311 56,312 56,313 56,314 56,315 56,316 56,317 56,318 56,319 56,320 56,321 56,322 56,323 56,324 56,325 56,326 56,327 56,328 56,329 56,330 56,331 56,332 56,333 56,334 56,335 56,336 56,337 56,338 56,339 56,340 56,341 56,342 56,343 56,344 56,345 56,346 56,347 56,348 56,349 56,350 56,351 56,352 56,353 56,354 56,355 56,356 56,357 56,358 56,359 56,360 56,361 56,362 56,363 56,364 56,365 56,366 56,367 56,368 56,369 56,370 56,371 56,372 56,373 56,374 56,375 56,377 56,378 56,379 56,380 56,381 56,382 56,383 56,384 56,385 56,386 56,387 56,388 56,389 56,390 56,391 56,392 56,393 56,394 56,395 56,396 56,397 56,398 56,399 56,400 56,401 56,402 56,403 56,404 56,405 56,406 56,408 56,409 56,410 56,411 56,412 56,413 56,414 56,415 56,416 56,417 56,418 56,419 56,420 56,421 56,422 56,423 56,424 56,425 56,426 56,427 56,428 56,429 56,430 56,431 56,432 56,433 56,434 56,435 56,436 56,437 56,438 56,439 56,440 56,441 56,442 56,443 56,444 56,445 56,446 56,447 56,448 56,449 56,450 56,451 56,452 56,453 56,454 56,455 56,456 56,457 56,458 56,459 56,460 56,461 56,462 56,463 56,464 56,465 56,466 56,467 56,468 56,469 56,470 56,471 56,472 56,473 56,474 56,475 56,476 56,477 56,478 56,479 56,480 56,481 56,482 56,483 56,484 56,485 56,486 56,487 56,488 56,489 56,490 56,491 56,492 56,493 56,494 56,495 56,496 56,497 56,498 56,499 56,500 56,501 56,502 56,503 56,504 56,505 56,506 56,507 56,508 56,509 56,510 56,511 56,512 56,513 56,514 56,515 56,516 56,517 56,518 56,519 56,520 56,521 56,522 56,523 56,524 56,525 56,526 56,527 56,528 56,529 56,530 56,531 56,532 56,533 56,534 56,535 56,536 56,537 56,538 56,539 56,540 56,541 56,542 56,543 56,544 56,545 56,546 56,547 56,548 56,549 56,550 56,551 56,552 56,553 56,554 56,555 56,556 56,557 56,558 56,559 56,560 56,561 56,564 56,565 56,566 56,567 56,568 56,569 56,570 56,572 56,573 56,574 56,575 56,576 56,577 56,578 56,579 56,580 56,581 56,582 56,583 56,584 56,585 56,586 56,587 56,588 56,589 56,590 56,591 56,592 56,593 56,594 56,595 56,596 56,597 56,598 56,599 56,600 56,601 56,602 56,603 56,604 56,605 56,606 56,607 56,608 56,609 56,610 56,611 56,612 56,613 56,614 56,615 56,616 56,617 56,618 56,619 56,620 56,621 56,622 56,623 56,624 56,625 56,626 56,627 56,628 56,629 56,630 56,631 56,632 56,633 56,634 56,635 56,636 56,637 56,638 56,639 56,640 56,641 56,642 56,643 56,644 56,645 56,646 56,647 56,648 56,649 56,650 56,651 56,652 56,653 56,654 56,655 56,656 56,657 56,658 56,659 56,660 56,661 56,662 56,663 56,664 56,665 56,666 56,667 56,668 56,669 56,670 56,671 56,672 56,673 56,674 56,675 56,676 56,677 56,678 56,679 56,680 56,681 56,682 56,683 56,684 56,685 56,686 56,687 56,688 56,689 56,690 56,691 56,692 56,693 56,694 56,696 56,697 56,698 56,699 56,700 56,701 56,702 56,703 56,704 56,705 56,706 56,707 56,708 56,709 56,710 56,711 56,712 56,713 56,714 56,715 56,716 56,717 56,718 56,719 56,720 56,721 56,722 56,723 56,724 56,725 56,726 56,727 56,728 56,729 56,730 56,732 56,733 56,734 56,735 56,736 56,737 56,738 56,739 56,740 56,741 56,742 56,743 56,744 56,745 56,746 56,747 56,748 56,749 56,750 56,751 56,752 56,753 56,754 56,755 56,756 56,757 56,758 56,759 56,760 56,761 56,762 56,763 56,764 56,765 56,766 56,767 56,768 56,769 56,770 56,771 56,772 56,773 56,774 56,775 56,776 56,777 56,778 56,779 56,780 56,781 56,782 56,783 56,784 56,785 56,786 56,787 56,788 56,789 56,790 56,791 56,792 56,793 56,794 56,795 56,796 56,797 56,798 56,799 56,800 56,801 56,802 56,803 56,804 56,805 56,806 56,807 56,808 56,809 56,810 56,811 56,812 56,813 56,814 56,815 56,816 56,817 56,818 56,819 56,821 56,822 56,823 56,824 56,825 56,844 56,845 56,846 56,847 56,848 56,849 56,850 56,851 56,852 56,853 56,854 56,855 56,856 56,857 56,858 56,859 56,860 56,861 56,862 56,863 56,864 56,865 56,866 56,867 56,868 56,869 56,870 56,871 56,872 56,873 56,874 56,875 56,876 56,877 56,878 56,879 56,880 56,881 56,882 56,883 56,884 56,885 56,886 56,887 56,888 56,889 56,890 56,891 56,892 56,893 56,894 56,895 56,896 56,897 56,898 56,899 56,900 56,901 56,902 56,903 56,904 56,905 56,906 56,907 56,908 56,909 56,910 56,911 56,912 56,913 56,914 56,915 56,916 56,918 56,919 56,920 56,921 56,922 56,923 56,924 56,925 56,926 56,927 56,928 56,929 56,930 56,931 56,932 56,933 56,934 56,935 56,936 56,937 56,938 56,939 56,940 56,941 56,942 56,943 56,944 56,945 56,946 56,947 56,948 56,949 56,950 56,951 56,952 56,953 56,954 56,955 56,956 56,957 56,958 56,959 56,960 56,961 56,962 56,963 56,964 56,965 56,966 56,967 56,968 56,969 56,970 56,971 56,972 56,973 56,974 56,975 56,976 56,977 56,978 56,979 56,980 56,981 56,982 56,983 56,984 56,985 56,986 56,987 56,988 56,989 56,990 56,991 56,992 56,993 56,994 56,995 56,996 56,997 56,998 56,999 57,000 57,001 57,002 57,003 57,004 57,005 57,006 57,007 57,008 57,009 57,010 57,011 57,012 57,013 57,014 57,015 57,016 57,017 57,018 57,019 57,020 57,021 57,022 57,023 57,024 57,025 57,026 57,027 57,028 57,029 57,030 57,031 57,032 57,033 57,034 57,035 57,036 57,037 57,038 57,039 57,040 57,041 57,042 57,043 57,044 57,045 57,046 57,047 57,048 57,049 57,050 57,051 57,052 57,053 57,054 57,055 57,056 57,057 57,058 57,059 57,060 57,061 57,062 57,063 57,064 57,065 57,066 57,067 57,068 57,069 57,070 57,071 57,072 57,073 57,074 57,075 57,076 57,077 57,078 57,079 57,080 57,081 57,082 57,083 57,084 57,085 57,086 57,088 57,089 57,090 57,091 57,092 57,093 57,094 57,095 57,096 57,097 57,098 57,099 57,100 57,101 57,102 57,103 57,104 57,105 57,106 57,107 57,108 57,109 57,110 57,111 57,112 57,113 57,114 57,115 57,116 57,117 57,118 57,119 57,120 57,121 57,122 57,123 57,124 57,125 57,126 57,127 57,128 57,129 57,130 57,131 57,132 57,133 57,134 57,135 57,136 57,137 57,138 57,139 57,140 57,141 57,142 57,143 57,144 57,145 57,146 57,147 57,148 57,149 57,150 57,151 57,153 57,154 57,155 57,156 57,157 57,158 57,159 57,160 57,161 57,162 57,163 57,164 57,165 57,166 57,167 57,168 57,169 57,170 57,171 57,172 57,173 57,174 57,175 57,176 57,177 57,178 57,179 57,180 57,181 57,182 57,183 57,184 57,185 57,186 57,187 57,188 57,189 57,190 57,191 57,192 57,193 57,194 57,195 57,196 57,197 57,198 57,199 57,200 57,201 57,202 57,203 57,204 57,205 57,206 57,207 57,208 57,209 57,210 57,211 57,212 57,213 57,214 57,215 57,216 57,217 57,218 57,219 57,220 57,223 57,224 57,225 57,226 57,227 57,246 57,253 57,254 57,255 57,256 57,258 57,259 57,260 57,261 57,262 57,263 57,264 57,265 57,266 57,267 57,268 57,269 57,270 57,271 57,272 57,273 57,274 57,275 57,276 57,278 57,279 57,280 57,281 57, Sum of RECORD_COUNT BATCH_ID Pre-Post The next important variable is the total number of files coming into the system and total volume of record counts received through those files. Charts below depict values for these variables: