michal.politowski
/
UrlsController
forked from lsmyrnaios/UrlsController
1
0
Fork 0
Code Pull Requests Activity
The Controller app of the PDF Aggregation Service.
121 Commits 3 Branches 14 Tags 1.1 MiB
Java 98.3%
Shell 1.6%
Go to file
Lampros Smyrnaios e975bec911 - Add Prometheus and Grafana which help measuring various metrics for the Controller's health and performance. 
- Fix Docker config still using the old (now removed) "application.properties" file.
- Simplify the process of building and running the docker image; Now we use docker compose to run the Controller, along with the Prometheus and Grafana. Also, now it is not requested from the user to login and push the image (this may change in the future).
 		2023-03-21 16:46:33 +02:00
gradle/wrapper - Code polishing. 2023-03-07 16:55:41 +02:00
src/main - Add Prometheus and Grafana which help measuring various metrics for the Controller's health and performance. 2023-03-21 16:46:33 +02:00
.gitignore springified project 2022-01-30 22:15:13 +02:00
Dockerfile - Add Prometheus and Grafana which help measuring various metrics for the Controller's health and performance. 2023-03-21 16:46:33 +02:00
README.md - Exclude empty and null urls in the assignments. 2023-02-16 14:24:47 +02:00
build.gradle - Add Prometheus and Grafana which help measuring various metrics for the Controller's health and performance. 2023-03-21 16:46:33 +02:00
docker-compose.yml - Add Prometheus and Grafana which help measuring various metrics for the Controller's health and performance. 2023-03-21 16:46:33 +02:00
gradle.properties - Improve some log-messages. 2022-11-30 16:28:39 +02:00
installAndRun.sh - Add Prometheus and Grafana which help measuring various metrics for the Controller's health and performance. 2023-03-21 16:46:33 +02:00
settings.gradle - Add the "isControllerAlive"-endpoint. 2021-09-23 15:08:52 +03:00

README.md

UrlsController

The Controller's Application receives requests coming from the Workers , constructs an assignments-list with data received from a database and returns the list to the workers.
Then, it receives the "WorkerReports", it requests the full-texts from the workers, in batches, and uploads them on the S3-Object-Store. Finally, it writes the related reports, along with the updated file-locations into the database.
The database used is the Impala.

Statistics API:

  • "getNumberOfAllPayloads" endpoint: http://:/api/stats/getNumberOfAllPayloads
    This endpoint returns the total number of payloads existing in the database, independently of the way they were aggregated. This includes the payloads created by other pieces of software, before the PDF-Aggregation-Service was created.
  • "getNumberOfPayloadsAggregatedByService" endpoint: http://:/api/stats/getNumberOfPayloadsAggregatedByService
    This endpoint returns the number of payloads aggregated by the PDF-Aggregated-Service itself. It excludes the payloads aggregated by other methods, by applying a Date-filter for the records created in 2021 or later.
  • "getNumberOfRecordsInspected" endpoint: http://:/api/stats/getNumberOfRecordsInspected
    This endpoint returns the number of records inspected by the PDF-Aggregation-Service.

To install and run the application:

  • Run git clone and then cd UrlsController.
  • Set the preferable values inside the application.properties file.
  • Execute the installAndRun.sh script which builds and runs the app.
    If you want to just run the app, then run the script with the argument "1": ./installAndRun.sh 1.
    If you want to build and run the app on a Docker Container, then run the script with the argument "0" followed by the argument "1": ./installAndRun.sh 0 1.

Implementation notes:

  • For transferring the full-text files, we use Facebook's Zstandard compression algorithm, which brings very big benefits in compression rate and speed.
  • The uploaded full-text files follow this naming-scheme: "datasourceID/recordId::fileHash.pdf"