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UrlsController
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25 Commits

Author SHA1 Message Date
Lampros Smyrnaios 1048463ca0 - Improve error-handling in "S3ObjectStore.emptyBucket()". 
- Change some log-levels.
- Code polishing.
 2024-03-11 16:17:32 +02:00
Lampros Smyrnaios 2e60128084 - Allow to easily change the por used by workers. 
- Show the number of active background-tasks and bulkImportDirs, which delay the Service's shutdown.
- Update dependencies.
- Code polishing.
 2023-12-19 23:31:42 +02:00
Lampros Smyrnaios d90ad51609 Add the "shutdownAllWorkersGracefully" and "cancelShutdownAllWorkersGracefully" endpoints, in order to be able to shut them down at once and update them, without shutting down the whole Service. So in this case the bulk-import procedures will continue to work. 2023-11-29 16:45:58 +02:00
Lampros Smyrnaios 856c62887d - Make sure the "UTF_8" charset is used, when we get a message from the response-body. 
- Improve some log-messages.
 2023-10-26 11:44:23 +03:00
Lampros Smyrnaios bdf834c439 - Refactor the "shutdown" script to do an orderly-shutdown, by default, by calling the "shutdownService" endpoint. In case a "force-shutdown" is needed, that can be requested with a cmd-argument. 
- Fix not updating the "UrlsController.numOfWorkers" correctly.
- Code polishing.
 2023-10-23 17:19:29 +03:00
Lampros Smyrnaios fb2877dbe8 Upgrade the execution system for the backgroundTasks: 
- Submit each task immediately for execution, instead of waiting for a scheduling thread to send all gathered tasks (up to that point) to the ExecutorService (and block until they are finished, before it can start again).
- Hold the Future of each submitted task to a synchronized-list to check the result of each task at a scheduled time.
- Reduce the cpu-time to assure the Service can shut down, by checking if there are "actively" and "about-to-be-executed" tasks, at the same time. Instead of having to rely on the additional checking of the "shutdown"-status of each worker to verify that no active task exist.
- Improve the threads' shutdown procedure.
 2023-10-09 17:23:59 +03:00
Lampros Smyrnaios aa3f32f3da - Make sure the given number of threads, given by the user is above zero. 
- Adjust the number and size of log files.
- Update Spring Boot.
- Code polishing.
 2023-08-30 14:02:54 +03:00
Lampros Smyrnaios d821ae398f Improve performance by applying the merging-procedure for the parquet files of the database tables less often, while keeping the benefits of having a relatively small maximum number of parquet files in search operations. 2023-07-24 20:28:41 +03:00
Lampros Smyrnaios 9cbac77c2a - Add check for "shouldShutdownService" before allowing to continue with a bulk-import request. 
- Add check for remaining background tasks (including bulkImports), before checking if the workers have shut down and then shut down the Service.
 2023-07-21 16:19:00 +03:00
Lampros Smyrnaios cec2531737 - Increase the "numOfBackgroundThreads" to 8. 
- Make the "numOfBackgroundThreads" and "numOfThreadsPerBulkImportProcedure" configurable from the "application.yml" file.
- Code polishing.
 2023-07-21 11:45:50 +03:00
Lampros Smyrnaios e8644cb64f - Optimize the "insertAssignmentsQuery". 
- Add documentation about the Prometheus Metrics, in README.
- Update Dependencies.
- Code polishing.
 2023-07-05 17:10:30 +03:00
Lampros Smyrnaios d52601e819 - Add handling for the "EmptyResultDataAccessException" in "UrlsServiceImpl.getAssignments()", which is thrown when no assignments are returned from the query. 
- Code polishing.
 2023-06-22 12:39:11 +03:00
Lampros Smyrnaios 798fa09d68 - Identify and handle a possible Worker-crash, in "UrlsServiceImpl.postReportResultToWorker()". 
- Add/Improve some log messages.
- Update and cleanup dependencies.
- Code polishing.
 2023-06-15 23:19:36 +03:00
Lampros Smyrnaios 6669dc61bf - Increase the initialDelay for the "checkIfServiceIsReadyForShutdown" scheduled-task, in production, to 10 minutes. 
- Code polishing.
 2023-06-06 16:49:53 +03:00
Lampros Smyrnaios a38d6ace79 Code polishing. 2023-05-29 12:21:48 +03:00
Lampros Smyrnaios 74ff31fc64 - Show the workerIPs in the logs. 
- Rename the "FullTexts"-files to "BulkImport".
 2023-05-29 12:12:08 +03:00
Lampros Smyrnaios 3988eb3a48 - Use a separate HDFS sub-dir for every assignments-batch, in order to avoid any disrruptancies from multiple threads moving parquet-files from the same sub-dir. Multiple batches from the same worker may be processed at the same time. These sub-dirs are deleted afterwards. 
- Treat the "contains no visible files" situation as an error. In which case the assignments-data is presumed to not have been inserted to the database tables.
- Code polishing/cleanup.
 2023-05-27 02:36:05 +03:00
Lampros Smyrnaios 164245cb53 - Automatically delete the unsuccessful WorkerReports, which are more than 7 days old. 
- Optimize the Service's startup speed, by setting "initialDelays" to the scheduled tasks.
- Optimize documentation.
 2023-05-24 16:59:42 +03:00
Lampros Smyrnaios cd1fb0af88 - Process the WorkerReports in background Jobs and post the reportResults to the Workers. 
- Save the workerReports to json files, until they are processed successfully.
- Show some custom metrics in prometheus.
 2023-05-24 13:52:28 +03:00
Lampros Smyrnaios 0ea3e2de24 Add the "shutdownService" and "cancelShutdownService" endpoints. The Controller sends the related requests to the Workers and shutdowns gracefully, after all workers have shutdown. 2023-05-24 13:42:29 +03:00
Lampros Smyrnaios c7bfd75973 - Add the "getWorkersInfo" endpoint. 
- Improve startup speed, by using a faster remote server to get the host's machine public IP. This also reduces the risk of not being able to get the public IP at all.
- Fix the detection of a different IP for a known worker.
- Improve documentation.
 2023-05-23 14:57:15 +03:00
Lampros Smyrnaios 0ab6bae93a - Optimize the json-conversion of the "BulkImportReport". 
- Code polishing.
 2023-05-18 17:30:40 +03:00
Lampros Smyrnaios f7f919cee1 - Make sure we set the "hasShutdown" to "false", for each known worker which was restarted. 
- Fix markdown of urls in prometheus' readme.
 2023-05-16 12:24:14 +03:00
Lampros Smyrnaios f51a34138f - Use separate HDFS subdirectories for each worker in order to avoid seeing exceptions about "empty hdfs directory" when "loading" data to the database, because one worker has loaded data generated by multiple workers (since we use only 1 load operation for multiple parquet files). 
- Store each worker's info in a hash-table, in order to efficiently know if we need to create new hdfs subdirectories. Also, this will help to issue "shutdown" requests to the workers in the future, as well as to know which worker has shutdown.
 2023-05-15 13:12:20 +03:00
Lampros Smyrnaios ff13af7abb Use a StatsService interface. 2023-03-13 12:39:39 +02:00