adoroszlai opened a new pull request, #9874: URL: https://github.com/apache/ozone/pull/9874
## What changes were proposed in this pull request? Freon is a multi-purpose utility for load-testing Ozone. Most subcommands exercise public API, but some use server-side code (e.g. to simulate some component). Thus `ozone-freon` has dependency on multiple Ozone server components. In HDDS-14439 we are moving to Java 17 for server components, but keeping Java 8 for client components. The goal of this change is to make Freon a client component, thereby keep it usable with Java 8 in the future. It eliminates Freon's dependency on server components by splitting some of its generators into a new module `ozone-vapor`, making Freon a pure client-side tool. We cannot use the top-level command `ozone freon` for both sets of commands, because subcommands share the same classpath. Therefore we also have to introduce a new top-level command (`ozone vapor`). These subcommands are rather obscure, so I think only mentioning this change in the release notes is OK. `BaseFreonGenerator` is shared, Subcommands of `ozone vapor` need to Package name is kept to reduce change. https://issues.apache.org/jira/browse/HDDS-14771 ## How was this patch tested? ```bash $ ozone vapor --help Usage: ozone vapor [-hV] [--server] [--verbose] [-conf=<configurationPath>] [-D=<String=String>]... [COMMAND] Load generator using Ozone server components ... Commands: cgdn Offline container metadata generator for Ozone Datanodes. cgom Offline container metadata generator for Ozone Manager cgscm Offline container metadata generator for Storage Container Manager cmdw, chunk-manager-disk-write Write chunks as fast as possible. cr, container-replicator Replicate / download closed containers. falg, follower-append-log-generator Generate append log entries to a follower server lalg, leader-append-log-generator Generate append log entries to a leader server scm-throughput-benchmark, stb Benchmark for scm throughput. simulate-datanode Simulate one or many datanodes and register them to SCM.This is used to stress test SCM handling a massive cluster. strmg, streaming-generator Create directory structure and stream them multiple times. ``` Existing tests cover Freon. https://github.com/adoroszlai/ozone/actions/runs/22756767625 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
