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pageserver: run at least 2 background task threads

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Otherwise an assertion in CONCURRENT_BACKGROUND_TASKS will
trip if you try to run the pageserver on a single core.
This commit is contained in:
John Spray
2023-12-27 16:02:09 +00:00
parent a2e083ebe0
commit c119af8ddd
1 changed files with 1 additions and 1 deletions
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2
pageserver/src/task_mgr.rs
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@@ -147,7 +147,7 @@ pub(crate) static BACKGROUND_RUNTIME_WORKER_THREADS: Lazy<usize> = Lazy::new(||
// else, but that has not been needed in a long time.
std::env::var("TOKIO_WORKER_THREADS")
.map(|s| s.parse::<usize>().unwrap())
.unwrap_or_else(|_e| usize::max(1, num_cpus::get()))
.unwrap_or_else(|_e| usize::max(2, num_cpus::get()))
});
#[derive(Debug, Clone, Copy)]