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client/cli/src/config: Warn on low file descriptor limit (#6956)

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* client/cli/src/config: Warn on low file descriptor limit

Substrate sets the soft file descriptor limit to the hard limit at
startup. In the case of the latter being low already (< 10_000) a
Substrate node under high demand might run into issues e.g. when opening
up new TCP connections or persisting data to the database.

With this commit a warn message is printed to stderr.

* client/cli/Cargo.toml: Update to fdlimit 0.2.0
This commit is contained in:
Max Inden
2020-08-31 14:37:06 +02:00
committed by GitHub
parent e9d446a4ce
commit 875daa31bf
4 changed files with 22 additions and 9 deletions
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substrate/Cargo.lock
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@@ -1486,9 +1486,9 @@ checksum = "36a9cb09840f81cd211e435d00a4e487edd263dc3c8ff815c32dd76ad668ebed"
[[package]]
name = "fdlimit"
version = "0.1.4"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0da54a593b34c71b889ee45f5b5bb900c74148c5f7f8c6a9479ee7899f69603c"
checksum = "47bc6e222b8349b2bd0acb85a1d16d22852376b3ceed2a7f09c2692c3d8a78d0"
dependencies = [
"libc",
]