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I am trying to run kvdb introspector in prometheus mode alongside a node using paritydb but running it crashes my node with the following Lock error:
2022-09-09 13:06:15.837 INFO main sc_cli::runner: 👤 Role: AUTHORITY
2022-09-09 13:06:15.837 INFO main sc_cli::runner: 💾 Database: ParityDb at /data/chains/versi_v1_9/paritydb/full
2022-09-09 13:06:15.837 INFO main sc_cli::runner: ⛓ Native runtime: rococo-9270 (parity-rococo-v2.0-0.tx1.au0)
2022-09-09 13:06:19.317 DEBUG main parachain::chain-selection: Using dispute aware relay-chain selection algorithm
versi-validator-profiled-node-0 versi 2022-09-09 13:00:04.372 INFO main sub-libp2p: 🏷 Local node identity is: 12D3KooWSGB5yT5eLdCD4jdnTXpQP34dtk8cHfEf3zGgoLu5Q8F2
versi-validator-profiled-node-0 versi Error:
versi-validator-profiled-node-0 versi 0: Locked(Os { code: 11, kind: WouldBlock, message: "Resource temporarily unavailable" })
versi-validator-profiled-node-0 versi
versi-validator-profiled-node-0 versi ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BACKTRACE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
versi-validator-profiled-node-0 versi ⋮ 5 frames hidden ⋮
versi-validator-profiled-node-0 versi 6: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual::h34a2788a33e8e67c
versi-validator-profiled-node-0 versi at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/result.rs:2105
versi-validator-profiled-node-0 versi 7: polkadot::main::h97ef844da7c8dc77
versi-validator-profiled-node-0 versi at /builds/parity/mirrors/polkadot/src/main.rs:25
versi-validator-profiled-node-0 versi 8: core::ops::function::FnOnce::call_once::h3c266f22b41c124d
versi-validator-profiled-node-0 versi at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/ops/function.rs:248
versi-validator-profiled-node-0 versi ⋮ 14 frames hidden ⋮
versi-validator-profiled-node-0 versi
versi-validator-profiled-node-0 versi Run with COLORBT_SHOW_HIDDEN=1 environment variable to disable frame filtering.
versi-validator-profiled-node-0 versi Run with RUST_BACKTRACE=full to include source snippets.
- versi-validator-profiled-node-0 › versi
- I am running the exporter with:
polkadot-introspector kvdb --db /data/chains/versi_v1_9/paritydb/full --db-type paritydb prometheus --port 9620
- I am starting the introspector and the node at the same time in the same pod so it crashes the node as the db files are locked by the introspector
- If I start the introspector with a delay (eg.
sleep 60; polkadot-introspector kvdb --db /data/chains/versi_v1_9/paritydb/full --db-type paritydb prometheus
) then the node runs fine but the introspector crashes on startup:
Error:
0: Database file is in use. (Resource temporarily unavailable (os error 11))
1: Resource temporarily unavailable (os error 11)
Location:
src/kvdb/paritydb.rs:38
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