fix(job-run): delete second allocation immediately

Author: MasterPtato

svc/pkg/ds/src/workers/nomad_monitor_eval_update.rs

@@ -63,41 +63,42 @@ async fn worker(
 		}
 	};
 
-	// Fetch and update the run
-	let server_row = sql_fetch_optional!(
-		[ctx, ServerRow]
-		"
-		SELECT server_id, datacenter_id, nomad_eval_plan_ts
-		UPDATE db_ds.server_nomad
-		SET nomad_eval_plan_ts = $2
-		WHERE
-			nomad_dispatched_job_id = $1 AND
-			run_meta_nomad.nomad_eval_plan_ts IS NULL
-		",
-		job_id,
-		ctx.ts(),
-	)
-	.await?;
-
-	// Check if server found
-	let Some(server_row) = server_row else {
-		if ctx.req_dt() > util::duration::minutes(5) {
-			tracing::error!("discarding stale message");
-			return Ok(());
-		} else {
-			retry_bail!("server not found, may be race condition with insertion");
-		}
-	};
-	let server_id = server_row.server_id;
+	// TODO: Rewrite on workflows
 
-	if let Some(eval_plan_ts) = server_row.nomad_eval_plan_ts {
-		tracing::info!(?eval_plan_ts, "eval already planned");
-		return Ok(());
-	}
+	// // Fetch and update the run
+	// let server_row = sql_fetch_optional!(
+	// 	[ctx, ServerRow]
+	// 	"
+	// 	UPDATE db_ds.server_nomad
+	// 	SET nomad_eval_plan_ts = $2
+	// 	WHERE
+	// 		nomad_dispatched_job_id = $1 AND
+	// 		nomad_eval_plan_ts IS NULL
+	// 	RETURNING server_id, datacenter_id, nomad_eval_plan_ts
+	// 	",
+	// 	job_id,
+	// 	ctx.ts(),
+	// )
+	// .await?;
+
+	// // Check if server found
+	// let Some(server_row) = server_row else {
+	// 	if ctx.req_dt() > util::duration::minutes(5) {
+	// 		tracing::error!("discarding stale message");
+	// 		return Ok(());
+	// 	} else {
+	// 		retry_bail!("server not found, may be race condition with insertion");
+	// 	}
+	// };
+	// let server_id = server_row.server_id;
 
-	tracing::info!(%job_id, %server_id, ?eval_status, "updated server");
+	// if let Some(eval_plan_ts) = server_row.nomad_eval_plan_ts {
+	// 	tracing::info!(?eval_plan_ts, "eval already planned");
+	// 	return Ok(());
+	// }
+
+	// tracing::info!(%job_id, %server_id, ?eval_status, "updated server");
 
-	// TODO: Rewrite on workflows
 	// match eval_status {
 	// 	EvalStatus::Failed => {
 	// 		tracing::info!(%server_id, "eval failed");

svc/pkg/job-run/src/util.rs

@@ -1,3 +1,5 @@
+pub const NOMAD_REGION: &str = "global";
+
 // Have to patch `nomad_client::apis::allocations_api::signal_allocation` because it uses `/allocation`
 // instead of `/client/allocation`
 pub async fn signal_allocation(

svc/pkg/job-run/src/workers/nomad_monitor_alloc_plan.rs

@@ -3,7 +3,10 @@ use proto::backend::{self, pkg::*};
 use redis::AsyncCommands;
 use serde::Deserialize;
 
-use crate::workers::NEW_NOMAD_CONFIG;
+use crate::{
+	util::{signal_allocation, NOMAD_REGION},
+	workers::{NEW_NOMAD_CONFIG, NOMAD_CONFIG},
+};
 
 #[derive(Debug, Deserialize)]
 #[serde(rename_all = "PascalCase")]
@@ -229,11 +232,12 @@ async fn update_db(
 	let run_row = sql_fetch_optional!(
 		[ctx, RunRow, @tx tx]
 		"
-		SELECT runs.run_id, runs.region_id, runs.stop_ts, run_meta_nomad.alloc_plan_ts
-		FROM db_job_state.run_meta_nomad
-		INNER JOIN db_job_state.runs ON runs.run_id = run_meta_nomad.run_id
+		SELECT r.run_id, r.region_id, r.stop_ts, rn.alloc_plan_ts
+		FROM db_job_state.run_meta_nomad AS rn
+		INNER JOIN db_job_state.runs AS r
+		ON r.run_id = rn.run_id
 		WHERE dispatched_job_id = $1
-		FOR UPDATE OF run_meta_nomad
+		FOR UPDATE OF rn
 		",
 		&job_id,
 	)
@@ -255,7 +259,13 @@ async fn update_db(
 			[ctx, @tx tx]
 			"
 			UPDATE db_job_state.run_meta_nomad
-			SET alloc_id = $2, alloc_plan_ts = $3, node_id = $4, node_name = $5, node_public_ipv4 = $6, node_vlan_ipv4 = $7
+			SET
+				alloc_id = $2,
+				alloc_plan_ts = $3,
+				node_id = $4,
+				node_name = $5,
+				node_public_ipv4 = $6,
+				node_vlan_ipv4 = $7
 			WHERE run_id = $1
 			",
 			run_row.run_id,
@@ -301,6 +311,29 @@ async fn update_db(
 			)
 			.await?;
 		}
+	} else {
+		tracing::warn!(%run_id, %alloc_id, "run was already allocated before, killing new allocation");
+
+		if let Err(err) = signal_allocation(
+			&NOMAD_CONFIG,
+			&alloc_id,
+			None,
+			Some(NOMAD_REGION),
+			None,
+			None,
+			Some(nomad_client::models::AllocSignalRequest {
+				task: None,
+				signal: Some("SIGKILL".to_string()),
+			}),
+		)
+		.await
+		{
+			tracing::warn!(
+				?err,
+				?alloc_id,
+				"error while trying to manually kill allocation"
+			);
+		}
 	}
 
 	// Update the run ports