{"record":{"id":"c887d5ff9167941d","repo":"windmill-labs/windmill","slug":"database-delete-failed-e","errorCode":null,"errorMessage":"Database delete failed: {e:?}","messagePattern":"Database delete failed: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"backend/windmill-worker/src/memory_oss.rs","lineNumber":53,"sourceCode":"        return Ok(());\n    }\n\n    memory_common::write_to_db(db, workspace_id, conversation_id, step_id, messages)\n        .await\n        .map_err(|e| anyhow::anyhow!(\"Database write failed: {e:?}\"))\n}\n\n/// Delete all memory for a conversation from storage\n/// In OSS: always deletes from database\n#[cfg(not(all(feature = \"private\", feature = \"enterprise\")))]\npub async fn delete_conversation_memory(\n    db: &DB,\n    workspace_id: &str,\n    conversation_id: Uuid,\n) -> anyhow::Result<()> {\n    memory_common::delete_conversation_from_db(db, workspace_id, conversation_id)\n        .await\n        .map_err(|e| anyhow::anyhow!(\"Database delete failed: {e:?}\"))\n}\n","sourceCodeStart":35,"sourceCodeEnd":55,"githubUrl":"https://github.com/windmill-labs/windmill/blob/e474e8803ce2ff5c2df09a58dab51d45f5c922ca/backend/windmill-worker/src/memory_oss.rs#L35-L55","documentation":"OSS agent memory deleter: `delete_conversation_memory` wraps failures of `memory_common::delete_conversation_from_db`, which removes all stored messages for a conversation. A failure leaves stale conversation memory in the database and the deletion caller surfaces an error.","triggerScenarios":"Calling `delete_conversation_memory(db, workspace_id, conversation_id)` when the DB delete fails — connection drop, missing table (unmigrated DB), or foreign-key restrictions if related rows reference memory entries.","commonSituations":"Deleting a conversation right as Postgres restarts; OSS instance without the memory migrations; workspace cleanup tooling racing a concurrent write to the same conversation.","solutions":["Check the `{e:?}` chain for the underlying cause (connectivity vs. schema).","Run pending database migrations.","Retry the deletion — deletes are idempotent, so a retry after the transient issue is safe.","If rows persist, delete them manually via SQL for the offending conversation_id."],"exampleFix":null,"handlingStrategy":"retry","validationCode":"psql \"$DATABASE_URL\" -c 'select 1 from agent_memory limit 1' || echo 'migrate first'","typeGuard":null,"tryCatchPattern":"// deletes are idempotent: retry with backoff\nfor attempt in 0..3 {\n    match delete_conversation_memory(&db, w_id, conv_id).await {\n        Ok(()) => break,\n        Err(e) if attempt < 2 => tokio::time::sleep(Duration::from_secs(2)).await,\n        Err(e) => return Err(e),\n    }\n}","preventionTips":["Retry deletes — idempotent and safe","Verify migrations ran before workspace cleanup tooling","Avoid deleting conversations during DB maintenance windows"],"tags":["database","agent","memory","delete"],"backgroundTag":"database-delete-failed","analyzedSha":"e474e8803ce2ff5c2df09a58dab51d45f5c922ca","analyzedAt":"2026-09-03T12:38:19.024Z","contentChangedAt":"2026-09-03T12:38:19.024Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}