Hasura 1.3.0 中的事件触发器是否损坏？答案

【问题标题】：Are event triggers in Hasura 1.3.0 broken?Hasura 1.3.0 中的事件触发器是否损坏？
【发布时间】：2020-08-14 04:24:16
【问题描述】：

我只是在我的users 表上测试一个事件触发器，而当触发器工作时（它很好地命中了 webhook）它试图记录触发器工作失败。我在 1.3.0 上收到以下错误（通过 docker）

{
  "type": "event-trigger",
  "timestamp": "2020-08-12T01:03:20.880+0000",
  "level": "error",
  "detail": {
    "internal": {
      "statement": "\n          INSERT INTO hdb_catalog.event_invocation_logs (event_id, status, request, response)\n          VALUES ($1, $2, $3, $4)\n          ",
      "prepared": true,
      "error": {
        "exec_status": "FatalError",
        "hint": null,
        "message": "null value in column \"id\" violates not-null constraint",
        "status_code": "23502",
        "description": "Failing row contains (null, 2ee6ad0a-187b-46ba-9ae8-c62d21c908db, 200, {\"payload\":{\"event\":{\"session_variables\":{\"x-hasura-role\":\"admin..., {\"data\":{\"status\":200,\"body\":\"{\\\"job_id\\\": \\\"8b4ed8f6-79f8-44bd-..., 2020-08-12 01:03:21.860502)."
      },
      "arguments": [
        "(Oid 25,Just (\"2ee6ad0a-187b-46ba-9ae8-c62d21c908db\",Binary))",
        "(Oid 20,Just (\"\\NUL\\NUL\\NUL\\NUL\\NUL\\NUL\\NUL\\200\",Binary))",
        "(Oid 114,Just (\"{\\\"payload\\\":{\\\"event\\\":{\\\"session_variables\\\":{\\\"x-hasura-role\\\":\\\"admin\\\"},\\\"op\\\":\\\"MANUAL\\\",\\\"data\\\":{\\\"old\\\":null,\\\"new\\\":{\\\"email\\\":\\\"whatever@foo.com\\\",\\\"display_name\\\":\\\"Some Dude\\\",\\\"auth0_id\\\":\\\"auth0|00000000000\\\",\\\"username\\\":\\\"dude\\\",\\\"updated_at\\\":\\\"2020-08-12T00:45:43.004511+00:00\\\",\\\"created_at\\\":\\\"2020-08-06T21:23:52.923922+00:00\\\",\\\"id\\\":1,\\\"avatar_url\\\":null,\\\"description\\\":null}}},\\\"created_at\\\":\\\"2020-08-12T00:58:39.870033Z\\\",\\\"id\\\":\\\"2ee6ad0a-187b-46ba-9ae8-c62d21c908db\\\",\\\"delivery_info\\\":{\\\"max_retries\\\":3,\\\"current_retry\\\":0},\\\"trigger\\\":{\\\"name\\\":\\\"maintain_sengrid_lists\\\"},\\\"table\\\":{\\\"schema\\\":\\\"public\\\",\\\"name\\\":\\\"users\\\"}},\\\"headers\\\":[{\\\"value\\\":\\\"application/json\\\",\\\"name\\\":\\\"Content-Type\\\"},{\\\"value\\\":\\\"hasura-graphql-engine/v1.3.0\\\",\\\"name\\\":\\\"User-Agent\\\"}],\\\"version\\\":\\\"2\\\"}\",Binary))",
        "(Oid 114,Just (\"{\\\"data\\\":{\\\"status\\\":200,\\\"body\\\":\\\"{\\\\\\\"job_id\\\\\\\": \\\\\\\"8b4ed8f6-79f8-44bd-981e-fb59336a01e7\\\\\\\"}\\\",\\\"headers\\\":[{\\\"value\\\":\\\"50\\\",\\\"name\\\":\\\"Content-Length\\\"},{\\\"value\\\":\\\"application/json\\\",\\\"name\\\":\\\"Content-Type\\\"},{\\\"value\\\":\\\"Caddy\\\",\\\"name\\\":\\\"Server\\\"},{\\\"value\\\":\\\"5d5897\\\",\\\"name\\\":\\\"X-Request-Id\\\"},{\\\"value\\\":\\\"Wed, 12 Aug 2020 01:03:21 GMT\\\",\\\"name\\\":\\\"Date\\\"}]},\\\"version\\\":\\\"2\\\",\\\"type\\\":\\\"webhook_response\\\"}\",Binary))"
      ]
    },
    "path": "$",
    "error": "database query error",
    "code": "unexpected"
  }
}

我能想到的可能导致这种情况的一件事是，我创建了事件触发器，尝试触发它，然后注意到一个控制台错误，提示 gen_random_uuid 缺少函数。我做了CREATE EXTENSION pgcrypto 然后尝试重新创建触发器。正如我上面所说，webhook 部分似乎是正确的，它击中了正确的钩子并获得了正确的结果，这似乎是一个事件触发日志记录问题。

更新：我也无法创建 cron 触发器。在控制台中点击创建时出现此错误：

{
    "statement": "INSERT INTO \"hdb_catalog\".\"hdb_cron_events\" ( \"trigger_name\", \"scheduled_time\" ) VALUES ('event_materializer', '2020-08-12T18:00:00Z'), ('event_materializer', '2020-08-12T18:10:00Z'), ('event_materializer', '2020-08-12T18:20:00Z'), ('event_materializer', '2020-08-12T18:30:00Z'), ('event_materializer', '2020-08-12T18:40:00Z'), ('event_materializer', '2020-08-12T18:50:00Z'), ('event_materializer', '2020-08-12T19:00:00Z'), ('event_materializer', '2020-08-12T19:10:00Z'), ('event_materializer', '2020-08-12T19:20:00Z'), ('event_materializer', '2020-08-12T19:30:00Z'), ('event_materializer', '2020-08-12T19:40:00Z'), ('event_materializer', '2020-08-12T19:50:00Z'), ('event_materializer', '2020-08-12T20:00:00Z'), ('event_materializer', '2020-08-12T20:10:00Z'), ('event_materializer', '2020-08-12T20:20:00Z'), ('event_materializer', '2020-08-12T20:30:00Z'), ('event_materializer', '2020-08-12T20:40:00Z'), ('event_materializer', '2020-08-12T20:50:00Z'), ('event_materializer', '2020-08-12T21:00:00Z'), ('event_materializer', '2020-08-12T21:10:00Z'), ('event_materializer', '2020-08-12T21:20:00Z'), ('event_materializer', '2020-08-12T21:30:00Z'), ('event_materializer', '2020-08-12T21:40:00Z'), ('event_materializer', '2020-08-12T21:50:00Z'), ('event_materializer', '2020-08-12T22:00:00Z'), ('event_materializer', '2020-08-12T22:10:00Z'), ('event_materializer', '2020-08-12T22:20:00Z'), ('event_materializer', '2020-08-12T22:30:00Z'), ('event_materializer', '2020-08-12T22:40:00Z'), ('event_materializer', '2020-08-12T22:50:00Z'), ('event_materializer', '2020-08-12T23:00:00Z'), ('event_materializer', '2020-08-12T23:10:00Z'), ('event_materializer', '2020-08-12T23:20:00Z'), ('event_materializer', '2020-08-12T23:30:00Z'), ('event_materializer', '2020-08-12T23:40:00Z'), ('event_materializer', '2020-08-12T23:50:00Z'), ('event_materializer', '2020-08-13T00:00:00Z'), ('event_materializer', '2020-08-13T00:10:00Z'), ('event_materializer', '2020-08-13T00:20:00Z'), ('event_materializer', '2020-08-13T00:30:00Z'), ('event_materializer', '2020-08-13T00:40:00Z'), ('event_materializer', '2020-08-13T00:50:00Z'), ('event_materializer', '2020-08-13T01:00:00Z'), ('event_materializer', '2020-08-13T01:10:00Z'), ('event_materializer', '2020-08-13T01:20:00Z'), ('event_materializer', '2020-08-13T01:30:00Z'), ('event_materializer', '2020-08-13T01:40:00Z'), ('event_materializer', '2020-08-13T01:50:00Z'), ('event_materializer', '2020-08-13T02:00:00Z'), ('event_materializer', '2020-08-13T02:10:00Z'), ('event_materializer', '2020-08-13T02:20:00Z'), ('event_materializer', '2020-08-13T02:30:00Z'), ('event_materializer', '2020-08-13T02:40:00Z'), ('event_materializer', '2020-08-13T02:50:00Z'), ('event_materializer', '2020-08-13T03:00:00Z'), ('event_materializer', '2020-08-13T03:10:00Z'), ('event_materializer', '2020-08-13T03:20:00Z'), ('event_materializer', '2020-08-13T03:30:00Z'), ('event_materializer', '2020-08-13T03:40:00Z'), ('event_materializer', '2020-08-13T03:50:00Z'), ('event_materializer', '2020-08-13T04:00:00Z'), ('event_materializer', '2020-08-13T04:10:00Z'), ('event_materializer', '2020-08-13T04:20:00Z'), ('event_materializer', '2020-08-13T04:30:00Z'), ('event_materializer', '2020-08-13T04:40:00Z'), ('event_materializer', '2020-08-13T04:50:00Z'), ('event_materializer', '2020-08-13T05:00:00Z'), ('event_materializer', '2020-08-13T05:10:00Z'), ('event_materializer', '2020-08-13T05:20:00Z'), ('event_materializer', '2020-08-13T05:30:00Z'), ('event_materializer', '2020-08-13T05:40:00Z'), ('event_materializer', '2020-08-13T05:50:00Z'), ('event_materializer', '2020-08-13T06:00:00Z'), ('event_materializer', '2020-08-13T06:10:00Z'), ('event_materializer', '2020-08-13T06:20:00Z'), ('event_materializer', '2020-08-13T06:30:00Z'), ('event_materializer', '2020-08-13T06:40:00Z'), ('event_materializer', '2020-08-13T06:50:00Z'), ('event_materializer', '2020-08-13T07:00:00Z'), ('event_materializer', '2020-08-13T07:10:00Z'), ('event_materializer', '2020-08-13T07:20:00Z'), ('event_materializer', '2020-08-13T07:30:00Z'), ('event_materializer', '2020-08-13T07:40:00Z'), ('event_materializer', '2020-08-13T07:50:00Z'), ('event_materializer', '2020-08-13T08:00:00Z'), ('event_materializer', '2020-08-13T08:10:00Z'), ('event_materializer', '2020-08-13T08:20:00Z'), ('event_materializer', '2020-08-13T08:30:00Z'), ('event_materializer', '2020-08-13T08:40:00Z'), ('event_materializer', '2020-08-13T08:50:00Z'), ('event_materializer', '2020-08-13T09:00:00Z'), ('event_materializer', '2020-08-13T09:10:00Z'), ('event_materializer', '2020-08-13T09:20:00Z'), ('event_materializer', '2020-08-13T09:30:00Z'), ('event_materializer', '2020-08-13T09:40:00Z'), ('event_materializer', '2020-08-13T09:50:00Z'), ('event_materializer', '2020-08-13T10:00:00Z'), ('event_materializer', '2020-08-13T10:10:00Z'), ('event_materializer', '2020-08-13T10:20:00Z'), ('event_materializer', '2020-08-13T10:30:00Z') ON CONFLICT DO NOTHING ",
    "prepared": false,
    "error": {
        "exec_status": "FatalError",
        "hint": null,
        "message": "null value in column \"id\" violates not-null constraint",
        "status_code": "23502",
        "description": "Failing row contains (null, event_materializer, 2020-08-12 18:00:00+00, scheduled, 0, 2020-08-12 17:52:16.068624, null)."
    },
    "arguments": []
}

【问题讨论】：

看来你可能一直在打这个：github.com/hasura/graphql-engine/issues/4009。
确实 4009 来自 github 上的开发人员。这是通过返回并追溯修复在 postgres 中删除公共模式的迁移来解决的。一旦清除了一切，一切就又开始工作了。后人链接github.com/hasura/graphql-engine/issues/5573

标签： eventtrigger hasura

【解决方案1】：

根本原因是在此数据库上进行了一次迁移

DROP SCHEMA public CASCADE;

级联看到在非公共模式中存在使用 pycrypto 函数的表。由于 pycrypto 安装在公共架构中，它删除了该函数，由于 hasura 的架构使用这些函数作为列默认值，它实际上修改了 hasura 表的 DDL 以删除列的 DEFAULT 值。

真的很阴险，追查它浪费了很多时间。过去的你好！

https://github.com/hasura/graphql-engine/issues/5573

【讨论】：