延迟作业服务在开始时间不到1小时后停止，并显示以下日志：
I, [2018-02-26T06:00:26.580458 #11439] INFO -- : 2018-02-26T06:00:26+0400: [Worker(delayed_job host:myhost pid:11439)] Starting job worker
I, [2018-02-26T06:00:26.664929 #11439] INFO -- : 2018-02-26T06:00:26+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41019) RUNNING
I, [2018-02-26T06:00:27.342994 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41019) COMPLETED after 0.6779
I, [2018-02-26T06:00:27.346526 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41020) RUNNING
I, [2018-02-26T06:00:27.470858 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41020) COMPLETED after 0.1242
I, [2018-02-26T06:00:27.474937 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41024) RUNNING
I, [2018-02-26T06:00:27.603043 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41024) COMPLETED after 0.1280
I, [2018-02-26T06:00:27.606702 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41025) RUNNING
I, [2018-02-26T06:00:27.725715 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41025) COMPLETED after 0.1189
I, [2018-02-26T06:00:27.728021 #11439] INFO -- : 2018-02-26T06:00:27+0400: [Worker(delayed_job host:myhost pid:11439)] 4 jobs processed at 3.4871 j/s, 0 failed
I, [2018-02-26T06:14:48.287220 #11439] INFO -- : 2018-02-26T06:14:48+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41027) RUNNING
I, [2018-02-26T06:14:48.414079 #11439] INFO -- : 2018-02-26T06:14:48+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41027) COMPLETED after 0.1267
I, [2018-02-26T06:14:48.416335 #11439] INFO -- : 2018-02-26T06:14:48+0400: [Worker(delayed_job host:myhost pid:11439)] 1 jobs processed at 7.3771 j/s, 0 failed
I, [2018-02-26T06:16:33.492435 #11439] INFO -- : 2018-02-26T06:16:33+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41028) RUNNING
I, [2018-02-26T06:16:33.613684 #11439] INFO -- : 2018-02-26T06:16:33+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41028) COMPLETED after 0.1211
I, [2018-02-26T06:16:33.615953 #11439] INFO -- : 2018-02-26T06:16:33+0400: [Worker(delayed_job host:myhost pid:11439)] 1 jobs processed at 7.8121 j/s, 0 failed
I, [2018-02-26T06:22:33.853678 #11439] INFO -- : 2018-02-26T06:22:33+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41030) RUNNING
I, [2018-02-26T06:22:33.967338 #11439] INFO -- : 2018-02-26T06:22:33+0400: [Worker(delayed_job host:myhost pid:11439)] Job ActiveJob::QueueAdapters::DelayedJobAdapter::JobWrapper (id=41030) COMPLETED after 0.1136
I, [2018-02-26T06:22:33.970307 #11439] INFO -- : 2018-02-26T06:22:33+0400: [Worker(delayed_job host:myhost pid:11439)] 1 jobs processed at 8.2735 j/s, 0 failed
I, [2018-02-26T06:38:24.595215 #11439] INFO -- : 2018-02-26T06:38:24+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQconsumeInput() server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:24.593926', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:24.593351' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:24.593398') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:38:29.597026 #11439] INFO -- : 2018-02-26T06:38:29+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:29.596061', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:29.595477' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:29.595524') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:38:34.598775 #11439] INFO -- : 2018-02-26T06:38:34+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:34.597856', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:34.597278' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:34.597325') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:38:39.600772 #11439] INFO -- : 2018-02-26T06:38:39+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:39.599713', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:39.599063' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:39.599110') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:38:44.602546 #11439] INFO -- : 2018-02-26T06:38:44+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:44.601568', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:44.601024' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:44.601072') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:38:49.604286 #11439] INFO -- : 2018-02-26T06:38:49+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:49.603369', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:49.602808' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:49.602863') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:38:54.606189 #11439] INFO -- : 2018-02-26T06:38:54+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:54.605111', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:54.604563' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:54.604613') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:38:59.608610 #11439] INFO -- : 2018-02-26T06:38:59+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:38:59.607243', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:38:59.606483' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:38:59.606539') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:39:04.610465 #11439] INFO -- : 2018-02-26T06:39:04+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:39:04.609457', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:39:04.608876' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:39:04.608926') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
I, [2018-02-26T06:39:09.612201 #11439] INFO -- : 2018-02-26T06:39:09+0400: [Worker(delayed_job host:myhost pid:11439)] Error while reserving job: PG::ConnectionBad: PQsocket() can't get socket descriptor: UPDATE "delayed_jobs" SET locked_at = '2018-02-26 02:39:09.611263', locked_by = 'delayed_job host:myhost pid:11439' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2018-02-26 02:39:09.610721' AND (locked_at IS NULL OR locked_at < '2018-02-25 22:39:09.610770') OR locked_by = 'delayed_job host:myhost pid:11439') AND failed_at IS NULL) ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
的database.yml
production:
adapter: postgresql
encoding: unicode
database: myapp
port: 5432
pool: 5
username: username
password: password
reconnect: true
任何人都可以解释这个错误的原因以及如何避免它：
Error while reserving job: PG::ConnectionBad: PQconsumeInput() server closed the connection unexpectedly
更新
我认为这个问题与延迟的工作无关，因为我在做一些正常的数据库查询时遇到了同样的错误。所以DB因为某些原因正在重新启动，这就是为什么延迟工作服务停止了。
根据@LaurenzAlbe的评论，以下是/var/log/postgresql/postgresql-9.3-main.log中发现的一些问题：
LOG: connection received: host=10.10.10.15 port=57322
LOG: replication connection authorized: user=MyDBUser
FATAL: must be superuser or replication role to start walsender
LOG: could not receive data from client: Connection reset by peer
LOG: disconnection: session time: 0:06:18.911 user=MyDBUser database=MyDB host=127.0.0.1 port=34040
./systemd: 36: kill: Operation not permitted
WARNING: skipping "delayed_jobs" --- only table or database owner can analyze it
答案 0 :(得分：1)
经过一些研究，我相信延迟的作业存在内存泄漏问题，可以使用config.cache_classes = true解决此问题，因为延迟的作业会不时地重新加载类。
我有一个问题，即延迟的工作进程占用了90％以上的内存，即使我已经缓存了类，它也因相同的错误而崩溃，但是我正在运行没有RAILS_ENV的延迟的工作，这导致了它们会加载到开发中，而忽略其他环境设置。