Postgres 9.4.1，Ruby 2.2，Rails 4.2
基本上，我的pg_restore失败了。到目前为止，我做了很多工作来排除它（排除应用程序，heroku，连接）。这超出了我对Postgres的知识范围，我甚至不知道下一步该去哪里。我只能粘贴相关的日志文件，希望你能看到一些东西。有关如何实现这一目标的完整背景，请查看我的post here。但是，基于与用户abhishek77in的讨论，我们认为我们已将其隔离到Postgres，它可能与日志的这一部分有关（尽管我们不确定）：
Detail: Process 3977 waits for AccessExclusiveLock on relation 35169 of database 16385.
Query: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] process 3977 still waiting for AccessExclusiveLock on relation 35169 of database 16385 after 1000.367 ms
以下是heroku logs -t的输出：
015-08-10T02:55:04Z app[postgres.3977]: [GREEN] statement: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3675]: [GREEN] canceling autovacuum task
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] sending cancel to blocking autovacuum PID 3675
Detail: Process 3977 waits for AccessExclusiveLock on relation 35169 of database 16385.
Query: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] process 3977 still waiting for AccessExclusiveLock on relation 35169 of database 16385 after 1000.367 ms
Detail: Process holding the lock: 3675. Wait queue: 3977.
Query: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] process 3977 acquired AccessExclusiveLock on relation 35169 of database 16385 after 1000.779 ms
Query: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] drop cascades to 97 other objects
Detail: drop cascades to extension hstore
drop cascades to type daily_box_input
//<--84 tables, materialized views and views redacted for brevity-->//
drop cascades to table users
drop cascades to extension pg_stat_statements
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] statement: CREATE SCHEMA public
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] statement: ALTER SCHEMA public OWNER TO uca46vrebkj2l9
2015-08-10T02:54:33+00:00 app[heroku-postgres]: source=HEROKU_POSTGRESQL_GREEN sample#current_transaction=368590 sample#db_size=4203753236bytes sample#tables=83 sample#active-connections=3 sample#waiting-connections=0 sample#index-cache-hit-rate=0 sample#table-cache-hit-rate=0.66674 sample#load-avg-1m=0.45 sample#load-avg-5m=0.71 sample#load-avg-15m=0.66 sample#read-iops=17.058 sample#write-iops=498.2 sample#memory-total=15405668kB sample#memory-free=283204kB sample#memory-cached=14065608kB sample#memory-postgres=477864kB
2015-08-10T02:55:57.359270+00:00 heroku[router]: at=info code=H80 desc="Maintenance mode" method=GET path="/" host=www.studiocomps.com request_id=e0d6bbd7-076f-4a56-93a1-2f80a45d28c4 fwd="74.86.158.110" dyno= connect= service= status=503 bytes=
2015-08-10T02:56:02Z app[postgres.4009]: [GREEN] statement: CREATE EXTENSION IF NOT EXISTS pg_stat_statements
2015-08-10T02:56:03.118589+00:00 heroku[router]: at=info code=H80 desc="Maintenance mode" method=GET path="/" host=test.studiocomps.com request_id=25fbbab0-8005-454c-b432-0f9b91cd5a75 fwd="69.64.56.47" dyno= connect= service= status=503 bytes=
2015-08-10T02:55:43+00:00 app[heroku-postgres]: source=HEROKU_POSTGRESQL_GREEN sample#current_transaction=368608 sample#db_size=9137940bytes sample#tables=0 sample#active-connections=2 sample#waiting-connections=0 sample#index-cache-hit-rate=0 sample#table-cache-hit-rate=0 sample#load-avg-1m=0.625 sample#load-avg-5m=0.7 sample#load-avg-15m=0.66 sample#read-iops=234.98 sample#write-iops=226.24 sample#memory-total=15405668kB sample#memory-free=4200392kB sample#memory-cached=10112136kB sample#memory-postgres=470496kB
以下是heroku logs -t --ps postgres的尾部输出：
2015-08-10T02:46:35Z app[postgres.2427]: [GREEN] duration: 3538.409 ms statement: COPY flows (id, created_at, updated_at, medium_id, value_subunit, timing_id, ultimate_ratio_id, sheet_id, company_id, value_to_date_subunit, period_start, period_end, currency_code, local_title, kind_id, theaters, screens, flowable_id, flowable_type) FROM stdin;
2015-08-10T02:47:15Z app[postgres.11]: [GREEN] checkpoint starting: xlog
2015-08-10T02:47:53Z app[postgres.11]: [GREEN] checkpoint complete: wrote 14930 buffers (47.8%); 0 transaction log file(s) added, 0 removed, 55 recycled; write=30.562 s, sync=7.386 s, total=38.138 s; sync files=219, longest=5.843 s, average=0.033 s
2015-08-10T02:47:57Z app[postgres.2829]: [GREEN] statement: CREATE EXTENSION IF NOT EXISTS pg_stat_statements
2015-08-10T02:48:13Z app[postgres.11]: [GREEN] checkpoint starting: xlog
2015-08-10T02:48:42Z app[postgres.11]: [GREEN] checkpoint complete: wrote 3766 buffers (12.1%); 0 transaction log file(s) added, 0 removed, 38 recycled; write=26.669 s, sync=1.943 s, total=28.658 s; sync files=36, longest=1.118 s, average=0.053 s
2015-08-10T02:49:11Z app[postgres.11]: [GREEN] checkpoint starting: xlog
2015-08-10T02:49:25Z app[postgres.11]: [GREEN] checkpoint complete: wrote 80 buffers (0.3%); 0 transaction log file(s) added, 0 removed, 26 recycled; write=2.021 s, sync=11.500 s, total=13.529 s; sync files=3, longest=6.301 s, average=3.833 s
2015-08-10T02:50:15Z app[postgres.11]: [GREEN] checkpoint starting: xlog
2015-08-10T02:50:20Z app[postgres.11]: [GREEN] checkpoint complete: wrote 81 buffers (0.3%); 0 transaction log file(s) added, 0 removed, 38 recycled; write=1.586 s, sync=3.825 s, total=5.477 s; sync files=2, longest=3.823 s, average=1.912 s
2015-08-10T02:51:08Z app[postgres.2427]: [GREEN] canceling statement due to user request
Query: COPY rankings (id, person_id, max, min, current, date, period_years_min_max, created_at, updated_at) FROM stdin;
2015-08-10T02:51:08Z app[postgres.2427]: [GREEN] could not receive data from client: Connection reset by peer
2015-08-10T02:51:08Z app[postgres.2427]: [GREEN] incomplete message from client
2015-08-10T02:51:27Z app[postgres.11]: [GREEN] checkpoint starting: xlog
2015-08-10T02:54:17Z app[postgres.11]: [GREEN] checkpoint complete: wrote 2098 buffers (6.7%); 0 transaction log file(s) added, 0 removed, 58 recycled; write=169.538 s, sync=0.952 s, total=170.500 s; sync files=11, longest=0.887 s, average=0.086 s
2015-08-10T02:55:04Z app[postgres.3977]: [GREEN] statement: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3675]: [GREEN] canceling autovacuum task
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] sending cancel to blocking autovacuum PID 3675
Detail: Process 3977 waits for AccessExclusiveLock on relation 35169 of database 16385.
Query: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] process 3977 still waiting for AccessExclusiveLock on relation 35169 of database 16385 after 1000.367 ms
Detail: Process holding the lock: 3675. Wait queue: 3977.
Query: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] process 3977 acquired AccessExclusiveLock on relation 35169 of database 16385 after 1000.779 ms
Query: DROP SCHEMA public CASCADE
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] drop cascades to 97 other objects
Detail: drop cascades to extension hstore
drop cascades to type daily_box_input
//<--84 tables, materialized views and views redacted for brevity-->//
drop cascades to table users
drop cascades to extension pg_stat_statements
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] statement: CREATE SCHEMA public
2015-08-10T02:55:05Z app[postgres.3977]: [GREEN] statement: ALTER SCHEMA public OWNER TO uca46vrebkj2l9
2015-08-10T02:56:02Z app[postgres.4009]: [GREEN] statement: CREATE EXTENSION IF NOT EXISTS pg_stat_statements