编写代码后，当我运行pgloader脚本时，它会以这种方式失败：
load database
from mysql://xxx:yyy127.0.0.1/zzz
into pgsql://xxx:yyy@localhost/zzz
including only table names matching 'TABLE'
with
data only,
create no tables, preserve index names,
batch rows = 1000,
batch size = 500 MB,
prefetch rows = 1000
-- on error stop,
set work_mem to '2048 MB', maintenance_work_mem to '4096 MB';
-- before load do $$ drop schema if exists jobs cascade; $$;
我收到此错误消息，但这是间歇性的，也就是说，它并不总是发生，并且我不确定要输入什么参数。我有很多公羊，每条记录大约50kb。
2020-05-25T04:28:14.194000Z INFO Incomplete Foreign Key definition: constraint "fk_job_currency1" on table "jobs2_beta2.job" referencing table NIL
2020-05-25T04:28:14.194000Z INFO Incomplete Foreign Key definition: constraint "fk_job_job_category1" on table "jobs2_beta2.job" referencing table NIL
2020-05-25T04:28:14.194000Z INFO Incomplete Foreign Key definition: constraint "fk_job_organization1" on table "jobs2_beta2.job" referencing table NIL
2020-05-25T04:28:14.194000Z INFO Incomplete Foreign Key definition: constraint "fk_job_resource1" on table "jobs2_beta2.job" referencing table NIL
2020-05-25T04:28:14.194000Z INFO Incomplete Foreign Key definition: constraint "fk_job_user1" on table "jobs2_beta2.job" referencing table NIL
2020-05-25T04:28:14.198000Z SQL MySQL: sending query: -- params: db-name
-- table-type-name
-- only-tables
-- only-tables
-- including
-- filter-list-to-where-clause incuding
-- excluding
-- filter-list-to-where-clause excluding
SELECT table_name, index_name, index_type,
sum(non_unique),
cast(GROUP_CONCAT(column_name order by seq_in_index) as char)
FROM information_schema.statistics
WHERE table_schema = 'jobs2_beta2'
and (table_name = 'job')
GROUP BY table_name, index_name, index_type;
2020-05-25T04:28:14.225000Z INFO Processing source catalogs
2020-05-25T04:28:14.272000Z NOTICE Prepare PostgreSQL database.
2020-05-25T04:28:14.275000Z DEBUG CONNECTED TO #<PGLOADER.PGSQL:PGSQL-CONNECTION pgsql://ziprecruiter@localhost:5432/ziprecruiter {1006A2A683}>
2020-05-25T04:28:14.275000Z DEBUG SET client_encoding TO 'utf8'
2020-05-25T04:28:14.275000Z DEBUG SET work_mem TO '1024 MB'
2020-05-25T04:28:14.276000Z DEBUG SET maintenance_work_mem TO '4096 MB'
2020-05-25T04:28:14.276000Z DEBUG SET application_name TO 'pgloader'
2020-05-25T04:28:14.280000Z DEBUG BEGIN
2020-05-25T04:28:14.314000Z SQL DROP TABLE IF EXISTS jobs2_beta2.job CASCADE;
2020-05-25T04:28:15.316000Z SQL CREATE TABLE jobs2_beta2.job
(
id bigserial not null,
resource_id bigint not null,
url text not null,
job_title text,
html_job_description text,
text_job_description text,
last_crawl_date timestamptz,
first_indexed_date timestamptz,
job_category_id bigint not null,
currency_id bigint not null,
salary_exact double precision,
salary_is_range smallint,
salary_range_start double precision,
salary_range_end double precision,
address text,
source_program varchar(255),
organization varchar(255),
organization_count bigint,
expiration_date timestamptz,
is_sponsored smallint,
is_hidden smallint,
educational_requirements text,
experience_requirements text,
destination text,
organization_id bigint not null,
user_id bigint not null,
is_expired smallint,
salary_periodicity varchar(255),
json_schema text,
clean_job_description text,
estimated_job_category varchar(255)
);
2020-05-25T04:28:15.326000Z SQL -- params: table-names
select n, n::regclass::oid
from (values ('jobs2_beta2.job')) as t(n);
2020-05-25T04:28:15.392000Z NOTICE COPY jobs2_beta2.job
2020-05-25T04:28:15.392000Z DEBUG Reader started for jobs2_beta2.job
2020-05-25T04:28:15.405000Z DEBUG start jobs2_beta2.job 1400
2020-05-25T04:28:15.407000Z INFO COPY ON ERROR STOP
2020-05-25T04:28:15.408000Z DEBUG CONNECTED TO #<MYSQL-CONNECTION mysql://[email protected]:3306/jobs2_beta2 {100A4E61B3}>
2020-05-25T04:28:15.408000Z SQL MySQL: sending query: SELECT `id`, `resource_id`, `url`, `job_title`, `html_job_description`, `text_job_description`, `last_crawl_date`, `first_indexed_date`, `job_category_id`, `currency_id`, `salary_exact`, `salary_is_range`, `salary_range_start`, `salary_range_end`, `address`, `source_program`, `organization`, `organization_count`, `expiration_date`, `is_sponsored`, `is_hidden`, `educational_requirements`, `experience_requirements`, `destination`, `organization_id`, `user_id`, `is_expired`, `salary_periodicity`, `json_schema`, `clean_job_description`, `estimated_job_category` FROM `job`
2020-05-25T04:28:15.416000Z DEBUG CONNECTED TO #<PGLOADER.PGSQL:PGSQL-CONNECTION pgsql://ziprecruiter@localhost:5432/ziprecruiter {100A8C11A3}>
2020-05-25T04:28:15.416000Z DEBUG SET client_encoding TO 'utf8'
2020-05-25T04:28:15.416000Z DEBUG SET work_mem TO '1024 MB'
2020-05-25T04:28:15.416000Z DEBUG SET maintenance_work_mem TO '4096 MB'
2020-05-25T04:28:15.416000Z DEBUG SET application_name TO 'pgloader'
2020-05-25T04:28:15.416000Z SQL SET search_path TO jobs2_beta2;
2020-05-25T04:28:15.417000Z INFO pgsql:copy-rows-from-queue[0]: jobs2_beta2.job (id resource_id url job_title
html_job_description
text_job_description
last_crawl_date
first_indexed_date
job_category_id currency_id
salary_exact salary_is_range
salary_range_start
salary_range_end address
source_program organization
organization_count
expiration_date is_sponsored
is_hidden
educational_requirements
experience_requirements
destination organization_id
user_id is_expired
salary_periodicity json_schema
clean_job_description
estimated_job_category)
Gen Boxed Unboxed LgBox LgUnbox Pin Alloc Waste Trig WP GCs Mem-age
0 0 0 0 0 0 0 0 42949672 0 0 0.0000
1 577 42719 0 36 5 1301487024 118415952 753961944 0 1 1.3187
2 1776 83008 25 60 65 2579123472 201863920 2000000 668 0 0.8672
3 0 0 0 0 0 0 0 2000000 0 0 0.0000
4 0 0 0 0 0 0 0 2000000 0 0 0.0000
5 0 0 0 0 0 0 0 2000000 0 0 0.0000
6 1593 1278 0 0 0 90993120 3083808 2000000 1501 0 0.0000
7 0 0 0 0 0 0 0 2000000 0 0 0.0000
Total bytes allocated = 3971603616
Dynamic-space-size bytes = 4294967296
GC control variables:
*GC-INHIBIT* = true
*GC-PENDING* = true
*STOP-FOR-GC-PENDING* = false
fatal error encountered in SBCL pid 9514(tid 0x7ffff492f700):
Heap exhausted, game over.
Welcome to LDB, a low-level debugger for the Lisp runtime environment.
ldb>
我尝试摆弄内存中的参数，有人可以在此问题上提供帮助吗？
发现与“堆耗尽，游戏结束”相关的github问题，可能会有所帮助。