编写代码后，当我运行pgloader脚本时，它将以这种方式失败：
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_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://jobs_client2@127.0.0.1:3306/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.
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我尝试摆弄参数，有人可以在这个问题上提供帮助吗？