我正在使用 Python 线程执行从 Python 运行 60 个并行进程的数据迁移任务。
过了一会儿,PG崩溃了,看PG日志文件的结尾:
2021-11-17 09:30:09.973 CET [19372] FATAL: terminating connection due to unexpected postmaster exit
2021-11-17 09:30:09.973 CET [17944] FATAL: terminating connection due to unexpected postmaster exit
2021-11-17 09:30:09.973 CET [16628] FATAL: terminating connection due to unexpected postmaster exit
2021-11-17 09:30:09.973 CET [19508] FATAL: terminating connection due to unexpected postmaster exit
2021-11-17 09:30:09.973 CET [21636] FATAL: postmaster exited during a parallel transaction
2021-11-17 09:30:09.973 CET [21636] CONTEXT: SQL statement "......"
PL/pgSQL function swn.nearest_pgr_node(geometry,numeric) line 7 at SQL statement
SQL statement "select swn.nearest_pgr_node(structure_end_geom, 2.0)"
PL/pgSQL function swn.migrate_cable(character varying) line 316 at SQL statement
2021-11-17 09:30:09.973 CET [21636] STATEMENT: select swn.migrate_cable('{F97554BF-59BA-44D6-9D70-DD9B6B5927EA}')
2021-11-17 09:30:09.973 CET [17944] FATAL: could not duplicate handle for "Global/PostgreSQL.2398935412": Permission denied
2021-11-17 09:30:11.227 CET [14284] FATAL: terminating connection due to unexpected postmaster exit
有没有人知道问题是什么?我正在使用本地磁盘的物理 Windows 服务器上运行它。PG 版本 14。
感谢您的任何意见。谷歌搜索这个问题并没有给我任何有用的提示。
上面的 SQL 代码(“......”)是
2021-11-17 09:30:09.973 CET [21636] CONTEXT: SQL statement "with ptest as
(
(select the_geom as point, id as id
from swn.pni_route_vertices_pgr
where st_distance(the_geom, _point) < _dist)
)
SELECT
closest_route.id FROM ptest p1
CROSS JOIN LATERAL
(SELECT
id,
st_closestpoint(p2.point, _point) as nearest_point,
ST_Distance(_point, p2.point) as dist
FROM ptest p2
ORDER BY _point <-> p2.point
LIMIT 1
) AS closest_route
order by 1"
PL/pgSQL function swn.nearest_pgr_node(geometry,numeric) line 7 at SQL statement
SQL statement "select swn.nearest_pgr_node(structure_end_geom, 2.0)"
PL/pgSQL function swn.migrate_cable(character varying) line 316 at SQL statement
2021-11-17 09:30:09.973 CET [21636] STATEMENT: select swn.migrate_cable('{F97554BF-59BA-44D6-9D70-DD9B6B5927EA}')
我浏览了我的 PG 日志文件以查找此错误,结果发现,每次都在相同的代码上崩溃。
安装的扩展:
- pg_routing
- plpgsql
- 地理信息系统
- postgis_sfcgal
- uuid-ossp