Public bug reported:

openstack version :V

phenomenon:
The query images is not returned.

telnet ip 9292 ,is ok

curl ip:9292 ,no response.

glance-api:logs

2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/sqlalchemy/engine/base.py", 
line 1276, in _execute_context
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
self.dialect.do_execute(
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/sqlalchemy/engine/default.py", 
line 593, in do_execute
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
cursor.execute(statement, parameters)
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/cursors.py", line 163, 
in execute
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     result = 
self._query(query)
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/cursors.py", line 321, 
in _query
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     conn.query(q)
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
505, in query
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
724, in _read_query_result
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     result.read()
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
1069, in read
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     first_packet = 
self.connection._read_packet()
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
646, in _read_packet
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     packet_header = 
self._read_bytes(4)
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
698, in _read_bytes
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     raise 
err.OperationalError(
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines 
oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 
'Lost connection to MySQL server during query')
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines [SQL: SELECT 1]
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines (Background on this 
error at: http://sqlalche.me/e/13/e3q8)
2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines
2021-08-12 07:22:34.084 47 INFO glance.domain [-] Task 
[0e45d62c-3670-42b8-9fd3-bfd064c35a78] status changing from pendingto processing
2021-08-12 07:22:37.837 47 INFO glance.common.scripts.image_import.main [-] 
Task 0e45d62c-3670-42b8-9fd3-bfd064c35a78: Gotimage data uri 
file:///tmp/staging/3decd27d-b895-4471-9634-03ee1378bab2 to be imported
2021-08-12 07:22:38.081 47 WARNING glance_store._drivers.rbd [-] Since image 
size is zero we will be doing resize-before-write which will be slower than 
normal
2021-08-12 07:22:45.863 47 INFO glance.location [-] Image format matched and 
virtual size computed: 42949672960
2021-08-12 07:22:46.861 47 INFO glance.domain [-] Task 
[0e45d62c-3670-42b8-9fd3-bfd064c35a78] status changing from processing to 
success
2021-08-12 07:22:47.011 47 INFO glance.async_.flows.api_image_import [-] 
0e45d62c-3670-42b8-9fd3-bfd064c35a78 of api_image_import completed
2021-08-12 07:55:30.629 47 INFO glance.domain [-] Task 
[08636c18-8dea-4268-9301-bd899328b484] status changing from pendingto processing
2021-08-12 07:55:31.682 47 INFO glance.common.scripts.image_import.main [-] 
Task 08636c18-8dea-4268-9301-bd899328b484: Gotimage data uri 
file:///tmp/staging/ee85cc10-6ac6-4645-9404-c70ab56559ca to be imported
2021-08-12 07:55:32.066 47 WARNING glance_store._drivers.rbd [-] Since image 
size is zero we will be doing resize-before-write which will be slower than 
normal
2021-08-12 07:55:33.393 47 INFO glance.location [-] Image format matched and 
virtual size computed: 22
2021-08-12 07:55:35.629 47 INFO glance.domain [-] Task 
[08636c18-8dea-4268-9301-bd899328b484] status changing from processing to 
success
2021-08-12 07:55:37.074 47 INFO glance.async_.flows.api_image_import [-] 
08636c18-8dea-4268-9301-bd899328b484 of api_image_import completed

** Affects: glance
     Importance: Undecided
         Status: New

** Description changed:

  openstack version :V
  
  phenomenon:
  The query images is not returned.
  
  telnet ip 9292 ,is ok
  
- curl ip:9291 ,no response.
- 
+ curl ip:9292 ,no response.
  
  glance-api:logs
  
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/sqlalchemy/engine/base.py", 
line 1276, in _execute_context
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
self.dialect.do_execute(
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/sqlalchemy/engine/default.py", 
line 593, in do_execute
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
cursor.execute(statement, parameters)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/cursors.py", line 163, 
in execute
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     result = 
self._query(query)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/cursors.py", line 321, 
in _query
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     conn.query(q)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
505, in query
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
724, in _read_query_result
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     result.read()
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
1069, in read
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     first_packet 
= self.connection._read_packet()
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
646, in _read_packet
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     packet_header 
= self._read_bytes(4)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
698, in _read_bytes
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     raise 
err.OperationalError(
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines 
oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 
'Lost connection to MySQL server during query')
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines [SQL: SELECT 1]
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines (Background on 
this error at: http://sqlalche.me/e/13/e3q8)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines
  2021-08-12 07:22:34.084 47 INFO glance.domain [-] Task 
[0e45d62c-3670-42b8-9fd3-bfd064c35a78] status changing from pendingto processing
  2021-08-12 07:22:37.837 47 INFO glance.common.scripts.image_import.main [-] 
Task 0e45d62c-3670-42b8-9fd3-bfd064c35a78: Gotimage data uri 
file:///tmp/staging/3decd27d-b895-4471-9634-03ee1378bab2 to be imported
  2021-08-12 07:22:38.081 47 WARNING glance_store._drivers.rbd [-] Since image 
size is zero we will be doing resize-before-write which will be slower than 
normal
  2021-08-12 07:22:45.863 47 INFO glance.location [-] Image format matched and 
virtual size computed: 42949672960
  2021-08-12 07:22:46.861 47 INFO glance.domain [-] Task 
[0e45d62c-3670-42b8-9fd3-bfd064c35a78] status changing from processing to 
success
  2021-08-12 07:22:47.011 47 INFO glance.async_.flows.api_image_import [-] 
0e45d62c-3670-42b8-9fd3-bfd064c35a78 of api_image_import completed
  2021-08-12 07:55:30.629 47 INFO glance.domain [-] Task 
[08636c18-8dea-4268-9301-bd899328b484] status changing from pendingto processing
  2021-08-12 07:55:31.682 47 INFO glance.common.scripts.image_import.main [-] 
Task 08636c18-8dea-4268-9301-bd899328b484: Gotimage data uri 
file:///tmp/staging/ee85cc10-6ac6-4645-9404-c70ab56559ca to be imported
  2021-08-12 07:55:32.066 47 WARNING glance_store._drivers.rbd [-] Since image 
size is zero we will be doing resize-before-write which will be slower than 
normal
  2021-08-12 07:55:33.393 47 INFO glance.location [-] Image format matched and 
virtual size computed: 22
  2021-08-12 07:55:35.629 47 INFO glance.domain [-] Task 
[08636c18-8dea-4268-9301-bd899328b484] status changing from processing to 
success
  2021-08-12 07:55:37.074 47 INFO glance.async_.flows.api_image_import [-] 
08636c18-8dea-4268-9301-bd899328b484 of api_image_import completed

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https://bugs.launchpad.net/bugs/1939936

Title:
  The glance-api service runs but does not respond to requests

Status in Glance:
  New

Bug description:
  openstack version :V

  phenomenon:
  The query images is not returned.

  telnet ip 9292 ,is ok

  curl ip:9292 ,no response.

  glance-api:logs

  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/sqlalchemy/engine/base.py", 
line 1276, in _execute_context
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
self.dialect.do_execute(
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/sqlalchemy/engine/default.py", 
line 593, in do_execute
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
cursor.execute(statement, parameters)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/cursors.py", line 163, 
in execute
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     result = 
self._query(query)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/cursors.py", line 321, 
in _query
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     conn.query(q)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
505, in query
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
724, in _read_query_result
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     result.read()
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
1069, in read
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     first_packet 
= self.connection._read_packet()
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
646, in _read_packet
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     packet_header 
= self._read_bytes(4)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines   File 
"/var/lib/openstack/lib/python3.8/site-packages/pymysql/connections.py", line 
698, in _read_bytes
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines     raise 
err.OperationalError(
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines 
oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 
'Lost connection to MySQL server during query')
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines [SQL: SELECT 1]
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines (Background on 
this error at: http://sqlalche.me/e/13/e3q8)
  2021-08-11 07:38:11.764 47 ERROR oslo_db.sqlalchemy.engines
  2021-08-12 07:22:34.084 47 INFO glance.domain [-] Task 
[0e45d62c-3670-42b8-9fd3-bfd064c35a78] status changing from pendingto processing
  2021-08-12 07:22:37.837 47 INFO glance.common.scripts.image_import.main [-] 
Task 0e45d62c-3670-42b8-9fd3-bfd064c35a78: Gotimage data uri 
file:///tmp/staging/3decd27d-b895-4471-9634-03ee1378bab2 to be imported
  2021-08-12 07:22:38.081 47 WARNING glance_store._drivers.rbd [-] Since image 
size is zero we will be doing resize-before-write which will be slower than 
normal
  2021-08-12 07:22:45.863 47 INFO glance.location [-] Image format matched and 
virtual size computed: 42949672960
  2021-08-12 07:22:46.861 47 INFO glance.domain [-] Task 
[0e45d62c-3670-42b8-9fd3-bfd064c35a78] status changing from processing to 
success
  2021-08-12 07:22:47.011 47 INFO glance.async_.flows.api_image_import [-] 
0e45d62c-3670-42b8-9fd3-bfd064c35a78 of api_image_import completed
  2021-08-12 07:55:30.629 47 INFO glance.domain [-] Task 
[08636c18-8dea-4268-9301-bd899328b484] status changing from pendingto processing
  2021-08-12 07:55:31.682 47 INFO glance.common.scripts.image_import.main [-] 
Task 08636c18-8dea-4268-9301-bd899328b484: Gotimage data uri 
file:///tmp/staging/ee85cc10-6ac6-4645-9404-c70ab56559ca to be imported
  2021-08-12 07:55:32.066 47 WARNING glance_store._drivers.rbd [-] Since image 
size is zero we will be doing resize-before-write which will be slower than 
normal
  2021-08-12 07:55:33.393 47 INFO glance.location [-] Image format matched and 
virtual size computed: 22
  2021-08-12 07:55:35.629 47 INFO glance.domain [-] Task 
[08636c18-8dea-4268-9301-bd899328b484] status changing from processing to 
success
  2021-08-12 07:55:37.074 47 INFO glance.async_.flows.api_image_import [-] 
08636c18-8dea-4268-9301-bd899328b484 of api_image_import completed

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