【发布时间】：2023-04-10 20:48:02
【问题描述】：
我们设置了一个由两台主机组成的 ejabberd 集群，在主机重启期间我们遇到了问题。 我们在登录时看到了不一致的数据库错误。但是，我们无法最终分析配置或 module_init 执行中的哪些内容可能实际导致该行为。 删除 node1 上的 mnesia 可能有助于解决问题。然而，出于管理目的，它并不可取。
希望请求审查以下数据以及一些配置和反馈，了解实际可能导致该行为的原因以及如何缓解该行为。
提前谢谢你。
环境配置如下：
- Ejabberd 版本：16.03
- 主机数量：2
- odbc_type : MySQL
错误记录：
** ERROR ** mnesia_event got {inconsistent_database, running_partitioned_network, other_node}
复制步骤：
- 重启node1
- 重启node2
注意：如果主机以相反的顺序重新启动，它不会重现。
MnesiaInfo：
在任一节点上似乎有两个具有不同条目大小和可能内容的模式： muc_online_room 和我们的自定义架构在下面重命名为 SCRUBBED_CUSTOM_FEATURE_SCHEMA_NAME：
节点1：
---> Processes holding locks <---
---> Processes waiting for locks <---
---> Participant transactions <---
---> Coordinator transactions <---
---> Uncertain transactions <---
---> Active tables <---
mod_register_ip: with 0 records occupying 299 words of mem
muc_online_room: with 348 records occupying 10757 words of mem
http_bind : with 0 records occupying 299 words of mem
carboncopy : with 0 records occupying 299 words of mem
oauth_token : with 0 records occupying 299 words of mem
session : with 0 records occupying 299 words of mem
session_counter: with 0 records occupying 299 words of mem
sql_pool : with 10 records occupying 439 words of mem
route : with 4 records occupying 405 words of mem
iq_response : with 0 records occupying 299 words of mem
temporarily_blocked: with 0 records occupying 299 words of mem
s2s : with 0 records occupying 299 words of mem
route_multicast: with 0 records occupying 299 words of mem
shaper : with 2 records occupying 321 words of mem
access : with 28 records occupying 861 words of mem
acl : with 6 records occupying 459 words of mem
local_config : with 32 records occupying 1293 words of mem
schema : with 19 records occupying 2727 words of mem
SCRUBBED_CUSTOM_FEATURE_SCHEMA_NAME : with 2457 records occupying 49953 words of mem
===> System info in version "4.12.5", debug level = none <===
opt_disc. Directory "SCRUBBED_LOCATION" is used.
use fallback at restart = false
running db nodes = [SCRUBBED_NODE2,SCRUBBED_NODE1]
stopped db nodes = []
master node tables = []
remote = []
ram_copies = [access,acl,carboncopy,http_bind,iq_response,
local_config,mod_register_ip,muc_online_room,route,
route_multicast,s2s,session,session_counter,shaper,
sql_pool,temporarily_blocked,SCRUBBED_CUSTOM_FEATURE_SCHEMA_NAME]
disc_copies = [oauth_token,schema]
disc_only_copies = []
[{'SCRUBBED_NODE1',disc_copies},
{'SCRUBBED_NODE2',disc_copies}] = [schema,
oauth_token]
[{'SCRUBBED_NODE1',ram_copies}] = [local_config,
acl,access,
shaper,
sql_pool,
mod_register_ip]
[{'SCRUBBED_NODE1',ram_copies},
{'SCRUBBED_NODE2',ram_copies}] = [route_multicast,
s2s,
temporarily_blocked,
iq_response,
route,
session_counter,
session,
carboncopy,
http_bind,
muc_online_room,
SCRUBBED_CUSTOM_FEATURE_SCHEMA_NAME]
2623 transactions committed, 35 aborted, 26 restarted, 60 logged to disc
0 held locks, 0 in queue; 0 local transactions, 0 remote
0 transactions waits for other nodes: []
ok
节点2：
mnesia:info().
---> Processes holding locks <---
---> Processes waiting for locks <---
---> Participant transactions <---
---> Coordinator transactions <---
---> Uncertain transactions <---
---> Active tables <---
mod_register_ip: with 0 records occupying 299 words of mem
muc_online_room: with 348 records occupying 8651 words of mem
http_bind : with 0 records occupying 299 words of mem
carboncopy : with 0 records occupying 299 words of mem
oauth_token : with 0 records occupying 299 words of mem
session : with 0 records occupying 299 words of mem
session_counter: with 0 records occupying 299 words of mem
route : with 4 records occupying 405 words of mem
sql_pool : with 10 records occupying 439 words of mem
iq_response : with 0 records occupying 299 words of mem
temporarily_blocked: with 0 records occupying 299 words of mem
s2s : with 0 records occupying 299 words of mem
route_multicast: with 0 records occupying 299 words of mem
shaper : with 2 records occupying 321 words of mem
access : with 28 records occupying 861 words of mem
acl : with 6 records occupying 459 words of mem
local_config : with 32 records occupying 1293 words of mem
schema : with 19 records occupying 2727 words of mem
SCRUBBED_CUSTOM_FEATURE_SCHEMA_NAME : with 2457 records occupying 38232 words of mem
===> System info in version "4.12.5", debug level = none <===
opt_disc. Directory "SCRUBBED_LOCATION" is used.
use fallback at restart = false
running db nodes = ['SCRUBBED_NODE1','SCRUBBED_NODE2']
stopped db nodes = []
master node tables = []
remote = []
ram_copies = [access,acl,carboncopy,http_bind,iq_response,
local_config,mod_register_ip,muc_online_room,route,
route_multicast,s2s,session,session_counter,shaper,
sql_pool,temporarily_blocked,SCRUBBED_CUSTOM_FEATURE_SCHEMA_NAME]
disc_copies = [oauth_token,schema]
disc_only_copies = []
[{'SCRUBBED_NODE1',disc_copies},
{'SCRUBBED_NODE2',disc_copies}] = [schema,
oauth_token]
[{'SCRUBBED_NODE1',ram_copies},
{'SCRUBBED_NODE2',ram_copies}] = [route_multicast,
s2s,
temporarily_blocked,
iq_response,
route,
session_counter,
session,
carboncopy,
http_bind,
muc_online_room,
SCRUBBED_CUSTOM_FEATURE_SCHEMA_NAME]
[{'SCRUBBED_NODE2',ram_copies}] = [local_config,
acl,access,
shaper,
sql_pool,
mod_register_ip]
2998 transactions committed, 18 aborted, 0 restarted, 99 logged to disc
0 held locks, 0 in queue; 0 local transactions, 0 remote
0 transactions waits for other nodes: []
ok
【问题讨论】：