Root
Cause Identified:
Root
cause remained unidentified as no issues were observed from Infra perspective
post VM resizing activity.
However,
it was learned during the troubleshooting call that client application team implemented
some change in application environment around 18th or 19th
Dec 2022, which might have caused the delay in data synchronization for MYSQL
database. Which in result was not even recorded in the schedule backups.
Important
events for detailed RCA:
With
the help of MS team Q-Weigh Prod server OS was rebooted using old Kernel,
post which VM and Q-Weigh application became accessible.
Post
restoration of production VM
(Qweighprd) – the GRInfra application team reported
issue that - inbound entries are visible in MYSQL database tables, however out
bound entries are not reflecting in the Q-weigh application since 5:28 pm IST
24th Dec 2022,
Noventiq
GDC Support team tried to restore the missing entries for MYSQL database
tables through VM backups taken for date 23rd, 25th and
27th Dec 2022, however outbound data entries were still not
reflecting in MYSQL database tables.
Noventiq
GDC Support team advised GRInfra application team to check the data synchronization
at their end. Lastly Application team suggested to restart the Q-Weigh Prod
server and confirmed once the inbound data entries will get updated sequentially,
the Outbound data entries will also get auto sequentially synchronized.