During our upgrade/migration off of vm: true environment, we've deployed a
service with definitions
runtime: python-compat
env: flexible
threadsafe: true
beta_settings:
enable_app_engine_apis: true
for 4 instances (manual scaling).
They are all accepting data from network, enqueue tasks to Task Queue, and
process tasks from the queue at a rapid pace.
*Since we changed to this environment, **every few minutes, there's a batch
of failed tasks, and after a retry, they all succeed.*
Can't see any clear failure in the logs, nor can find logs for specific
tasks that failed (log filters that used to work no longer work).
In the logs we see random Nginx warnings: "*452968 a client request body is
buffered to a temporary file {path}" - Is it related?
Memory usage is stable, CPU is stable at 30-40%.
It started a few hours after the version was up, while the load hasn't
increased or changed dramatically.
<https://lh3.googleusercontent.com/--6NxTmYoYb4/Wgm55ymVy-I/AAAAAAAAA3c/xEV9utLdMKIHyaOWmb77l4_F94Rv3T1mgCLcBGAs/s1600/Screen%2BShot%2B2017-11-13%2Bat%2B17.27.08.png>
We'll migrate to Cloud Tasks once it's more stable - but at the moment
we're stuck between Google turning off the ManagedVM and an environment in
alpha.
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