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fix(notifications): improve error handling (#8994)

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# Which Problems Are Solved

While running the latest RC / main, we noticed some errors including
context timeouts and rollback issues.

# How the Problems Are Solved

- The transaction context is passed and used for any event being written
and for handling savepoints to be able to handle context timeouts.
- The user projection is not triggered anymore. This will reduce
unnecessary load and potential timeouts if lot of workers are running.
In case a user would not be projected yet, the request event will log an
error and then be skipped / retried on the next run.
- Additionally, the context is checked if being closed after each event
process.
- `latestRetries` now correctly only returns the latest retry events to
be processed
- Default values for notifications have been changed to run workers less
often, more retry delay, but less transaction duration.

# Additional Changes

None

# Additional Context

relates to #8931

---------

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>
This commit is contained in:
Livio Spring
2024-12-04 21:17:49 +01:00
committed by GitHub
parent 6614aacf78
commit 7f0378636b
3 changed files with 46 additions and 41 deletions
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10
cmd/defaults.yaml
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@@ -456,13 +456,13 @@ Notifications:
# The amount of events a single worker will process in a run.
BulkLimit: 10 # ZITADEL_NOTIFIACATIONS_BULKLIMIT
# Time interval between scheduled notifications for request events
RequeueEvery: 2s # ZITADEL_NOTIFIACATIONS_REQUEUEEVERY
RequeueEvery: 5s # ZITADEL_NOTIFIACATIONS_REQUEUEEVERY
# The amount of workers processing the notification retry events.
# If set to 0, no notification retry events will be handled. This can be useful when running in
# multi binary / pod setup and allowing only certain executables to process the events.
RetryWorkers: 1 # ZITADEL_NOTIFIACATIONS_RETRYWORKERS
# Time interval between scheduled notifications for retry events
RetryRequeueEvery: 2s # ZITADEL_NOTIFIACATIONS_RETRYREQUEUEEVERY
RetryRequeueEvery: 5s # ZITADEL_NOTIFIACATIONS_RETRYREQUEUEEVERY
# Only instances are projected, for which at least a projection-relevant event exists within the timeframe
# from HandleActiveInstances duration in the past until the projection's current time
# If set to 0 (default), every instance is always considered active
@@ -470,15 +470,15 @@ Notifications:
# The maximum duration a transaction remains open
# before it spots left folding additional events
# and updates the table.
TransactionDuration: 1m # ZITADEL_NOTIFIACATIONS_TRANSACTIONDURATION
TransactionDuration: 10s # ZITADEL_NOTIFIACATIONS_TRANSACTIONDURATION
# Automatically cancel the notification after the amount of failed attempts
MaxAttempts: 3 # ZITADEL_NOTIFIACATIONS_MAXATTEMPTS
# Automatically cancel the notification if it cannot be handled within a specific time
MaxTtl: 5m # ZITADEL_NOTIFIACATIONS_MAXTTL
# Failed attempts are retried after a confogired delay (with exponential backoff).
# Set a minimum and maximum delay and a factor for the backoff
MinRetryDelay: 1s # ZITADEL_NOTIFIACATIONS_MINRETRYDELAY
MaxRetryDelay: 20s # ZITADEL_NOTIFIACATIONS_MAXRETRYDELAY
MinRetryDelay: 5s # ZITADEL_NOTIFIACATIONS_MINRETRYDELAY
MaxRetryDelay: 1m # ZITADEL_NOTIFIACATIONS_MAXRETRYDELAY
# Any factor below 1 will be set to 1
RetryDelayFactor: 1.5 # ZITADEL_NOTIFIACATIONS_RETRYDELAYFACTOR