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Elaborate on 502 gateway error

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krish7919 (Krish) 2017-09-27 11:17:13 +02:00 committed by Krish
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1 changed files with 10 additions and 3 deletions
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13
docs/server/source/production-deployment-template/troubleshoot.rst
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@ -29,9 +29,16 @@ TODO: paste the error message the next time this error happens!
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It means that NGINX could not find the appropriate backed to forward the
requests to. This typically happens when MongoDB goes down (as described above)
and BigchainDB, after trying for ``BIGCHAINDB_DATABASE_MAXTRIES`` times, gives
up. The Kubernetes BigchainDB Deployment then restarts the BigchainDB pod.
requests to. This typically happens when:
#. MongoDB goes down (as described above) and BigchainDB, after trying for
``BIGCHAINDB_DATABASE_MAXTRIES`` times, gives up. The Kubernetes BigchainDB
Deployment then restarts the BigchainDB pod.
#. BigchainDB crashes for some reason. We have seen this happen when updating
BigchainDB from one version to the next. This usually means the older
connections to the service gets disconnected; retrying the request one more
time, forwards the connection to the new instance and succeed.
3. Service Unreachable