Date | ||
Authors | ||
Status | In progress | |
Summary | ||
Impact |
Non-technical Description
Trigger
Exceptions reported via Slack
Detection
Sentry alerting
Resolution
Timeline
BST unless otherwise stated
2022-08-01 16:11 ESR processing failed messages start appearing on Slack #monitoring-esr channel
2022-08-01 16:30ish ESR processes on Prod blue and green stopped
2022-08-01 16:32ish Prod MongoDB server stopped
2022-08-01 18:24 Prod MongoDB server started
2022-08-01 20:43 All ESR processes restarted in defined order
Root Cause(s)
Action Items
Action Items | Owner |
|---|---|
Look at list of CSV files that were received (as per esr.queue.csv.invalid and any others subsequent to stopping the ESR services that would have not been processed at all because the services were stopped) | |
Review RabbitMQ esr.dlq.all messages [to identify any issues (such as?)] | |
Generate some Neo4J queries to check if a given {message id} was processed despite being in the DLQ | |
Once turned-on MongoDB - check which files exported to ESR today, that they were processed before 16:11 failure | |
Manually resend rabbit messages for reprocessing (excluding any found in neo4j that were processed despite being in the DLQ) | Joseph (Pepe) Kelly Whilst verifying sucessful replay of first found that it was aready queued. Message IDs: 1db2f10c-2400-4a16-83bb-440d9962091e REPLAYED but UNNEEDED |
Restart ESR services (instructions for sequencing for this are here: https://hee-nhs-tis.slack.com/archives/C01C7V5GT43/p1612957581030400 ) | |
Consider: for the position, placement and post queues, it is possible that create+delete messages will be processed in the incorrect order. Is there a way to check this? | |
Work out how to retrigger file processing (as per list of CSV files to be reprocessed that will be found in S3 bucket and others that were not processed at all and were received after 16:11) DE_SEV_RMC_20220730_00001157.DAT (16:10:36) DE_SEV_RMC_20220731_00001158.DAT (16:11:00) DE_WES_RMC_20220729_00003589.DAT DE_WES_RMC_20220730_00003590.DAT DE_WES_RMC_20220731_00003591.DAT (16:12:40) DE_WMD_RMC_20220729_00003421.DAT DE_WMD_RMC_20220730_00003422.DAT DE_WMD_RMC_20220731_00003423.DAT DE_YHD_RMC_20220729_00003512.DAT DE_YHD_RMC_20220730_00003513.DAT DE_YHD_RMC_20220731_00003514.DAT DE_SEV_RMC_20220729_00001156.DAT DE_EMD_RMC_20220801_00003116.DAT … DE_EOE_RMC_20220801_00003316.DAT | |
Later: Fix restart config for stage mongo & mongo_exporter services | |
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