Infrastructure monitoring and troubleshooting

[poliarush]

what to do if there is some issues on prod

[poliarush]

DB::Exception: Memory limit (total) exceeded

https://appsignal.com/testomatio/sites/611d2c787478202391730cb0/exceptions/incidents/1217/samples/last

ActiveRecord::ActiveRecordError: Response code: 500:
Code: 241. DB::Exception: Memory limit (total) exceeded: would use 1.75 GiB (attempt to allocate chunk of 17597632 bytes), maximum: 1.74 GiB: (avg_value_size_hint = 1024, avg_chars_size = 1219.2, limit = 8192): (while reading column object_changes): (while reading from part /var/lib/clickhouse/store/c31/c31c17b4-0aa1-4154-831c-17b40aa15154/all_3_582246_13593_2254/ from mark 0 with max_rows_to_read = 8192): While executing MergeTreeInOrder. (MEMORY_LIMIT_EXCEEDED) (version 22.2.2.1)

Solution

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Workaround

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