I can’t see something specific or errors in log except badgateway, that can help me to fix this issue.
==> /var/log/gitlab/gitlab-workhorse/current <==
{"correlation_id":"01FNKMNPYD7M7ZAXY1F8ER16T7","duration_ms":50002,"error":"badgateway: failed to receive response: context canceled","level":"error","method":"GET","msg":"","time":"2021-11-28T16:05:48Z","uri":"/"}
{"content_type":"text/html; charset=utf-8","correlation_id":"01FNKMNPYD7M7ZAXY1F8ER16T7","duration_ms":50002,"host":"git.muffs.ru","level":"info","method":"GET","msg":"access","proto":"HTTP/1.1","referrer":"","remote_addr":"127.0.0.1:0","remote_ip":"127.0.0.1","route":"","status":502,"system":"http","time":"2021-11-28T16:05:48Z","ttfb_ms":50002,"uri":"/","user_agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36","written_bytes":2940}
==> /var/log/gitlab/sidekiq/current <==
{"severity":"INFO","time":"2021-11-28T16:05:15.980Z","queue":"cronjob:user_status_cleanup_batch","args":[],"class":"UserStatusCleanup::BatchWorker","retry":0,"version":0,"queue_namespace":"cronjob","jid":"d32b3e039c98515f41308d9a","created_at":"2021-11-28T16:05:15.978Z","meta.caller_id":"Cronjob","meta.feature_category":"users","correlation_id":"fbab6c15b5d939c651178dae6dc53304","idempotency_key":"resque:gitlab:duplicate:cronjob:user_status_cleanup_batch:63596f84f2aa01599e5d284b58c5b497d0d152817e7aa09bae73984558ee32bf","enqueued_at":"2021-11-28T16:05:15.979Z","job_size_bytes":2,"pid":416,"message":"UserStatusCleanup::BatchWorker JID-d32b3e039c98515f41308d9a: start","job_status":"start","scheduling_latency_s":0.000978}
{"severity":"INFO","time":"2021-11-28T16:05:16.020Z","queue":"cronjob:user_status_cleanup_batch","args":[],"class":"UserStatusCleanup::BatchWorker","retry":0,"version":0,"queue_namespace":"cronjob","jid":"d32b3e039c98515f41308d9a","created_at":"2021-11-28T16:05:15.978Z","meta.caller_id":"Cronjob","meta.feature_category":"users","correlation_id":"fbab6c15b5d939c651178dae6dc53304","idempotency_key":"resque:gitlab:duplicate:cronjob:user_status_cleanup_batch:63596f84f2aa01599e5d284b58c5b497d0d152817e7aa09bae73984558ee32bf","enqueued_at":"2021-11-28T16:05:15.979Z","job_size_bytes":2,"pid":416,"message":"UserStatusCleanup::BatchWorker JID-d32b3e039c98515f41308d9a: done: 0.039638 sec","job_status":"done","scheduling_latency_s":0.000978,"redis_calls":2,"redis_duration_s":0.035593,"redis_read_bytes":2,"redis_write_bytes":202,"redis_queues_calls":2,"redis_queues_duration_s":0.035593,"redis_queues_read_bytes":2,"redis_queues_write_bytes":202,"db_count":1,"db_write_count":0,"db_cached_count":0,"cpu_s":0.002001,"mem_objects":902,"mem_bytes":104824,"mem_mallocs":148,"mem_total_bytes":140904,"duration_s":0.039638,"completed_at":"2021-11-28T16:05:16.020Z","db_duration_s":0.000709}
{"severity":"INFO","time":"2021-11-28T16:05:16.022Z","queue":"cronjob:database_batched_background_migration","args":[],"class":"Database::BatchedBackgroundMigrationWorker","retry":0,"version":0,"queue_namespace":"cronjob","jid":"556a7433de3714bf52123113","created_at":"2021-11-28T16:05:16.018Z","meta.caller_id":"Cronjob","meta.feature_category":"database","correlation_id":"5976ea7a214fb1d3982e2bf9314c8112","idempotency_key":"resque:gitlab:duplicate:cronjob:database_batched_background_migration:592d9619e1997b640b70ce6a22f6713bc7793bb7a4e342b7380d90b691fcd6ae","enqueued_at":"2021-11-28T16:05:16.020Z","job_size_bytes":2,"pid":416,"message":"Database::BatchedBackgroundMigrationWorker JID-556a7433de3714bf52123113: start","job_status":"start","scheduling_latency_s":0.001873}
{"severity":"INFO","time":"2021-11-28T16:05:16.029Z","queue":"cronjob:database_batched_background_migration","args":[],"class":"Database::BatchedBackgroundMigrationWorker","retry":0,"version":0,"queue_namespace":"cronjob","jid":"556a7433de3714bf52123113","created_at":"2021-11-28T16:05:16.018Z","meta.caller_id":"Cronjob","meta.feature_category":"database","correlation_id":"5976ea7a214fb1d3982e2bf9314c8112","idempotency_key":"resque:gitlab:duplicate:cronjob:database_batched_background_migration:592d9619e1997b640b70ce6a22f6713bc7793bb7a4e342b7380d90b691fcd6ae","enqueued_at":"2021-11-28T16:05:16.020Z","job_size_bytes":2,"pid":416,"message":"Database::BatchedBackgroundMigrationWorker JID-556a7433de3714bf52123113: done: 0.007573 sec","job_status":"done","scheduling_latency_s":0.001873,"redis_calls":3,"redis_duration_s":0.0014629999999999999,"redis_read_bytes":124,"redis_write_bytes":249,"redis_cache_calls":1,"redis_cache_duration_s":0.000382,"redis_cache_read_bytes":122,"redis_cache_write_bytes":35,"redis_queues_calls":2,"redis_queues_duration_s":0.001081,"redis_queues_read_bytes":2,"redis_queues_write_bytes":214,"db_count":1,"db_write_count":0,"db_cached_count":0,"cpu_s":0.002275,"mem_objects":1201,"mem_bytes":159880,"mem_mallocs":250,"mem_total_bytes":207920,"duration_s":0.007573,"completed_at":"2021-11-28T16:05:16.029Z","db_duration_s":0.000459}
{"severity":"INFO","time":"2021-11-28T16:05:16.030Z","queue":"cronjob:schedule_merge_request_cleanup_refs","args":[],"class":"ScheduleMergeRequestCleanupRefsWorker","retry":0,"version":0,"queue_namespace":"cronjob","jid":"ca97f9a3889feaa95bc84676","created_at":"2021-11-28T16:05:16.026Z","meta.caller_id":"Cronjob","meta.feature_category":"code_review","correlation_id":"fbde5dc3bc5bf848ef0081428d5f491a","idempotency_key":"resque:gitlab:duplicate:cronjob:schedule_merge_request_cleanup_refs:33e8a9dcd4c9780ad0ea123ad7ccbabde1aa1e90ffcbb928434ba4b5800a5811","enqueued_at":"2021-11-28T16:05:16.028Z","job_size_bytes":2,"pid":416,"message":"ScheduleMergeRequestCleanupRefsWorker JID-ca97f9a3889feaa95bc84676: start","job_status":"start","scheduling_latency_s":0.002402}
{"severity":"INFO","time":"2021-11-28T16:05:16.107Z","queue":"cronjob:schedule_merge_request_cleanup_refs","args":[],"class":"ScheduleMergeRequestCleanupRefsWorker","retry":0,"version":0,"queue_namespace":"cronjob","jid":"ca97f9a3889feaa95bc84676","created_at":"2021-11-28T16:05:16.026Z","meta.caller_id":"Cronjob","meta.feature_category":"code_review","correlation_id":"fbde5dc3bc5bf848ef0081428d5f491a","idempotency_key":"resque:gitlab:duplicate:cronjob:schedule_merge_request_cleanup_refs:33e8a9dcd4c9780ad0ea123ad7ccbabde1aa1e90ffcbb928434ba4b5800a5811","enqueued_at":"2021-11-28T16:05:16.028Z","job_size_bytes":2,"pid":416,"message":"ScheduleMergeRequestCleanupRefsWorker JID-ca97f9a3889feaa95bc84676: done: 0.076687 sec","job_status":"done","scheduling_latency_s":0.002402,"redis_calls":3,"redis_duration_s":0.073952,"redis_read_bytes":203,"redis_write_bytes":273,"redis_cache_calls":1,"redis_cache_duration_s":0.000393,"redis_cache_read_bytes":201,"redis_cache_write_bytes":61,"redis_queues_calls":2,"redis_queues_duration_s":0.073559,"redis_queues_read_bytes":2,"redis_queues_write_bytes":212,"db_count":0,"db_write_count":0,"db_cached_count":0,"cpu_s":0.001578,"mem_objects":883,"mem_bytes":153936,"mem_mallocs":192,"mem_total_bytes":189256,"duration_s":0.076687,"completed_at":"2021-11-28T16:05:16.107Z","db_duration_s":0.0}
Would appreciate any advice, thanks in advance!