Prometheus shutdown logs ERROR REPORT and CRASH REPORT

[ns_server:error,2020-12-19T23:14:01.426+05:30,n_1@127.0.0.1:prometheus_cfg<0.2559.0>:prometheus_cfg:terminate:382]Terminate: shutdown

[ns_server:debug,2020-12-19T23:14:01.427+05:30,n_1@127.0.0.1:prometheus_cfg<0.2559.0>:prometheus_cfg:terminate_prometheus:511]Terminating Prometheus gracefully

[ns_server:debug,2020-12-19T23:14:01.427+05:30,n_1@127.0.0.1:<0.2571.0>:ns_pubsub:do_subscribe_link_continue:152]Parent process of subscription {user_storage_events,<0.2569.0>} exited with reason shutdown

[ns_server:debug,2020-12-19T23:14:01.427+05:30,n_1@127.0.0.1:<0.2570.0>:ns_pubsub:do_subscribe_link_continue:152]Parent process of subscription {ns_config_events,<0.2569.0>} exited with reason shutdown

[ns_server:debug,2020-12-19T23:14:01.420+05:30,n_1@127.0.0.1:<0.2617.0>:ns_pubsub:do_subscribe_link_continue:152]Parent process of subscription {buckets_events,<0.2614.0>} exited with reason shutdown

[ns_server:debug,2020-12-19T23:14:01.520+05:30,n_1@127.0.0.1:prometheus-goport<0.2568.0>:goport:handle_eof:582]Stream 'stderr' closed

[ns_server:debug,2020-12-19T23:14:01.520+05:30,n_1@127.0.0.1:prometheus-goport<0.2568.0>:goport:handle_eof:582]Stream 'stdout' closed

[ns_server:info,2020-12-19T23:14:01.520+05:30,n_1@127.0.0.1:prometheus-goport<0.2568.0>:goport:handle_process_exit:563]Port exited with status 0.

[error_logger:error,2020-12-19T23:14:01.521+05:30,n_1@127.0.0.1:<0.2562.0>:ale_error_logger_handler:do_log:107]

=========================ERROR REPORT=========================

** Generic server <0.2562.0> terminating

** Last message in was {<0.2568.0>,{exit_status,0}}

** When Server state == {state,<0.2568.0>,

                            {prometheus,"/opt/build/install/bin/prometheus",

                                ["--config.file",

                                 "/opt/build/ns_server/data/n_1/config/prometheus.yml",

                                 "--web.enable-admin-api",

                                 "--web.enable-lifecycle",

                                 "--storage.tsdb.retention.size","1024MB",

                                 "--storage.tsdb.retention.time","365d",

                                 "--web.listen-address","127.0.0.1:9901",

                                 "--storage.tsdb.max-block-duration","25h",

                                 "--storage.tsdb.path",

                                 "/opt/build/ns_server/data/n_1/stats_data",

                                 "--log.level","debug","--query.max-samples",

                                 "200000","--storage.tsdb.no-lockfile",

                                 "--web.basicauth.config",

                                 "/opt/build/ns_server/data/n_1/config/prometheus_auth"],

                                [via_goport,exit_status,stderr_to_stdout,

                                 {env,[]}]},

                            {ringbuffer,1228,1024,

                                {[{<<"level=info ts=2020-12-19T17:44:01.482Z caller=notifier.go:601 component=notifier msg=\"Stopping notification manager...\"\nlevel=info ts=2020-12-19T17:44:01.482Z caller=main.go:792 msg=\"Notifier manager stopped\"\nlevel=info ts=2020-12-19T17:44:01.482Z caller=main.go:804 msg=\"See you next time!\"\n">>,

                                   292}],

                                 [{<<"level=warn ts=2020-12-19T17:44:01.475Z caller=main.go:568 msg=\"Received termination request via web service, exiting gracefully...\"\nlevel=info ts=2020-12-19T17:44:01.475Z caller=main.go:588 msg=\"Stopping scrape discovery manager...\"\nlevel=info ts=2020-12-19T17:44:01.476Z caller=main.go:602 msg=\"Stopping notify discovery manager...\"\nlevel=info ts=2020-12-19T17:44:01.476Z caller=main.go:624 msg=\"Stopping scrape manager...\"\nlevel=info ts=2020-12-19T17:44:01.476Z caller=main.go:584 msg=\"Scrape discovery manager stopped\"\nlevel=info ts=2020-12-19T17:44:01.476Z caller=main.go:598 msg=\"Notify discovery manager stopped\"\nlevel=info ts=2020-12-19T17:44:01.476Z caller=manager.go:924 component=\"rule manager\" msg=\"Stopping rule manager...\"\nlevel=info ts=2020-12-19T17:44:01.476Z caller=manager.go:934 component=\"rule manager\" msg=\"Rule manager stopped\"\nlevel=info ts=2020-12-19T17:44:01.476Z caller=main.go:618 msg=\"Scrape manager stopped\"\n">>,

                                   936}]}},

                            prometheus,undefined,[],0}

** Reason for termination ==

** {abnormal,0}

[error_logger:error,2020-12-19T23:14:01.523+05:30,n_1@127.0.0.1:<0.2562.0>:ale_error_logger_handler:do_log:107]

=========================CRASH REPORT=========================

  crasher:

    initial call: ns_port_server:init/1

    pid: <0.2562.0>

    registered_name: []

    exception exit: {abnormal,0}

      in function  gen_server:handle_common_reply/8 (gen_server.erl, line 751)

    ancestors: [prometheus_cfg,ns_server_sup,ns_server_nodes_sup,<0.2438.0>,

                  ns_server_cluster_sup,root_sup,<0.139.0>]

    message_queue_len: 1

    messages: [{'EXIT',<0.2568.0>,normal}]

    links: [<0.2559.0>]

    dictionary: []

    trap_exit: true

    status: running

    heap_size: 10958

    stack_size: 27

    reductions: 26389

  neighbours:[ns_server:debug,2020-12-19T23:14:01.525+05:30,n_1@127.0.0.1:prometheus_cfg<0.2559.0>:prometheus_cfg:terminate_prometheus:532]Prometheus port server stopped successfully

[ns_server:debug,2020-12-19T23:14:01.525+05:30,n_1@127.0.0.1:<0.2560.0>:ns_pubsub:do_subscribe_link_continue:152]Parent process of subscription {ns_config_events,<0.2559.0>} exited with reason shutdown

[ns_server:debug,2020-12-19T23:14:01.528+05:30,n_1@127.0.0.1:ns_couchdb_port<0.2505.0>:ns_port_server:terminate:196]Shutting down port ns_couchdb

[ns_server:debug,2020-12-19T23:14:01.529+05:30,n_1@127.0.0.1:<0.2550.0>:remote_monitors:handle_down:158]Caller of remote monitor <0.2506.0> died with shutdown. Exiting

[ns_server:debug,2020-12-19T23:14:01.529+05:30,n_1@127.0.0.1:ns_couchdb_port<0.2505.0>:ns_port_server:port_shutdown:297]Shutdown command: "shutdown"