Yes , its generating core dump file in traffic server root path and we are using ATS.6.2 in centos 6.5.
traffic.out logs “ATAL: InkAPI.cc:1879: failed assert `sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS` traffic_server: using root directory '/opt/trafficserver' traffic_server: received signal 6 (Aborted) traffic_server - STACK TRACE: /opt/trafficserver/bin/traffic_server(_Z19crash_logger_invokeiP7siginfoPv+0x8e)[0x4ac5ee] /lib64/libpthread.so.0[0x3030e0f7e0] /lib64/libc.so.6(gsignal+0x35)[0x3030a32495] /lib64/libc.so.6(abort+0x175)[0x3030a33c75] /opt/trafficserver/lib/libtsutil.so.6(+0x28228)[0x2b5cb60dc228] /opt/trafficserver/lib/libtsutil.so.6(+0x282bc)[0x2b5cb60dc2bc] /opt/trafficserver/lib/libtsutil.so.6(+0x26595)[0x2b5cb60da595] /opt/trafficserver/bin/traffic_server(TSHandleMLocRelease+0x3a)[0x4c33ca] /opt/trafficserver/libexec/trafficserver/stale_while_revalidate.so(+0x38c9)[0x2b5e9eaa48c9] /opt/trafficserver/bin/traffic_server(_ZN15INKContInternal12handle_eventEiPv+0xdb)[0x4c12ab] /opt/trafficserver/bin/traffic_server(_ZN6HttpSM17state_api_calloutEiPv+0x1b7)[0x5ac967] /opt/trafficserver/bin/traffic_server(_ZN6HttpSM14set_next_stateEv+0x65b)[0x5b226b] /opt/trafficserver/bin/traffic_server(_ZN6HttpSM22state_cache_open_writeEiPv+0x20e)[0x5a3cde] /opt/trafficserver/bin/traffic_server(_ZN6HttpSM12main_handlerEiPv+0xca)[0x5b3f3a] /opt/trafficserver/bin/traffic_server(_ZN11HttpCacheSM22state_cache_open_writeEiPv+0x281)[0x58a481] /opt/trafficserver/bin/traffic_server(_ZN7EThread13process_eventEP5Eventi+0x120)[0x766f00] /opt/trafficserver/bin/traffic_server(_ZN7EThread7executeEv+0x811)[0x767bd1] /opt/trafficserver/bin/traffic_server[0x76698a] /lib64/libpthread.so.0[0x3030e07aa1] /lib64/libc.so.6(clone+0x6d)[0x3030ae8bdd]” No I did not set ephemeral ports . Had default values already . net.ipv4.ip_local_port_range = 32768 60999 net.ipv4.ip_local_reserved_ports = ###this one is empty So its set by manually . net.ipv4.ip_local_reserved_ports = 30000-31000 Is this ok ? . __Vasanth Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 From: Susan Hinrichs<mailto:shinr...@oath.com> Sent: Friday, November 16, 2018 7:55 PM To: users@trafficserver.apache.org<mailto:users@trafficserver.apache.org> Subject: Re: Traffic server suddenly drop the packets and crashed Are you exhausting ephemeral ports? What is the output of "ss -s" on your Traffic Server machine? That is quite easy exhaust all of the ephemeral ports for a single load testing client machine between active and time-wait connections. Is Traffic Server generating a core or a stack trace? What version of Traffic Server? On Fri, Nov 16, 2018 at 1:42 AM Vasanth Mathivanan <vasant...@evolutiondigital.com<mailto:vasant...@evolutiondigital.com>> wrote: Hi , We are testing 1000 client access one by one load test after 700 clients dropping the packets like “connection timeout” or “Connection reset by peer ” errors . Ram and Cpus resources are everything is fine .Ethernet speed also 20gb/s both client and traffic server . Origin server has 2gb/s speed between ATS and Origin server .While running 700 requests in origin server content will be receiving speed less than 10Mb/s then traffic server and client getting more than 1Gb/s speed . We are also monitoring that resources everything running fine but crashed the traffic server after 700 requests . Note: We are created Java player , We will give the no of requests its call the particular URL based on given requests . __Vasanth Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10