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https://issues.apache.org/jira/browse/TS-2669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13950437#comment-13950437
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Zhao Yongming commented on TS-2669:
-----------------------------------
well, maybe something that need more check, please findout the diags.log lines
like:
{code}
[Mar 27 20:31:25.948] {0x2b02748fde00} STATUS: opened
/var/log/trafficserver/diags.log
[Mar 27 20:31:25.948] {0x2b02748fde00} NOTE: updated diags config
[Mar 27 20:31:25.954] Server {0x2b02748fde00} NOTE: cache clustering disabled
[Mar 27 20:31:25.964] Server {0x2b02748fde00} NOTE: ip_allow.config updated,
reloading
[Mar 27 20:31:25.969] Server {0x2b02748fde00} NOTE: loading SSL certificate
configuration from /etc/trafficserver/ssl_multicert.config
[Mar 27 20:31:25.976] Server {0x2b02748fde00} NOTE: cache clustering disabled
[Mar 27 20:31:25.977] Server {0x2b02748fde00} NOTE: logging initialized[15],
logging_mode = 3
[Mar 27 20:31:25.978] Server {0x2b02748fde00} NOTE: loading plugin
'/usr/lib64/trafficserver/plugins/libloader.so'
[Mar 27 20:31:25.982] Server {0x2b02748fde00} NOTE: loading plugin
'/usr/local/ironbee/libexec/ts_ironbee.so'
[Mar 27 20:31:25.983] Server {0x2b02748fde00} NOTE: Rolling interval adjusted
from 0 sec to 300 sec for /var/log/trafficserver/ts-ironbee.log
[Mar 27 20:31:25.992] Server {0x2b02748fde00} NOTE: traffic server running
[Mar 27 20:31:26.077] Server {0x2b0275d8e700} NOTE: cache enabled
{code}
you may find out that ' traffic server running' indicates that ATS is running,
and 'cache enabled' show that cache is working. due to your system is crash and
cache is not enabled, I will suspect that your ATS does not have that 'cache
enabled' line.
this is often caused by something like privilege issue, that ATS server process
does not have the write privilege on the disk block device files etc. or
anything else you may findout in the diags.log or even system logs.
the interim cache & aio bugs may cause you lose the saved data, interim cache
may cause you lose the data while server process restart, and AIO may get all
data clear. but all those bugs fixed in the v4.1.0 release.
> ATS crash, then restart with all cached objects cleared
> -------------------------------------------------------
>
> Key: TS-2669
> URL: https://issues.apache.org/jira/browse/TS-2669
> Project: Traffic Server
> Issue Type: Bug
> Reporter: AnDao
>
> Hi all,
> I'm using ATS 4.1.2, my ATS is just crashed and restart and clean all the
> cached objects, cause my backend servers overload. Why ATS do clean all the
> cached objects when crash and restart?
> The log is:
> ***** manager.log
> [Mar 27 12:57:13.022] Manager {0x7f597e3477e0} FATAL:
> [LocalManager::pollMgmtProcessServer] Error in read (errno: 104)
> [Mar 27 12:57:13.022] Manager {0x7f597e3477e0} NOTE:
> [LocalManager::mgmtShutdown] Executing shutdown request.
> [Mar 27 12:57:13.022] Manager {0x7f597e3477e0} NOTE:
> [LocalManager::processShutdown] Executing process shutdown request.
> [Mar 27 12:57:13.028] Manager {0x7f597e3477e0} ERROR:
> [LocalManager::sendMgmtMsgToProcesses] Error writing message
> [Mar 27 12:57:13.028] Manager {0x7f597e3477e0} ERROR: (last system error 32:
> Broken pipe)
> [Mar 27 12:57:13.174] {0x7ffaeec7e7e0} STATUS: opened
> /zserver/log/trafficserver/manager.log
> [Mar 27 12:57:13.174] {0x7ffaeec7e7e0} NOTE: updated diags config
> [Mar 27 12:57:13.520] Manager {0x7ffaeec7e7e0} NOTE: [ClusterCom::ClusterCom]
> Node running on OS: 'Linux' Release: '2.6.32-358.6.2.el6.x86_64'
> [Mar 27 12:57:13.550] Manager {0x7ffaeec7e7e0} NOTE:
> [LocalManager::listenForProxy] Listening on port: 80
> [Mar 27 12:57:13.550] Manager {0x7ffaeec7e7e0} NOTE: [TrafficManager] Setup
> complete
> [Mar 27 12:57:14.618] Manager {0x7ffaeec7e7e0} NOTE:
> [LocalManager::startProxy] Launching ts process
> [Mar 27 12:57:14.632] Manager {0x7ffaeec7e7e0} NOTE:
> [LocalManager::pollMgmtProcessServer] New process connecting fd '15'
> [Mar 27 12:57:14.632] Manager {0x7ffaeec7e7e0} NOTE: [Alarms::signalAlarm]
> Server Process born
> ******* traffic.out ***
> [E. Mgmt] log ==> [TrafficManager] using root directory
> '/zserver/trafficserver-4.1.2'
> [TrafficServer] using root directory '/zserver/trafficserver-4.1.2'
> NOTE: Traffic Server received Sig 15: Terminated
> [E. Mgmt] log ==> [TrafficManager] using root directory
> '/zserver/trafficserver-4.1.2'
> [TrafficServer] using root directory '/zserver/trafficserver-4.1.2'
> NOTE: Traffic Server received Sig 11: Segmentation fault
> /zserver/trafficserver-4.1.2/bin/traffic_server - STACK TRACE:
> /lib64/libpthread.so.0(+0x35a360f500)[0x2b3b55819500]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN12HttpTransact47change_response_header_because_of_range_requestEPNS_5StateEP7HTTPHdr+0x240)[0x54b8a0]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN12HttpTransact28handle_content_length_headerEPNS_5StateEP7HTTPHdrS3_+0x2c8)[0x54bc38]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN12HttpTransact14build_responseEPNS_5StateEP7HTTPHdrS3_11HTTPVersion10HTTPStatusPKc+0x3e3)[0x54c0c3]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN12HttpTransact22handle_transform_readyEPNS_5StateE+0x70)[0x54ca40]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN6HttpSM32call_transact_and_set_next_stateEPFvPN12HttpTransact5StateEE+0x28)[0x51b418]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN6HttpSM38state_response_wait_for_transform_readEiPv+0xed)[0x52988d]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN6HttpSM12main_handlerEiPv+0xd8)[0x533178]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN17TransformTerminus12handle_eventEiPv+0x1d2)[0x4e8c62]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN7EThread13process_eventEP5Eventi+0x8f)[0x6a5a0f]
> /zserver/trafficserver-4.1.2/bin/traffic_server(_ZN7EThread7executeEv+0x63b)[0x6a658b]
> /zserver/trafficserver-4.1.2/bin/traffic_server[0x6a48aa]
> /lib64/libpthread.so.0(+0x35a3607851)[0x2b3b55811851]
> /lib64/libc.so.6(clone+0x6d)[0x35a32e890d]
> [E. Mgmt] log ==> [TrafficManager] using root directory
> '/zserver/trafficserver-4.1.2'
> [TrafficServer] using root directory '/zserver/trafficserver-4.1.2'
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