Good to hear you found the problem. Based on the information given, the only thing a reader would be able to deduce is that your request was taking too long for some reason and went over the 60 second deadline <https://cloud.google.com/appengine/docs/standard/go/how-requests-are-handled#Go_The_request_timer> .
If you're seeing issue with the logs viewer I'd recommend filing a bug on the issue tracker <https://cloud.google.com/support/docs/issue-trackers> and provide a screencast of the behavior as well as a HAR capture <https://toolbox.googleapps.com/apps/har_analyzer/> of the session. On Sunday, April 30, 2017 at 11:17:11 AM UTC-4, Tapir wrote: > > Aha, I think I found the issue. > It is a bug in code. > The code is modified two week ago. > > But it is weird that only the oldest log at April 24th prints the program > panic stack traces. > Other logs don't print the stack traces. > > On Sunday, April 30, 2017 at 9:55:18 PM UTC+8, Tapir wrote: >> >> I can't get what is problem from the log: >> >> E GET 500 0 B 100.9 s Googlebot 2 / GET 500 0 B 100.9 s >> Googlebot 2 >> 590210c200ff08698603ab0f540001737e74617069722d67616d6573000132000100 >> 66.249.75.176 - - [27/Apr/2017:23:39:46 +0800] "GET / HTTP/1.1" 500 - - >> "Mozilla/5.0 (compatible; Googlebot/2.1; + >> http://www.google.com/bot.html)" >> "www.tapirgames.com" ms=100878 cpu_ms=0 cpm_usd=0 loading_request=0 >> instance=00c61b117c1539d61ab092aaf414fa9a3546b76458a415df22126384274e5d0a59a890fafe6c0872 >> >> app_engine_release=1.9.48 trace_id=7fb8718bb041a287d39cdbcd4b720651 >> >> { >> protoPayload: { >> @type: "type.googleapis.com/google.appengine.logging.v1.RequestLog" >> appId: "s~tapir-games" >> versionId: "2" >> requestId: >> "590210c200ff08698603ab0f540001737e74617069722d67616d6573000132000100" >> ip: "66.249.75.176" >> startTime: "2017-04-27T15:39:46.551302Z" >> endTime: "2017-04-27T15:41:27.430060Z" >> latency: "100.878758s" >> method: "GET" >> resource: "/" >> httpVersion: "HTTP/1.1" >> status: 500 >> userAgent: "Mozilla/5.0 (compatible; Googlebot/2.1; + >> http://www.google.com/bot.html)" >> urlMapEntry: "_go_app" >> host: "www.tapirgames.com" >> instanceIndex: -1 >> finished: true >> instanceId: >> "00c61b117c1539d61ab092aaf414fa9a3546b76458a415df22126384274e5d0a59a890fafe6c0872" >> >> >> line: [ >> 0: { >> time: "2017-04-27T15:41:27.429917Z" >> severity: "ERROR" >> logMessage: "Process terminated because the request deadline was >> exceeded. (Error code 123)" >> } >> ] >> appEngineRelease: "1.9.48" >> traceId: "7fb8718bb041a287d39cdbcd4b720651" >> } >> insertId: "59021127000691e464bf51ad" >> httpRequest: { >> status: 500 >> } >> resource: { >> type: "gae_app" >> labels: { >> zone: "us2" >> project_id: "tapir-games" >> version_id: "2" >> module_id: "default" >> } >> } >> timestamp: "2017-04-27T15:39:46.551302Z" >> severity: "ERROR" >> labels: { >> clone_id: >> "00c61b117c1539d61ab092aaf414fa9a3546b76458a415df22126384274e5d0a59a890fafe6c0872" >> >> >> } >> logName: "projects/tapir-games/logs/appengine.googleapis.com%2Frequest_log" >> >> >> operation: { >> id: >> "590210c200ff08698603ab0f540001737e74617069722d67616d6573000132000100" >> producer: "appengine.googleapis.com/request_id" >> last: true >> } >> } >> >> 23:41:27.429 >> Process terminated because the request deadline was exceeded. (Error code >> 123) >> >> Can someone provide me some hints? >> > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/2e55317b-a89d-44dd-9d06-ff742fc28621%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
