Here are some logs from the production retracers reprocessing a failure of this category.
./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:23,549:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Processing. ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:23,617:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Decompressing to /tmp/tmpAUED9R-swift.5063ed58-0c44-11e6-9d57-fa163ebeb28a.oopsid.core ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:24,061:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Retracing 5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,157:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Writing back to Cassandra ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,162:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Apport did not return a crash_signature. ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,162:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:StacktraceTop: ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,163:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:?? () ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,163:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:?? () ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,163:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:?? () ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,163:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:?? () ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,163:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:?? () ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:55:35,163:21330:140638664505088:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Requeueing a possible apport failure. ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:57:07,290:4986:139655565539072:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Processing. ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:57:07,429:4986:139655565539072:INFO:urllib3.connectionpool:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Starting new HTTP connection (1): 10.34.0.136 ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:57:07,748:4986:139655565539072:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Decompressing to /tmp/tmp3QdAr4-swift.5063ed58-0c44-11e6-9d57-fa163ebeb28a.oopsid.core ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:57:08,202:4986:139655565539072:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Retracing 5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:57:28,236:4986:139655565539072:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Writing back to Cassandra ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:57:28,267:4986:139655565539072:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Successfully retraced. ./e-t-retracer-app-10.42.32.39/production-logs/retracer-amd64.log:2016-04-27 06:57:30,099:4986:139655565539072:INFO:root:5063ed58-0c44-11e6-9d57-fa163ebeb28a:swift:Done processing /tmp/tmp3QdAr4-swift.5063ed58-0c44-11e6-9d57-fa163ebeb28a.oopsid
This was retried many more times than I would have expected though.
Here are some logs from the production retracers reprocessing a failure of this category.
./e-t-retracer- app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:23, 549:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Processing. app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:23, 617:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Decompressing to /tmp/tmpAUED9R- swift.5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a.oopsid. core app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:24, 061:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Retracing 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 157:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Writing back to Cassandra app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 162:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Apport did not return a crash_signature. app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 162:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: StacktraceTop: app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 163:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: ?? () app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 163:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: ?? () app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 163:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: ?? () app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 163:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: ?? () app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 163:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: ?? () app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:55:35, 163:21330: 140638664505088 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Requeueing a possible apport failure. app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:57:07, 290:4986: 139655565539072 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Processing. app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:57:07, 429:4986: 139655565539072 :INFO:urllib3. connectionpool: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Starting new HTTP connection (1): 10.34.0.136 app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:57:07, 748:4986: 139655565539072 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Decompressing to /tmp/tmp3QdAr4- swift.5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a.oopsid. core app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:57:08, 202:4986: 139655565539072 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Retracing 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:57:28, 236:4986: 139655565539072 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Writing back to Cassandra app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:57:28, 267:4986: 139655565539072 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Successfully retraced. app-10. 42.32.39/ production- logs/retracer- amd64.log: 2016-04- 27 06:57:30, 099:4986: 139655565539072 :INFO:root: 5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a:swift: Done processing /tmp/tmp3QdAr4- swift.5063ed58- 0c44-11e6- 9d57-fa163ebeb2 8a.oopsid
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
./e-t-retracer-
This was retried many more times than I would have expected though.