The agent slices the value_meta string to 2047, but on the server side, the string is actually larger by the number of newline chars in the string. This string:
Running router checks: WFFFF-INF-F-INF--INF-FFFFF\nWarning: The following ips failed to be pinged:\n IP: 24.26.93.106 Uptime: 167 days, 4:49:33.042665\n Instance: brad-canary (2770a3d4-d191-4380-a9bb-27b238681e3c)\n Tenant ID: 9f000df4a521445f8a4555d25c4bb4e3 Network ID: a56c92e5-5590-4bd1-a7fc-c0a7e5c04be9\n Router: bradrouter (52a77472-8df9-45ed-84f5-f7299a011d0c)\n Ignoring: CLOUDOPS_PINGFAIL in metadata\nCritical: The following ips failed to be pinged:\n IP: 24.26.93.15 Uptime: 22 days, 0:47:30.059483\n Instance: mfischV2-1 (20532feb-453c-4e06-a70a-dffbefbd3e9d)\n Tenant ID: 4764ba822ecb43e582794b875751924c Network ID: 7ef2fb1b-2acb-4fb2-9c85-a95dd9467715\n Router: mfisch (9c5a7368-9d07-41a9-8d98-0b8e57caa8ca)\n********************************************************************************\n IP: 24.26.93.22 Uptime: 5:09:50.096811\n Instance: iperftests-2 (18f5a2d5-39eb-4f9f-a25c-11716d18a950)\n Tenant ID: 86897aca9e814373ad4df06d063c0554 Network ID: 96ee4276-7408-4f33-9544-4eae93ea5a9c\n Router: ericstestrouter (85690a8e-07ad-4fe6-a6d2-608d780719d7)\n********************************************************************************\n IP: 24.26.93.51 Uptime: 150 days, 3:21:48.172479\n Instance: rally (b38e0633-fcec-4bb7-8459-7cc24f807232)\n Tenant ID: 5e6fbe72daed4802a93a63434af9c516 Network ID: a2aefe24-fc11-4e64-a698-5b16f3c05aa1\n Router: soapuiRegression-router (ae480052-5f57-46ac-a251-4206c4577d76)\n********************************************************************************\n IP: 24.26.93.114 Uptime: 8 days, 2:07:13.184110\n Instance: perf_test (d474ff9b-68ca-45b3-8615-c42e24309a57)\n Tenant ID: b8f1d25a25e346d5894dd94807f835fc Network ID: 26c1685b-196b-4ba4-b231-7913cdd8dd53\n Router: cdel_router (9dabc9f4-7657-4f9b-b7cc-301e90fe75b9)\n********************************************************************************\n IP: 24.26.93.40 Uptime: 83 days, 8:47:09.290400\n Instance: talligent (1d2207c2-a0d9-4834-8d60-9f7662e9e143)\n Tenant ID: dbc2e327b320497
is 2078 characters and causes issues when pushing to the db. This bug is related to https://bugs.launchpad.net/monasca/+bug/1501926 and https://bugs.launchpad.net/monasca/+bug/1501929.
