[HTRACE-279] Fix issues where the HTracedSpanReceiver was using the wrong JSON serialization for spans and add validation to htraced REST ingest path

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1
• Fix Version/s: 4.1
• Component/s: htraced
• Target Version/s: 4.1
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 13/Oct/15 01:51
• Updated: 14/Oct/15 02:13
• Resolved: 13/Oct/15 23:09

Description

Apparently the HTracedReceiver is sometimes not using the JSON SpanSerializer from htrace-core4. We should force the span receiver to use that serializer. Also, we should add span ID validation to the htraced daemon. Currently, a bad span ID can crash the daemon, which is not very robust. These changes will fix the unit test failure in TestHTracedReceiver.