[CASSANDRA-4862] Include session information in tracing activity output

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 1.2.0 beta 2
• Assignee: Aleksey Yeschenko
• Reporter: Jonathan Ellis

Authors

Aleksey Yeschenko

Reviewers

Jonathan Ellis

• Created: 25/Oct/12 15:10
• Updated: 16/Apr/19 09:32
• Resolved: 30/Oct/12 14:38

Description

Would like something like this:

activity | timestamp | source | source_elapsed
---------------------------------------------------------+---------------
execute_cql3_query | 09:57:27,290 | 127.0.0.1 | 0
Determining replicas for mutation | 09:57:27,290 | 127.0.0.1 | 2465
Sending message to /127.0.0.2 | 09:57:27,294 | 127.0.0.1 | 7105
Messsage received from /127.0.0.1 | 09:57:27,296 | 127.0.0.2 | 62
Applying mutation | 09:57:27,298 | 127.0.0.2 | 1246
Acquiring switchLock | 09:57:27,298 | 127.0.0.2 | 1353
Appending to commitlog | 09:57:27,298 | 127.0.0.2 | 1378
Adding to memtable | 09:57:27,298 | 127.0.0.2 | 1439
Enqueuing response to /127.0.0.1 | 09:57:27,298 | 127.0.0.2 | 1892
Messsage received from /127.0.0.2 | 09:57:27,301 | 127.0.0.1 | 14493
Sending message to /127.0.0.1 | 09:57:27,301 | 127.0.0.2 | 4527
Processing response from /127.0.0.2 | 09:57:27,302 | 127.0.0.1 | 15072
Request complete | 09:57:27,302 | 127.0.0.1 | 15100

... where first and last lines are coming from the sessions table.

Note that currently session table records started_at and finished_at; this will require also recording duration from the stopwatch.