Road Map

Note 1: This road-map is still evolving and subject to change without notice.

Purpose: shrink megatest.db data to enable lower load and higher performance.

Method: add a completed-runs.db and automatically move runs data from megatest.db to that db

Design:

+
+completed-runs.db is a full megatest database with complete schema +
+
+
+the data move would involve these steps +
+
1. +
  +copy the run data to completed-runs.db +
  +
2. +
  +remove the run data, first from /tmp/…/megatest.db and /tmp/…/megatest_ref.db, followed by megatest.db +
  +
+
+
+accessing the data would be unchanged for most operations. +
+
+
+a mode -full-db will be added which when specified would attach the completed-runs.db to megatest.db before doing the query +
+
+
+mechanisms for moving runs to/from the megatest.db would be added +
+
1. +
  +-reduce-records ⇒ move runs to completed-runs.db +
  +
2. +
  +-restore-records ⇒ move runs from completed-runs.db to megatest.db +
  +
+

Branch: This work is taking place on branch v1.65-reduce-records

Purpose: Automatically migrate homehost.

Method: Check that there are no tests running, launched or remotehoststart in past ½ hour then if not on homehost migrate the db to current host

Design:

+
+Check that the system is quiescent, i.e. that there are no runs in flight or recently run +
+
+
+Create a lock +
+
+
+Migrate the /tmp cache db to the current host +
+
+
+Update the .homehost file +
+
+
+Remove the lock +
+

Branch: This work not yet started

@@ -2311,10 +2403,10 @@