Use the 'AS OF SYSTEM TIME' Cockroach DB clause for the Graceful Exit
(a.k.a GE) queries that count the delete the GE queue items of nodes
which have already exited the network.
Split the subquery used for deleting all the transfer queue items of
nodes which has exited when CRDB is used and batch the queries because
CRDB struggles when executing in a single query unlike Postgres.
The new test which has been added to this commit to verify the CRDB
batch logic for deleting all the transfer queue items of the exited
nodes has raised that the Enqueue method has to run in baches when CRDB
is used otherwise CRDB has return the error "driver: bad connection"
when a big a amount of items are passed to be enqueued. This error
didn't happen with the current test implementation it was with an
initial one that it was creating a big amount of exited nodes and
transfer queue items for those nodes.
Change-Id: I6a099cdbc515a240596bc93141fea3182c2e50a9
The test function fails randomly in the CI when runs with CRDB. There
isn't currently an explanation why the expectation of number of nodes
which exited 4 minutes ago reports 4 nodes rather than 5 and the only
clue that we have now to see if it gets remedied is to give 2 minutes
rather than 1 to the node that exited close to the time passed function
which makes the test to randomly fail.
Change-Id: I3a731e3eb7f19caebdf29713150727f2cf3e0e0a
metabase has become a central concept and it's more suitable for it to
be directly nested under satellite rather than being part of metainfo.
metainfo is going to be the "endpoint" logic for handling requests.
Change-Id: I53770d6761ac1e9a1283b5aa68f471b21e784198
The new 'consistency ge-cleanup-orphaned-data' cli command deleted
orphaned transfer queue items, but not entries in the
graceful_exit_progress table. This will delete orphaned entries
from the exit progress table too.
Change-Id: I5f927aac1f258490678deaf179be92ccfe10fcd8
Using random piece num may generate the exact same key or piecenum.
Instead use fixed piecenum and key.
Change-Id: I54b7bc1a6698149bf99608dd46501ea963cec084
Testing interfaces is slightly clearer when it's in the package needing
the database rather than each individual implementation.
Change-Id: I10334c214a205f7e510b939b4359a2214c4e060a
