Mercurial > libervia-backend
view sat/memory/migration/script.py.mako @ 3941:036188fff714
plugin pubsub cache: avoid race condition by retrying node request:
When retrieving items, there may be a race condition if a node is not found in cache, then
created before `setPubsubNode` is called. This patch handle this case by retrying in case
of UNIQUE constraint violation.
author | Goffi <goffi@goffi.org> |
---|---|
date | Sat, 15 Oct 2022 20:38:33 +0200 |
parents | 71516731d0aa |
children |
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"""${message} Revision ID: ${up_revision} Revises: ${down_revision | comma,n} Create Date: ${create_date} """ from alembic import op import sqlalchemy as sa ${imports if imports else ""} # revision identifiers, used by Alembic. revision = ${repr(up_revision)} down_revision = ${repr(down_revision)} branch_labels = ${repr(branch_labels)} depends_on = ${repr(depends_on)} def upgrade(): ${upgrades if upgrades else "pass"} def downgrade(): ${downgrades if downgrades else "pass"}