Add in-place update for gateway replicas - #4014
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Support scaling gateways via in-place update of the `replicas` configuration property. For now, this feature is only intended for internal testing and is hidden behind the `GATEWAY_SCALING` flag, since it has limited applicability at the current stage — without a state sync mechanism, newly started gateway replicas are not aware of existing services.
r4victor
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Jul 10, 2026
r4victor
reviewed
Jul 10, 2026
r4victor
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r4victor
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r4victor
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Jul 14, 2026
For `running` gateways, do at most 15 scale out attempts with backoff. Submitting a new in-place update resets the attempt counter.
r4victor
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Jul 24, 2026
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| def upgrade() -> None: | ||
| # ### commands auto generated by Alembic - please adjust! ### | ||
| with op.batch_alter_table("gateway_computes", schema=None) as batch_op: | ||
| batch_op.add_column( | ||
| sa.Column("scale_in", sa.Boolean(), server_default=sa.false(), nullable=False) | ||
| ) | ||
|
|
||
| with op.batch_alter_table("gateways", schema=None) as batch_op: |
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Altering multiple tables should be done in separate transactions (migrations). See
dstack/contributing/MIGRATIONS.md
Line 47 in 2f9618f
r4victor
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Support scaling gateways via in-place update of
the
replicasconfiguration property. For now,this feature is only intended for internal testing
and is hidden behind the
GATEWAY_SCALINGflag,since it has limited applicability at the current
stage — without a state sync mechanism, newly
started gateway replicas are not aware of existing
services.
#3959