CRUD indexRuleBindings

CRUD operations create, read, update and delete index rule bindings.

An index rule binding is a bridge to connect several index rules to a subject. This binding is valid between begin_at_nanoseconds and expire_at_nanoseconds, that provides flexible strategies to control how to generate time series indices.

bydbctl is the command line tool in examples.

Create operation

Create operation adds a new index rule binding to the database’s metadata registry repository. If the index rule binding does not currently exist, create operation will create the schema.

Examples

An index rule binding belongs to a unique group. We should create such a group with a catalog CATALOG_STREAM before creating a index rule binding. The subject(stream/measure) and index rule MUST live in the same group with the binding.

$ bydbctl group create -f - <<EOF
metadata:
  name: default
catalog: CATALOG_STREAM
resource_opts:
  shard_num: 2
  segment_interval:
    unit: UNIT_DAY
    num: 1
  ttl:
    unit: UNIT_DAY
    num: 7
EOF

The group creates two shards to store indexRuleBinding data points. Every one day, it would create a segment which will generate a block every 2 hours.

The data in this group will keep 7 days.

Then, below command will create a new indexRuleBinding:

$ bydbctl indexRuleBinding create -f - <<EOF
metadata:
  name: stream_binding
  group: sw_stream
rules:
- trace_id
- duration
- endpoint_id
- status_code
- http.method
- db.instance
- db.type
- mq.broker
- mq.queue
- mq.topic
- extended_tags
subject:
  catalog: CATALOG_STREAM
  name: sw
begin_at: '2021-04-15T01:30:15.01Z'
expire_at: '2121-04-15T01:30:15.01Z'
EOF

The YAML contains:

rules: references to the name of index rules.
subject: stream or measure’s name and catalog.
begin_at and expire_at: the TTL of this binding.

Get operation

Get(Read) operation gets an index rule binding’s schema.

Examples of getting

$ bydbctl indexRuleBinding get -g sw_stream -n stream_binding

Update operation

Update operation update an index rule binding’s schema.

Examples updating

$ bydbctl indexRuleBinding update -f - <<EOF
metadata:
  name: stream_binding
  group: sw_stream
rules:
- trace_id
- duration
- endpoint_id
- status_code
- http.method
- db.instance
- db.type
- mq.broker
- mq.queue
- mq.topic
# Remove this rule
# - extended_tags
subject:
  catalog: CATALOG_STREAM
  name: sw
begin_at: '2021-04-15T01:30:15.01Z'
expire_at: '2121-04-15T01:30:15.01Z'
EOF

The new YAML removed the index rule extended_tags’s binding.

Delete operation

Delete operation delete an index rule binding’s schema.

Examples of deleting

$ bydbctl indexRuleBinding delete -g sw_stream -n stream_binding

List operation

List operation list all index rule bindings in a group.

Examples of listing

$ bydbctl indexRuleBinding list -g sw_stream

API Reference

indexRuleBindingService v1

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