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| # One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix' | ||
| change_type: new_component | ||
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| # The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver) | ||
| component: cassandra_exporter | ||
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| # A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`). | ||
| note: Cassandra exporter implementation | ||
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| # One or more tracking issues related to the change | ||
| issues: [ ] | ||
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| # (Optional) One or more lines of additional information to render under the primary note. | ||
| # These lines will be padded with 2 spaces and then inserted directly into the document. | ||
| # Use pipe (|) for multiline entries. | ||
| subtext: |
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| include ../../Makefile.Common | ||
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| local-run-example: | ||
| cd ../../ && GOOS=linux go build -o ./local/otelcontribcol ./cmd/otelcontribcol | ||
| cd example && docker-compose up -d | ||
| recreate-otel-collector: | ||
| cd ../../ && GOOS=linux go build -o ./local/otelcontribcol ./cmd/otelcontribcol | ||
| cd example && docker-compose up --build otelcollector |
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| # Cassandra Exporter | ||
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| | Status | | | ||
| |--------------------------|-----------| | ||
| | Stability | [alpha] | | ||
| | Supported pipeline types | traces | | ||
| | Distributions | [contrib] | | ||
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| ## Configuration options | ||
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| The following settings can be optionally configured: | ||
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| - `dsn` The Cassandra server DSN (Data Source Name), for example `127.0.0.1`. | ||
| reference: [https://pkg.go.dev/github.com/gocql/gocql](https://pkg.go.dev/github.com/gocql/gocql) | ||
| - `keyspace` (default = otel): The keyspace name. | ||
| - `trace_table` (default = otel_spans): The table name for traces. | ||
| - `replication` (default = class: SimpleStrategy, replication_factor: 1) The strategy of | ||
| replication. https://cassandra.apache.org/doc/4.1/cassandra/architecture/dynamo.html#replication-strategy | ||
| - `compression` (default = LZ4Compressor) https://cassandra.apache.org/doc/latest/cassandra/operating/compression.html | ||
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| ## Example | ||
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| ```yaml | ||
| receivers: | ||
| examplereceiver: | ||
| processors: | ||
| batch: | ||
| timeout: 5s | ||
| send_batch_size: 100000 | ||
| exporters: | ||
| cassandra: | ||
| dsn: 127.0.0.1 | ||
| keyspace: "otel" | ||
| trace_table: "otel_spans" | ||
| replication: | ||
| class: "SimpleStrategy" | ||
| replication_factor: 1 | ||
| compression: | ||
| algorithm: "ZstdCompressor" | ||
| service: | ||
| pipelines: | ||
| logs: | ||
| receivers: [ examplereceiver ] | ||
| processors: [ batch ] | ||
| exporters: [ cassandra ] | ||
| ``` |
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| package cassandraexporter | ||
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| type Config struct { | ||
| DSN string `mapstructure:"dsn"` | ||
| Keyspace string `mapstructure:"keyspace"` | ||
| TraceTable string `mapstructure:"trace_table"` | ||
| Replication Replication `mapstructure:"replication"` | ||
| Compression Compression `mapstructure:"compression"` | ||
| } | ||
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| type Replication struct { | ||
| Class string `mapstructure:"class"` | ||
| ReplicationFactor int `mapstructure:"replication_factor"` | ||
| } | ||
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| type Compression struct { | ||
| Algorithm string `mapstructure:"algorithm"'` | ||
| } |
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| // Copyright 2020, OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| package cassandraexporter | ||
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| import ( | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "go.opentelemetry.io/collector/component" | ||
| "go.opentelemetry.io/collector/confmap/confmaptest" | ||
| "path/filepath" | ||
| "testing" | ||
| ) | ||
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| const defaultDSN = "127.0.0.1" | ||
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| func TestLoadConfig(t *testing.T) { | ||
| t.Parallel() | ||
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| cm, err := confmaptest.LoadConf(filepath.Join("testdata", "config.yaml")) | ||
| require.NoError(t, err) | ||
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| defaultCfg := createDefaultConfig() | ||
| defaultCfg.(*Config).DSN = defaultDSN | ||
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| tests := []struct { | ||
| id component.ID | ||
| expected component.Config | ||
| }{ | ||
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| { | ||
| id: component.NewIDWithName(typeStr, ""), | ||
| expected: defaultCfg, | ||
| }, | ||
| } | ||
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| for _, tt := range tests { | ||
| t.Run(tt.id.String(), func(t *testing.T) { | ||
| factory := NewFactory() | ||
| cfg := factory.CreateDefaultConfig() | ||
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| sub, err := cm.Sub(tt.id.String()) | ||
| require.NoError(t, err) | ||
| require.NoError(t, component.UnmarshalConfig(sub, cfg)) | ||
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| assert.NoError(t, component.ValidateConfig(cfg)) | ||
| assert.Equal(t, tt.expected, cfg) | ||
| }) | ||
| } | ||
| } | ||
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| func withDefaultConfig(fns ...func(*Config)) *Config { | ||
| cfg := createDefaultConfig().(*Config) | ||
| for _, fn := range fns { | ||
| fn(cfg) | ||
| } | ||
| return cfg | ||
| } |
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exporter/cassandraexporter/example/otel-collector-config.yml
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| receivers: | ||
| otlp: | ||
| protocols: | ||
| grpc: | ||
| endpoint: 0.0.0.0:4317 | ||
| exporters: | ||
| cassandra: | ||
| dsn: 127.0.0.1 | ||
| keyspace: "otel" | ||
| trace_table: "otel_spans" | ||
| replication: | ||
| class: "SimpleStrategy" | ||
| replication_factor: 1 | ||
| compression: | ||
| algorithm: "ZstdCompressor" | ||
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| service: | ||
| pipelines: | ||
| traces: | ||
| receivers: [ otlp ] | ||
| exporters: [ cassandra ] |
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