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commit 7b7e1d37c811b8abfb4d5879a480d3feb44f610c Author: Lei Zhang <[email protected]> AuthorDate: Fri Jul 26 21:59:27 2019 +0800 SCB-1369 rebase --- docs/fsm/how_to_use_fsm_zh.md | 552 ++++++++++++++++++++++++------------------ docs/user_guide.md | 8 +- docs/user_guide_zh.md | 8 +- 3 files changed, 331 insertions(+), 237 deletions(-) diff --git a/docs/fsm/how_to_use_fsm_zh.md b/docs/fsm/how_to_use_fsm_zh.md index 6c7909e..d5da9b8 100644 --- a/docs/fsm/how_to_use_fsm_zh.md +++ b/docs/fsm/how_to_use_fsm_zh.md @@ -2,18 +2,27 @@ ## 快速开始 -使用 `alpha.feature.akka.enabled=true` 开启状态机模式 +* 启动 Alpha + 使用 `alpha.feature.akka.enabled=true` 开启状态机模式 -```bash -java -jar alpha-server-${version}-exec.jar \ - --spring.datasource.url=jdbc:postgresql://0.0.0.0:5432/saga?useSSL=false - --spring.datasource.username=saga-user - --spring.datasource.password=saga-password - --spring.profiles.active=prd - --alpha.feature.akka.enabled=true -``` + ```bash + java -jar alpha-server-${version}-exec.jar \ + --spring.datasource.url=jdbc:postgresql://0.0.0.0:5432/saga?useSSL=false \ + --spring.datasource.username=saga-user \ + --spring.datasource.password=saga-password \ + --spring.profiles.active=prd \ + --alpha.feature.akka.enabled=true + ``` + +* Omega 侧配置 + + 使用 `alpha.feature.akka.enabled=true` 开启状态机模式 + + ```base + alpha.feature.akka.enabled=true + ``` -**注意：**状态机模式默认没有存储执行完毕的事务数据，如果想存储执行后的事务数据请看使用 Elasticsearch 存储终止的全局事务数据章节 +**注意：**状态机模式默认没有存储执行完毕的事务数据，如果想存储执行后的事务数据请参考 "使用 Elasticsearch 存储终止的全局事务数据章节" ## Alpha 事件通道类型 @@ -27,7 +36,8 @@ Alpha 收到 Omeag 发送的事件后放入事件通道等待Akka处理，默认 **注意：** activemq, kafka, redis 还未实现 0_0 -## 性能度量 +## Alpha APIs +#### 性能度量 Alpha 提供一个性能度量查询API，使用这个查询接口可以返回当前事务各个环节性能指标，你可以使用基准测试工具 `AlphaBenchmark` 模拟发送数据后查看性能指标。 @@ -90,247 +100,319 @@ curl http://localhost:8090/alpha/api/v1/metrics * repositoryRejected: 存储模块拒绝的全局事务数量 * repositoryAvgTime: 平均耗时（毫秒） -## 使用 Elasticsearch 存储终止的全局事务数据 - -> 只有终止的全局事务才会存储到 Elasticsearch 中，终止的全局事务包含正常终止或者挂起终止两种情况，执行中的全局事务需要通过调用 Alpha RESTfulAPI 进行查询 +#### 事务数据查询 -使用 docker 启动一个 Elasticsearch 服务，如果你已经有 Elasticsearch 服务请忽略这个步骤 +> 需要启动 Elasticsearch 存储事务 -```bash -docker run --name elasticsearch -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" elasticsearch:6.6.2 -``` - -启动 Alpha 的时候配置 Elasticsearch 参数 - -```bash -java -jar alpha-server-${version}-exec.jar \ - --spring.datasource.url=jdbc:postgresql://0.0.0.0:5432/saga?useSSL=false - --spring.datasource.username=saga-user - --spring.datasource.password=saga-password - --spring.profiles.active=prd - --alpha.feature.akka.enabled=true - --alpha.feature.akka.transaction.repository.type=elasticsearch - --spring.data.elasticsearch.cluster-name=docker-cluster - --spring.data.elasticsearch.cluster-nodes=localhost:9300 - --spring.elasticsearch.rest.uris=http://localhost:9200 -``` -| 参数名 | 默认值 | 说明 | -| ------------------------------------------------------------ | ------ | ------------------------------------------------------------ | -| alpha.feature.akka.transaction.repository.type | | 持久化类型，目前可选值 elasticsearch，如果不设置则不存储 | -| alpha.feature.akka.transaction.repository.elasticsearch.memory.size | -1 | 持久化数据队列，默认 Integer.MAX. Actor会将终止的事务数据放入此队列，并等待存入elasticsearch | -| alpha.feature.akka.transaction.repository.elasticsearch.batchSize | 100 | elasticsearch 批量入库数量 | -| alpha.feature.akka.transaction.repository.elasticsearch.refreshTime | 5000 | elasticsearch 定时同步到ES时间 | -| spring.data.elasticsearch.cluster-name | | ES集群名称 | -| spring.data.elasticsearch.cluster-nodes | | ES节点地址，格式：localhost:9300，多个地址逗号分隔 | -| spring.elasticsearch.rest.uris | | ES rest访问地址，格式：http://localhost:9200 | - -使用 Elasticsearch APIs 查询事务 -Alpha 会在 Elasticsearch 中创建一个名为 `alpha_global_transaction` 的索引，你可以使用以下方法查询事务数据 - -查询所有事务 - -```bash -curl http://localhost:9200/alpha_global_transaction/_search -``` +* 查询事务列表 -查询匹配 globalTxId 的事务 + ```bash + curl -X GET http://localhost:8090/alpha/api/v1/transaction?page=0&size=50 + + { + "total": 2002, + "page": 0, + "size": 50, + "elapsed": 581, + "gloablTransactions": [...] + } + ``` + + 请求参数 + + * page 页号 + + * size 返回行树 + + 返回参数 + + * total 总行数 + * page 本次查询结果页号 + * size 本次查询行数 + * elapsed 本次查询耗时（毫秒） + * gloablTransactions 事件数据列表 + +* 查询一条事务 + + ```bash + curl -X GET http://localhost:8090/alpha/api/v1/transaction/{globalTxId} + + { + "globalTxId": "e00a3bac-de6b-498f-99a4-c11d3087fd14", + "type": "SAGA", + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "beginTime": "2019-07-26T07:46:27.215+0000", + "endTime": "2019-07-26T07:46:27.623+0000", + "state": "COMMITTED", + "subTxSize": 3, + "durationTime": 408, + "subTransactions": [...], + "events": [...] + } + ``` -```bash -curl -X POST http://localhost:9200/alpha_global_transaction/_search -H 'Content-Type: application/json' -d ' -{ - "query": { - "bool": { - "must": [{ - "term": { - "globalTxId.keyword": "974d089a-5476-48ed-847a-1e338456809b" - } - }], - "must_not": [], - "should": [] - } - }, - "from": 0, - "size": 10, - "sort": [], - "aggs": {} -}' -``` + 请求参数 -更多用法参考 [Elasticsearch APIs](https://www.elastic.co/guide/en/elasticsearch/reference/6.6/docs.html) + * globalTxId 全局事务ID -查询返回 JSON 格式 + 返回参数 -```json -{ - "took": 17, - "timed_out": false, - "_shards": { - "total": 5, - "successful": 5, - "skipped": 0, - "failed": 0 - }, - "hits": { - "total": 4874, - "max_score": 1.0, - "hits": [{ - "_index": "alpha_global_transaction", - "_type": "alpha_global_transaction_type", - "_id": "209791a0-34f4-40da-807e-9c5b8786dd61", - "_score": 1.0, - "_source": { - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "type": "SAGA", - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", - "beginTime": 1563982631298, - "endTime": 1563982631320, - "state": "COMMITTED", - "subTxSize": 3, - "durationTime": 22, - "subTransactions": [...], - "events": [...] - } - },{...}] - } -} -``` + * globalTxId 全局事务ID + * type 事务类型，目前只有SAGA，后期增加TCC + * serviceName 全局事务发起方服务名称 + * instanceId 全局事务发起方实例ID + * beginTime 事务开始事件 + * endTime 事务结束时间 + * state 事务最终状态 + * subTxSize 包含子事务数量 + * durationTime 全局事务处理耗时 + * subTransactions 子事务数据列表 + * events 事件列表 -查询返回 JSON样例 +## 使用 Elasticsearch 存储终止的全局事务数据 -```json -{ - "took": 17, - "timed_out": false, - "_shards": { - "total": 5, - "successful": 5, - "skipped": 0, - "failed": 0 - }, - "hits": { - "total": 4874, - "max_score": 1.0, - "hits": [{ - "_index": "alpha_global_transaction", - "_type": "alpha_global_transaction_type", - "_id": "209791a0-34f4-40da-807e-9c5b8786dd61", - "_score": 1.0, - "_source": { - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "type": "SAGA", - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", - "beginTime": 1563982631298, - "endTime": 1563982631320, - "state": "COMMITTED", - "subTxSize": 3, - "durationTime": 22, - "subTransactions": [{ - "localTxId": "03fe15b2-a070-4e55-9b5b-801c2181dd0a", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "beginTime": 1563982631308, - "endTime": 1563982631309, - "state": "COMMITTED", - "durationTime": 1 - }, { - "localTxId": "923f83fd-0bce-4fac-8c89-ecbe7c5e9106", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "beginTime": 1563982631320, - "endTime": 1563982631320, - "state": "COMMITTED", - "durationTime": 0 - }, { - "localTxId": "95821ce3-2202-4e55-9343-4e6a6519821f", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "beginTime": 1563982631309, - "endTime": 1563982631309, - "state": "COMMITTED", - "durationTime": 0 +> 只有终止的全局事务才会存储到 Elasticsearch 中，终止的全局事务包含正常状态终止或者挂起状态终止两种情况， +> +> 执行中的全局事务需要通过调用 Alpha RESTfulAPI 进行查询（暂未实现） + +* 使用 docker 启动一个 Elasticsearch 服务，如果你已经有 Elasticsearch 服务请忽略这个步骤 + + ```bash + docker run --name elasticsearch -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" elasticsearch:6.6.2 + ``` + +* 启动 Alpha 的时候配置 Elasticsearch 参数 + + ```bash + java -jar alpha-server-${version}-exec.jar \ + --spring.datasource.url=jdbc:postgresql://0.0.0.0:5432/saga?useSSL=false \ + --spring.datasource.username=saga-user \ + --spring.datasource.password=saga-password \ + --spring.profiles.active=prd \ + --alpha.feature.akka.enabled=true \ + --alpha.feature.akka.transaction.repository.type=elasticsearch \ + --spring.data.elasticsearch.cluster-name=docker-cluster \ + --spring.data.elasticsearch.cluster-nodes=localhost:9300 + ``` +* 参数说明 + + | 参数名 | 默认值 | 说明 | + | ------------------------------------------------------------ | ------ | ------------------------------------------------------------ | + | alpha.feature.akka.transaction.repository.type | | 持久化类型，目前可选值 elasticsearch，如果不设置则不存储 | + | alpha.feature.akka.transaction.repository.elasticsearch.memory.size | -1 | 持久化数据队列，默认 Integer.MAX. Actor会将终止的事务数据放入此队列，并等待存入elasticsearch | + | alpha.feature.akka.transaction.repository.elasticsearch.batchSize | 100 | elasticsearch 批量入库数量 | + | alpha.feature.akka.transaction.repository.elasticsearch.refreshTime | 5000 | elasticsearch 定时同步到ES时间 | + | spring.data.elasticsearch.cluster-name | | ES集群名称 | + | spring.data.elasticsearch.cluster-nodes | | ES节点地址，格式：localhost:9300，多个地址逗号分隔 | + +* 使用 Elasticsearch APIs 查询事务 + Alpha 会在 Elasticsearch 中创建一个名为 `alpha_global_transaction` 的索引，你可以使用以下方法查询事务数据 + +* 查询所有事务 + + ```bash + curl http://localhost:9200/alpha_global_transaction/_search + ``` + +* 查询匹配 globalTxId 的事务 + + ```bash + curl -X POST http://localhost:9200/alpha_global_transaction/_search -H 'Content-Type: application/json' -d ' + { + "query": { + "bool": { + "must": [{ + "term": { + "globalTxId.keyword": "974d089a-5476-48ed-847a-1e338456809b" + } }], - "events": [{ - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "createTime": 1563982631298, - "timeout": 0, - "type": "SagaStartedEvent" - }, { - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "03fe15b2-a070-4e55-9b5b-801c2181dd0a", - "createTime": 1563982631299, - "compensationMethod": "service a", - "payloads": "AQE=", - "retryMethod": "", - "retries": 0, - "type": "TxStartedEvent" - }, { - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "03fe15b2-a070-4e55-9b5b-801c2181dd0a", - "createTime": 1563982631301, - "type": "TxEndedEvent" - }, { - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "95821ce3-2202-4e55-9343-4e6a6519821f", - "createTime": 1563982631302, - "compensationMethod": "service b", - "payloads": "AQE=", - "retryMethod": "", - "retries": 0, - "type": "TxStartedEvent" - }, { - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "95821ce3-2202-4e55-9343-4e6a6519821f", - "createTime": 1563982631304, - "type": "TxEndedEvent" - }, { - "serviceName": "alpha-benchmark", - "instanceId": "alpha-benchmark-127.0.0.1", + "must_not": [], + "should": [] + } + }, + "from": 0, + "size": 10, + "sort": [], + "aggs": {} + }' + ``` + +* 查询返回 JSON 格式 + + ```json + { + "took": 17, + "timed_out": false, + "_shards": { + "total": 5, + "successful": 5, + "skipped": 0, + "failed": 0 + }, + "hits": { + "total": 4874, + "max_score": 1.0, + "hits": [{ + "_index": "alpha_global_transaction", + "_type": "alpha_global_transaction_type", + "_id": "209791a0-34f4-40da-807e-9c5b8786dd61", + "_score": 1.0, + "_source": { "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "923f83fd-0bce-4fac-8c89-ecbe7c5e9106", - "createTime": 1563982631309, - "compensationMethod": "service c", - "payloads": "AQE=", - "retryMethod": "", - "retries": 0, - "type": "TxStartedEvent" - }, { + "type": "SAGA", "serviceName": "alpha-benchmark", "instanceId": "alpha-benchmark-127.0.0.1", + "beginTime": 1563982631298, + "endTime": 1563982631320, + "state": "COMMITTED", + "subTxSize": 3, + "durationTime": 22, + "subTransactions": [...], + "events": [...] + } + },{...}] + } + } + ``` + +* 查询返回 JSON样例 + + ```json + { + "took": 17, + "timed_out": false, + "_shards": { + "total": 5, + "successful": 5, + "skipped": 0, + "failed": 0 + }, + "hits": { + "total": 4874, + "max_score": 1.0, + "hits": [{ + "_index": "alpha_global_transaction", + "_type": "alpha_global_transaction_type", + "_id": "209791a0-34f4-40da-807e-9c5b8786dd61", + "_score": 1.0, + "_source": { "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "923f83fd-0bce-4fac-8c89-ecbe7c5e9106", - "createTime": 1563982631311, - "type": "TxEndedEvent" - }, { + "type": "SAGA", "serviceName": "alpha-benchmark", "instanceId": "alpha-benchmark-127.0.0.1", - "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "localTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", - "createTime": 1563982631312, - "type": "SagaEndedEvent" - }] - } - }] + "beginTime": 1563982631298, + "endTime": 1563982631320, + "state": "COMMITTED", + "subTxSize": 3, + "durationTime": 22, + "subTransactions": [{ + "localTxId": "03fe15b2-a070-4e55-9b5b-801c2181dd0a", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "beginTime": 1563982631308, + "endTime": 1563982631309, + "state": "COMMITTED", + "durationTime": 1 + }, { + "localTxId": "923f83fd-0bce-4fac-8c89-ecbe7c5e9106", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "beginTime": 1563982631320, + "endTime": 1563982631320, + "state": "COMMITTED", + "durationTime": 0 + }, { + "localTxId": "95821ce3-2202-4e55-9343-4e6a6519821f", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "beginTime": 1563982631309, + "endTime": 1563982631309, + "state": "COMMITTED", + "durationTime": 0 + }], + "events": [{ + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "createTime": 1563982631298, + "timeout": 0, + "type": "SagaStartedEvent" + }, { + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "03fe15b2-a070-4e55-9b5b-801c2181dd0a", + "createTime": 1563982631299, + "compensationMethod": "service a", + "payloads": "AQE=", + "retryMethod": "", + "retries": 0, + "type": "TxStartedEvent" + }, { + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "03fe15b2-a070-4e55-9b5b-801c2181dd0a", + "createTime": 1563982631301, + "type": "TxEndedEvent" + }, { + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "95821ce3-2202-4e55-9343-4e6a6519821f", + "createTime": 1563982631302, + "compensationMethod": "service b", + "payloads": "AQE=", + "retryMethod": "", + "retries": 0, + "type": "TxStartedEvent" + }, { + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "95821ce3-2202-4e55-9343-4e6a6519821f", + "createTime": 1563982631304, + "type": "TxEndedEvent" + }, { + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "923f83fd-0bce-4fac-8c89-ecbe7c5e9106", + "createTime": 1563982631309, + "compensationMethod": "service c", + "payloads": "AQE=", + "retryMethod": "", + "retries": 0, + "type": "TxStartedEvent" + }, { + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "923f83fd-0bce-4fac-8c89-ecbe7c5e9106", + "createTime": 1563982631311, + "type": "TxEndedEvent" + }, { + "serviceName": "alpha-benchmark", + "instanceId": "alpha-benchmark-127.0.0.1", + "globalTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "parentTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "localTxId": "209791a0-34f4-40da-807e-9c5b8786dd61", + "createTime": 1563982631312, + "type": "SagaEndedEvent" + }] + } + }] + } } -} -``` + ``` + + 更多用法参考 [Elasticsearch APIs](https://www.elastic.co/guide/en/elasticsearch/reference/6.6/docs.html) ## 附录 diff --git a/docs/user_guide.md b/docs/user_guide.md index 9a75192..44eb353 100644 --- a/docs/user_guide.md +++ b/docs/user_guide.md @@ -786,7 +786,13 @@ Alpha instance can register to the discovery service, Omega obtains Alpha's inst Alpha can be highly available by deploying multiple instances, enable cluster support with the `alpha.cluster.master.enabled=true` parameter. +<<<<<<< HEAD [src-TransactionClientHttpRequestInterceptor]: ../omega/omega-transport/omega-transport-resttemplate/src/main/java/org/apache/servicecomb/pack/omega/transport/resttemplate/TransactionClientHttpRequestInterceptor.java -[src-TransactionHandlerInterceptor]: ../omega/omega-transport/omega-transport-resttemplate/src/main/java/org/apache/servicecomb/pack/omega/transport/resttemplate/TransactionHandlerInterceptor.java \ No newline at end of file +[src-TransactionHandlerInterceptor]: ../omega/omega-transport/omega-transport-resttemplate/src/main/java/org/apache/servicecomb/pack/omega/transport/resttemplate/TransactionHandlerInterceptor.java +======= +## Experiment + +[Alpha State Machine Mode](fsm/how_to_use_fsm_zh.md) +>>>>>>> 2af60216... SCB-1369 Update FSM documents diff --git a/docs/user_guide_zh.md b/docs/user_guide_zh.md index 0a7a70d..88bd429 100644 --- a/docs/user_guide_zh.md +++ b/docs/user_guide_zh.md @@ -773,5 +773,11 @@ public void bar(BarCommandWithTxContext cmdWithTxContext) { Alpha 可以通过部署多实例的方式保证高可用，使用 `alpha.cluster.master.enabled=true` 参数开启集群支持 +<<<<<<< HEAD [src-TransactionClientHttpRequestInterceptor]: ../omega/omega-transport/omega-transport-resttemplate/src/main/java/org/apache/servicecomb/pack/omega/transport/resttemplate/TransactionClientHttpRequestInterceptor.java -[src-TransactionHandlerInterceptor]: ../omega/omega-transport/omega-transport-resttemplate/src/main/java/org/apache/servicecomb/pack/omega/transport/resttemplate/TransactionHandlerInterceptor.java \ No newline at end of file +[src-TransactionHandlerInterceptor]: ../omega/omega-transport/omega-transport-resttemplate/src/main/java/org/apache/servicecomb/pack/omega/transport/resttemplate/TransactionHandlerInterceptor.java +======= +## 实验 + +[Alpha 状态机模式](fsm/how_to_use_fsm_zh.md) +>>>>>>> 2af60216... SCB-1369 Update FSM documents
