#64 任务启动时简况信息实现方案优化问题

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created 2 years ago by shamartor · 2 comments
# 问题描述 任务简况信息是任务在启动时,按时间顺序记录下来的一些发送事件,比如任务调度事件,拉取镜像事件,启动成功事件等,用户可通过对这些事件发生观测进一步了解任务状态. ![简况](https://git.openi.org.cn/attachments/17515873-d2ee-471b-9a9a-fa65bde6f5b8) 该功能已在Octopus之前的版本中存在,但运行时发现,获取任务简况的信息时延迟时间很久,甚至不发获取.目前初步分析,随着集群任务量较大时,问题更加明显 # 拟解决 阅读这一块实现代码后,初步优化方案有两步: 1. 目前实现方式中,每当启动任务时,都有实例化一个任务级别的ClientInformer,这样与k8s apiserver的连接数会随着任务量增多而增多,考虑减少Informer数量,https://git.openi.org.cn/OpenI/octopus/src/branch/master/server/taskset/pkg/pipeline/services/kubernetes/logs_helper.go#L60 2. 任务的事件记录目前是累加的方式存放在数据库`job`表的`stateSummary`字段中,考虑将这些数据存放在时序数据库中,https://git.openi.org.cn/OpenI/octopus/src/branch/master/server/taskset/pkg/pipeline/models/job/job.go#L39
shamartor commented 2 years ago
Poster
相关问题: #27 #12 #11
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optimizing
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hackmong was assigned by shamartor 2 years ago
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hackmong commented 2 years ago
Collaborator
已采用方案: 1. 不再在pipeline服务的代码中主动采集任务事件,并不再使用job表里的statesummary字段储存事件信息; 2. 使用时序数据库influxdb存储任务事件,时序数据库将创建octopus数据库,events数据表,数据库默认用户名和密码都为octopus,具体可部署时在values.yaml中配置 3. 使用第三方开源服务eventrouter,该服务将自动采集任务信息,写入到events数据表中,写入的字段包括:tag keys: cluster_name, component, hostname, kind, namespace_name, object_name, pod_id, reason, type, uid; field key: message; 4. 前端可通过/trainmanage/trainjobevent和/developmanage/notebook向openai-server请求任务事件;参数包括: id: 任务jobId pageIndex: 分页索引,从1开始 pageSize: 分页大小 taskIndex:子任务索引,从1开始 replicaIndex:副本索引,从1开始 返回的结果包括: totalSize: 该副本事件总数, jobEvents: 事件数组, 数组每一项包括: timestamp:事件发生时间, name: 副本名, reason: 事件原因, message: 事件消息
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