Jianwei Zhang
Jianwei Zhang
MongoDB的sharding模式下Upsert操作要求必须指定sharding key，使用到Upsert操作的collection有：stat、job_latest_log，为了最小改动的方式解决这个问题； 针对job_latest_log，只需要创建collection时指定sharding key即可，不涉及代码修改： `db.runCommand({shardcollection:"cronsun1.job_latest_log", key:{node:1, hostname:1, ip:1, jobId:1, jobGroup:1}});` 针对stat，需要将其拆分为两个：stat、daily_stat，然后分别指定sharding key： ``` db.runCommand({shardcollection:"cronsun1.stat", key:{name:1}}); db.runCommand({shardcollection:"cronsun1.daily_stat", key:{name:1, date:1}}); ```
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