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add do_not_shard_destination option #866

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add do_not_shard_destination option #866

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1 change: 1 addition & 0 deletions collector/configure/configure.go
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,7 @@ type Configuration struct {
CheckpointStorage string `config:"checkpoint.storage"`
CheckpointInterval int64 `config:"checkpoint.interval"`
FullSyncExecutorDebug bool `config:"full_sync.executor.debug"`
FullSyncDoNotShardDest bool `config:"full_sync.do_not_shard_destination"`
IncrSyncDBRef bool `config:"incr_sync.dbref"`
IncrSyncExecutor int `config:"incr_sync.executor"`
IncrSyncExecutorDebug bool `config:"incr_sync.executor.debug"` // !ReplayerDurable
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5 changes: 5 additions & 0 deletions collector/docsyncer/doc_syncer.go
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Expand Up @@ -31,6 +31,11 @@ func IsShardingToSharding(fromIsSharding bool, toConn *utils.MongoCommunityConn)
return false
}

if conf.Options.FullSyncDoNotShardDest {
LOG.Info("full_sync.do_not_shard_destination set, no need to check IsShardingToSharding")
return false
}

var source, target string
if fromIsSharding {
source = "sharding"
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3 changes: 3 additions & 0 deletions conf/collector.conf
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Expand Up @@ -219,6 +219,9 @@ full_sync.collection_exist_drop = true
# background表示创建后台索引。
full_sync.create_index = none

# do not make destination collection sharding if source collection is sharding
full_sync.do_not_shard_destination = false

# convert insert to update when duplicate key found
# 如果_id存在在目的库，是否将insert语句修改为update语句。
full_sync.executor.insert_on_dup_update = false
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