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add sortEcNodesByFreeslotsDecending and sortEcNodesByFreeslotsAscending

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addressing https://github.com/chrislusf/seaweedfs/issues/1111
This commit is contained in:
Chris Lu
2019-11-12 13:47:36 -08:00
parent f056baa384
commit 40514c5362
3 changed files with 11 additions and 5 deletions
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4
weed/shell/command_ec_balance.go
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@@ -207,7 +207,7 @@ func doDeduplicateEcShards(ctx context.Context, commandEnv *CommandEnv, collecti
if len(ecNodes) <= 1 {
continue
}
sortEcNodes(ecNodes)
sortEcNodesByFreeslotsAscending(ecNodes)
fmt.Printf("ec shard %d.%d has %d copies, keeping %v\n", vid, shardId, len(ecNodes), ecNodes[0].info.Id)
if !applyBalancing {
continue
@@ -442,7 +442,7 @@ func doBalanceEcRack(ctx context.Context, commandEnv *CommandEnv, ecRack *EcRack
func pickOneEcNodeAndMoveOneShard(ctx context.Context, commandEnv *CommandEnv, expectedTotalEcShards int, existingLocation *EcNode, collection string, vid needle.VolumeId, shardId erasure_coding.ShardId, possibleDestinationEcNodes []*EcNode, applyBalancing bool) error {
sortEcNodes(possibleDestinationEcNodes)
sortEcNodesByFreeslotsDecending(possibleDestinationEcNodes)
averageShardsPerEcNode := ceilDivide(expectedTotalEcShards, len(possibleDestinationEcNodes))
for _, destEcNode := range possibleDestinationEcNodes {