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etcdserver: Implement running defrag if freeable space will exceed privided threshold

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This commit is contained in:
Marek Siarkowicz
2021-05-10 13:50:09 +02:00
parent 5bad818c70
commit efc8505739
7 changed files with 52 additions and 0 deletions
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26
server/etcdserver/server.go
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@@ -362,6 +362,13 @@ func NewServer(cfg config.ServerConfig) (srv *EtcdServer, err error) {
ci.SetBackend(be)
cindex.CreateMetaBucket(be.BatchTx())
if cfg.ExperimentalBootstrapDefragThresholdMegabytes != 0 {
err := maybeDefragBackend(cfg, be)
if err != nil {
return nil, err
}
}
defer func() {
if err != nil {
be.Close()
@@ -2580,3 +2587,22 @@ func (s *EtcdServer) IsMemberExist(id types.ID) bool {
func (s *EtcdServer) raftStatus() raft.Status {
return s.r.Node.Status()
}
func maybeDefragBackend(cfg config.ServerConfig, be backend.Backend) error {
size := be.Size()
sizeInUse := be.SizeInUse()
freeableMemory := uint(size - sizeInUse)
thresholdBytes := cfg.ExperimentalBootstrapDefragThresholdMegabytes * 1024 * 1024
if freeableMemory < thresholdBytes {
cfg.Logger.Info("Skipping defragmentation",
zap.Int64("current-db-size-bytes", size),
zap.String("current-db-size", humanize.Bytes(uint64(size))),
zap.Int64("current-db-size-in-use-bytes", sizeInUse),
zap.String("current-db-size-in-use", humanize.Bytes(uint64(sizeInUse))),
zap.Uint("experimental-bootstrap-defrag-threshold-bytes", thresholdBytes),
zap.String("experimental-bootstrap-defrag-threshold", humanize.Bytes(uint64(thresholdBytes))),
)
return nil
}
return be.Defrag()
}