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fix: possible connection leaks in sets init, heal (#9263)

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Harshavardhana 2020-04-03 18:06:31 -07:00 committed by GitHub
parent c6e62b9175
commit 4714958e99
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 30 additions and 12 deletions
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16
cmd/prepare-storage.go
View File

@ -221,10 +221,16 @@ func IsServerResolvable(endpoint Endpoint) error {
// connect to list of endpoints and load all XL disk formats, validate the formats are correct
// and are in quorum, if no formats are found attempt to initialize all of them for the first
// time. additionally make sure to close all the disks used in this attempt.
func connectLoadInitFormats(retryCount int, firstDisk bool, endpoints Endpoints, zoneCount, setCount, drivesPerSet int, deploymentID string) ([]StorageAPI, *formatXLV3, error) {
func connectLoadInitFormats(retryCount int, firstDisk bool, endpoints Endpoints, zoneCount, setCount, drivesPerSet int, deploymentID string) (storageDisks []StorageAPI, format *formatXLV3, err error) {
// Initialize all storage disks
storageDisks, errs := initStorageDisksWithErrors(endpoints)
defer func(storageDisks []StorageAPI) {
if err != nil {
closeStorageDisks(storageDisks)
}
}(storageDisks)
for i, err := range errs {
if err != nil {
if err != errDiskNotFound {
@ -256,7 +262,7 @@ func connectLoadInitFormats(retryCount int, firstDisk bool, endpoints Endpoints,
// most part unless one of the formats is not consistent
// with expected XL format. For example if a user is
// trying to pool FS backend into an XL set.
if err := checkFormatXLValues(formatConfigs, drivesPerSet); err != nil {
if err = checkFormatXLValues(formatConfigs, drivesPerSet); err != nil {
return nil, nil, err
}
@ -266,7 +272,7 @@ func connectLoadInitFormats(retryCount int, firstDisk bool, endpoints Endpoints,
zoneCount, setCount, drivesPerSet)
// Initialize erasure code format on disks
format, err := initFormatXL(context.Background(), storageDisks, setCount, drivesPerSet, deploymentID)
format, err = initFormatXL(context.Background(), storageDisks, setCount, drivesPerSet, deploymentID)
if err != nil {
return nil, nil, err
}
@ -293,7 +299,7 @@ func connectLoadInitFormats(retryCount int, firstDisk bool, endpoints Endpoints,
// This migration failed to capture '.This' field properly which indicates
// the disk UUID association. Below function is called to handle and fix
// this regression, for more info refer https://github.com/minio/minio/issues/5667
if err := fixFormatXLV3(storageDisks, endpoints, formatConfigs); err != nil {
if err = fixFormatXLV3(storageDisks, endpoints, formatConfigs); err != nil {
return nil, nil, err
}
@ -302,7 +308,7 @@ func connectLoadInitFormats(retryCount int, firstDisk bool, endpoints Endpoints,
return nil, nil, errXLV3ThisEmpty
}
format, err := getFormatXLInQuorum(formatConfigs)
format, err = getFormatXLInQuorum(formatConfigs)
if err != nil {
return nil, nil, err
}

20
cmd/xl-sets.go
View File

@ -238,6 +238,9 @@ func (s *xlSets) connectDisks() {
}
disk.SetDiskID(format.XL.This)
s.xlDisksMu.Lock()
if s.xlDisks[setIndex][diskIndex] != nil {
s.xlDisks[setIndex][diskIndex].Close()
}
s.xlDisks[setIndex][diskIndex] = disk
s.xlDisksMu.Unlock()
go func(setIndex int) {
@ -333,16 +336,21 @@ func newXLSets(endpoints Endpoints, storageDisks []StorageAPI, format *formatXLV
endpoints = append(endpoints, s.endpoints[i*drivesPerSet+j])
// Rely on endpoints list to initialize, init lockers and available disks.
s.xlLockers[i][j] = newLockAPI(s.endpoints[i*drivesPerSet+j])
if storageDisks[i*drivesPerSet+j] == nil {
disk := storageDisks[i*drivesPerSet+j]
if disk == nil {
continue
}
diskID, derr := disk.GetDiskID()
if derr != nil {
disk.Close()
continue
}
if diskID, derr := storageDisks[i*drivesPerSet+j].GetDiskID(); derr == nil {
m, n, err := findDiskIndexByDiskID(format, diskID)
if err != nil {
disk.Close()
continue
}
s.xlDisks[m][n] = storageDisks[i*drivesPerSet+j]
}
s.xlDisks[m][n] = disk
}
// Initialize xl objects for a given set.
@ -1375,11 +1383,13 @@ func (s *xlSets) ReloadFormat(ctx context.Context, dryRun bool) (err error) {
diskID, err := disk.GetDiskID()
if err != nil {
disk.Close()
continue
}
m, n, err := findDiskIndexByDiskID(refFormat, diskID)
if err != nil {
disk.Close()
continue
}
@ -1583,11 +1593,13 @@ func (s *xlSets) HealFormat(ctx context.Context, dryRun bool) (res madmin.HealRe
diskID, err := disk.GetDiskID()
if err != nil {
disk.Close()
continue
}
m, n, err := findDiskIndexByDiskID(refFormat, diskID)
if err != nil {
disk.Close()
continue
}