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Improve init messages for distributed setup (#5786)

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Fixes #5531
This commit is contained in:
Harshavardhana 2018-04-12 15:43:38 -07:00 committed by GitHub
parent e39de65367
commit 1f07545e2a
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3 changed files with 26 additions and 4 deletions
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5
cmd/format-xl.go
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@ -314,6 +314,11 @@ func shouldInitXLDisks(errs []error) bool {
return countErrs(errs, errUnformattedDisk) == len(errs)
}
// Check if unformatted disks are equal to write quorum.
func quorumUnformattedDisks(errs []error) bool {
return countErrs(errs, errUnformattedDisk) >= (len(errs)/2)+1
}
// loadFormatXLAll - load all format config from all input disks in parallel.
func loadFormatXLAll(storageDisks []StorageAPI) ([]*formatXLV3, []error) {
// Initialize sync waitgroup.

22
cmd/prepare-storage.go
View File

@ -145,13 +145,23 @@ func connectLoadInitFormats(firstDisk bool, endpoints EndpointList, setCount, dr
}
}
if shouldInitXLDisks(sErrs) {
if !firstDisk {
return nil, errNotFirstDisk
}
// All disks report unformatted we should initialized everyone.
if shouldInitXLDisks(sErrs) && firstDisk {
return initFormatXL(context.Background(), storageDisks, setCount, drivesPerSet)
}
// Return error when quorum unformatted disks - indicating we are
// waiting for first server to be online.
if quorumUnformattedDisks(sErrs) && !firstDisk {
return nil, errNotFirstDisk
}
// Return error when quorum unformatted disks but waiting for rest
// of the servers to be online.
if quorumUnformattedDisks(sErrs) && firstDisk {
return nil, errFirstDiskWait
}
// Following function is added to fix a regressions which was introduced
// in release RELEASE.2018-03-16T22-52-12Z after migrating v1 to v2 to v3.
// This migration failed to capture '.This' field properly which indicates
@ -219,6 +229,10 @@ func waitForFormatXL(ctx context.Context, firstDisk bool, endpoints EndpointList
// Fresh setup, wait for first server to be up.
logger.Info("Waiting for the first server to format the disks.")
continue
case errFirstDiskWait:
// Fresh setup, wait for other servers to come up.
logger.Info("Waiting for all other servers to be online to format the disks.")
continue
case errXLReadQuorum:
// no quorum available continue to wait for minimum number of servers.
logger.Info("Waiting for a minimum of %d disks to come online (elapsed %s)\n", len(endpoints)/2, getElapsedTime())

3
cmd/typed-errors.go
View File

@ -62,3 +62,6 @@ var errInvalidRangeSource = errors.New("Range specified exceeds source object si
// error returned by disks which are to be initialized are waiting for the
// first server to initialize them in distributed set to initialize them.
var errNotFirstDisk = errors.New("Not first disk")
// error returned by first disk waiting to initialize other servers.
var errFirstDiskWait = errors.New("Waiting on other disks")