mirror of
https://github.com/minio/minio.git
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0286e61aee
Modified the LogIf function to log only if the error passed is not on the ignored errors list. Currently, only disk not found error is added to the list. Added a new function in logger package called LogAlwaysIf, which will print on any error. Fixes #5997
271 lines
8.6 KiB
Go
271 lines
8.6 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"fmt"
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"os"
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"time"
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"github.com/minio/minio/cmd/logger"
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)
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var printEndpointError = func() func(Endpoint, error) {
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printOnce := make(map[Endpoint]map[string]bool)
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return func(endpoint Endpoint, err error) {
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reqInfo := (&logger.ReqInfo{}).AppendTags("endpoint", endpoint.Host)
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ctx := logger.SetReqInfo(context.Background(), reqInfo)
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m, ok := printOnce[endpoint]
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if !ok {
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m = make(map[string]bool)
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m[err.Error()] = true
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printOnce[endpoint] = m
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logger.LogAlwaysIf(ctx, err)
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return
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}
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if m[err.Error()] {
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return
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}
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m[err.Error()] = true
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logger.LogAlwaysIf(ctx, err)
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}
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}()
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// Migrates backend format of local disks.
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func formatXLMigrateLocalEndpoints(endpoints EndpointList) error {
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for _, endpoint := range endpoints {
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if !endpoint.IsLocal {
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continue
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}
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formatPath := pathJoin(endpoint.Path, minioMetaBucket, formatConfigFile)
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if _, err := os.Stat(formatPath); err != nil {
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if os.IsNotExist(err) {
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continue
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}
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return err
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}
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if err := formatXLMigrate(endpoint.Path); err != nil {
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return err
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}
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}
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return nil
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}
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// Cleans up tmp directory of local disks.
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func formatXLCleanupTmpLocalEndpoints(endpoints EndpointList) error {
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for _, endpoint := range endpoints {
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if !endpoint.IsLocal {
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continue
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}
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formatPath := pathJoin(endpoint.Path, minioMetaBucket, formatConfigFile)
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if _, err := os.Stat(formatPath); err != nil {
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if os.IsNotExist(err) {
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continue
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}
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return err
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}
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if err := removeAll(pathJoin(endpoint.Path, minioMetaTmpBucket)); err != nil {
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return err
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}
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if err := mkdirAll(pathJoin(endpoint.Path, minioMetaTmpBucket), 0777); err != nil {
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return err
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}
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}
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return nil
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}
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// validate reference format against list of XL formats.
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func validateXLFormats(format *formatXLV3, formats []*formatXLV3, endpoints EndpointList, setCount, drivesPerSet int) error {
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for i := range formats {
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if formats[i] == nil {
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continue
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}
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if err := formatXLV3Check(format, formats[i]); err != nil {
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return fmt.Errorf("%s format error: %s", endpoints[i], err)
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}
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}
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if len(format.XL.Sets) != setCount {
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return fmt.Errorf("Current backend format is inconsistent with input args (%s), Expected set count %d, got %d", endpoints, len(format.XL.Sets), setCount)
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}
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if len(format.XL.Sets[0]) != drivesPerSet {
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return fmt.Errorf("Current backend format is inconsistent with input args (%s), Expected drive count per set %d, got %d", endpoints, len(format.XL.Sets[0]), drivesPerSet)
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}
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return nil
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}
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// Following error message is added to fix a regression in release
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// RELEASE.2018-03-16T22-52-12Z after migrating v1 to v2 to v3. This
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// migration failed to capture '.This' field properly which indicates
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// the disk UUID association. Below error message is returned when
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// we see this situation in format.json, for more info refer
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// https://github.com/minio/minio/issues/5667
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var errXLV3ThisEmpty = fmt.Errorf("XL format version 3 has This field empty")
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// connect to list of endpoints and load all XL disk formats, validate the formats are correct
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// and are in quorum, if no formats are found attempt to initialize all of them for the first
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// time. additionally make sure to close all the disks used in this attempt.
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func connectLoadInitFormats(firstDisk bool, endpoints EndpointList, setCount, drivesPerSet int) (*formatXLV3, error) {
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storageDisks, err := initStorageDisks(endpoints)
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if err != nil {
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return nil, err
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}
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defer closeStorageDisks(storageDisks)
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// Attempt to load all `format.json` from all disks.
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formatConfigs, sErrs := loadFormatXLAll(storageDisks)
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// Pre-emptively check if one of the formatted disks
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// is invalid. This function returns success for the
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// most part unless one of the formats is not consistent
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// with expected XL format. For example if a user is
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// trying to pool FS backend into an XL set.
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if err = checkFormatXLValues(formatConfigs); err != nil {
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return nil, err
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}
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for i, sErr := range sErrs {
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if _, ok := formatCriticalErrors[sErr]; ok {
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return nil, fmt.Errorf("Disk %s: %s", endpoints[i], sErr)
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}
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}
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// All disks report unformatted we should initialized everyone.
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if shouldInitXLDisks(sErrs) && firstDisk {
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return initFormatXL(context.Background(), storageDisks, setCount, drivesPerSet)
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}
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// Return error when quorum unformatted disks - indicating we are
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// waiting for first server to be online.
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if quorumUnformattedDisks(sErrs) && !firstDisk {
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return nil, errNotFirstDisk
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}
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// Return error when quorum unformatted disks but waiting for rest
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// of the servers to be online.
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if quorumUnformattedDisks(sErrs) && firstDisk {
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return nil, errFirstDiskWait
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}
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// Following function is added to fix a regressions which was introduced
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// in release RELEASE.2018-03-16T22-52-12Z after migrating v1 to v2 to v3.
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// This migration failed to capture '.This' field properly which indicates
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// the disk UUID association. Below function is called to handle and fix
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// this regression, for more info refer https://github.com/minio/minio/issues/5667
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if err = fixFormatXLV3(storageDisks, endpoints, formatConfigs); err != nil {
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return nil, err
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}
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// If any of the .This field is still empty, we return error.
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if formatXLV3ThisEmpty(formatConfigs) {
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return nil, errXLV3ThisEmpty
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}
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format, err := getFormatXLInQuorum(formatConfigs)
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if err != nil {
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return nil, err
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}
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// Validate all format configs with reference format.
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if err = validateXLFormats(format, formatConfigs, endpoints, setCount, drivesPerSet); err != nil {
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return nil, err
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}
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// Get the deploymentID if set.
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format.ID, err = formatXLGetDeploymentID(format, formatConfigs)
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if err != nil {
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return nil, err
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}
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if format.ID == "" {
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if err = formatXLFixDeploymentID(context.Background(), storageDisks, format); err != nil {
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return nil, err
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}
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}
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logger.SetDeploymentID(format.ID)
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if err = formatXLFixLocalDeploymentID(context.Background(), storageDisks, format); err != nil {
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return nil, err
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}
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return format, nil
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}
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// Format disks before initialization of object layer.
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func waitForFormatXL(ctx context.Context, firstDisk bool, endpoints EndpointList, setCount, disksPerSet int) (format *formatXLV3, err error) {
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if len(endpoints) == 0 || setCount == 0 || disksPerSet == 0 {
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return nil, errInvalidArgument
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}
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if err = formatXLMigrateLocalEndpoints(endpoints); err != nil {
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return nil, err
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}
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if err = formatXLCleanupTmpLocalEndpoints(endpoints); err != nil {
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return nil, err
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}
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// Done channel is used to close any lingering retry routine, as soon
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// as this function returns.
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doneCh := make(chan struct{})
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// Indicate to our retry routine to exit cleanly, upon this function return.
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defer close(doneCh)
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// prepare getElapsedTime() to calculate elapsed time since we started trying formatting disks.
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// All times are rounded to avoid showing milli, micro and nano seconds
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formatStartTime := time.Now().Round(time.Second)
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getElapsedTime := func() string {
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return time.Now().Round(time.Second).Sub(formatStartTime).String()
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}
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// Wait on the jitter retry loop.
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retryTimerCh := newRetryTimerSimple(doneCh)
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for {
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select {
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case _ = <-retryTimerCh:
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format, err := connectLoadInitFormats(firstDisk, endpoints, setCount, disksPerSet)
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if err != nil {
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switch err {
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case errNotFirstDisk:
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// Fresh setup, wait for first server to be up.
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logger.Info("Waiting for the first server to format the disks.")
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continue
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case errFirstDiskWait:
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// Fresh setup, wait for other servers to come up.
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logger.Info("Waiting for all other servers to be online to format the disks.")
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continue
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case errXLReadQuorum:
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// no quorum available continue to wait for minimum number of servers.
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logger.Info("Waiting for a minimum of %d disks to come online (elapsed %s)\n", len(endpoints)/2, getElapsedTime())
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continue
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case errXLV3ThisEmpty:
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// need to wait for this error to be healed, so continue.
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continue
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default:
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// For all other unhandled errors we exit and fail.
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return nil, err
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}
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}
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return format, nil
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case <-globalOSSignalCh:
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return nil, fmt.Errorf("Initializing data volumes gracefully stopped")
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}
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}
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}
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