916ec63af6
This is a new revision of the discovery server. Relevant changes and non-changes: - Protocol towards clients is unchanged. - Recommended large scale design is still to be deployed nehind nginx (I tested, and it's still a lot faster at terminating TLS). - Database backend is leveldb again, only. It scales enough, is easy to setup, and we don't need any backend to take care of. - Server supports replication. This is a simple TCP channel - protect it with a firewall when deploying over the internet. (We deploy this within the same datacenter, and with firewall.) Any incoming client announces are sent over the replication channel(s) to other peer discosrvs. Incoming replication changes are applied to the database as if they came from clients, but without the TLS/certificate overhead. - Metrics are exposed using the prometheus library, when enabled. - The database values and replication protocol is protobuf, because JSON was quite CPU intensive when I tried that and benchmarked it. - The "Retry-After" value for failed lookups gets slowly increased from a default of 120 seconds, by 5 seconds for each failed lookup, independently by each discosrv. This lowers the query load over time for clients that are never seen. The Retry-After maxes out at 3600 after a couple of weeks of this increase. The number of failed lookups is stored in the database, now and then (avoiding making each lookup a database put). All in all this means clients can be pointed towards a cluster using just multiple A / AAAA records to gain both load sharing and redundancy (if one is down, clients will talk to the remaining ones). GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4648
62 lines
4.6 KiB
Go
62 lines
4.6 KiB
Go
/*
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* Minio Go Library for Amazon S3 Compatible Cloud Storage
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* Copyright 2015-2017 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 minio
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// Non exhaustive list of AWS S3 standard error responses -
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// http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
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var s3ErrorResponseMap = map[string]string{
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"AccessDenied": "Access Denied.",
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"BadDigest": "The Content-Md5 you specified did not match what we received.",
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"EntityTooSmall": "Your proposed upload is smaller than the minimum allowed object size.",
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"EntityTooLarge": "Your proposed upload exceeds the maximum allowed object size.",
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"IncompleteBody": "You did not provide the number of bytes specified by the Content-Length HTTP header.",
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"InternalError": "We encountered an internal error, please try again.",
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"InvalidAccessKeyId": "The access key ID you provided does not exist in our records.",
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"InvalidBucketName": "The specified bucket is not valid.",
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"InvalidDigest": "The Content-Md5 you specified is not valid.",
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"InvalidRange": "The requested range is not satisfiable",
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"MalformedXML": "The XML you provided was not well-formed or did not validate against our published schema.",
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"MissingContentLength": "You must provide the Content-Length HTTP header.",
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"MissingContentMD5": "Missing required header for this request: Content-Md5.",
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"MissingRequestBodyError": "Request body is empty.",
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"NoSuchBucket": "The specified bucket does not exist",
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"NoSuchBucketPolicy": "The bucket policy does not exist",
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"NoSuchKey": "The specified key does not exist.",
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"NoSuchUpload": "The specified multipart upload does not exist. The upload ID may be invalid, or the upload may have been aborted or completed.",
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"NotImplemented": "A header you provided implies functionality that is not implemented",
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"PreconditionFailed": "At least one of the pre-conditions you specified did not hold",
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"RequestTimeTooSkewed": "The difference between the request time and the server's time is too large.",
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"SignatureDoesNotMatch": "The request signature we calculated does not match the signature you provided. Check your key and signing method.",
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"MethodNotAllowed": "The specified method is not allowed against this resource.",
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"InvalidPart": "One or more of the specified parts could not be found.",
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"InvalidPartOrder": "The list of parts was not in ascending order. The parts list must be specified in order by part number.",
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"InvalidObjectState": "The operation is not valid for the current state of the object.",
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"AuthorizationHeaderMalformed": "The authorization header is malformed; the region is wrong.",
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"MalformedPOSTRequest": "The body of your POST request is not well-formed multipart/form-data.",
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"BucketNotEmpty": "The bucket you tried to delete is not empty",
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"AllAccessDisabled": "All access to this bucket has been disabled.",
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"MalformedPolicy": "Policy has invalid resource.",
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"MissingFields": "Missing fields in request.",
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"AuthorizationQueryParametersError": "Error parsing the X-Amz-Credential parameter; the Credential is mal-formed; expecting \"<YOUR-AKID>/YYYYMMDD/REGION/SERVICE/aws4_request\".",
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"MalformedDate": "Invalid date format header, expected to be in ISO8601, RFC1123 or RFC1123Z time format.",
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"BucketAlreadyOwnedByYou": "Your previous request to create the named bucket succeeded and you already own it.",
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"InvalidDuration": "Duration provided in the request is invalid.",
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"XAmzContentSHA256Mismatch": "The provided 'x-amz-content-sha256' header does not match what was computed.",
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// Add new API errors here.
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}
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