1164fc60f3
This PR brings semver capabilities in our RPC layer to ensure that we can upgrade the servers in rolling fashion while keeping I/O in progress. This is only a framework change the functionality remains the same as such and we do not have any special API changes for now. But in future when we bring in API changes we will be able to upgrade servers without a downtime. Additional change in this PR is to not abort when serverVersions mismatch in a distributed cluster, instead wait for the quorum treat the situation as if the server is down. This allows for administrator to properly upgrade all the servers in the cluster. Fixes #5393
60 lines
2.4 KiB
Go
60 lines
2.4 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015, 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 "errors"
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// errInvalidArgument means that input argument is invalid.
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var errInvalidArgument = errors.New("Invalid arguments specified")
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// errSignatureMismatch means signature did not match.
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var errSignatureMismatch = errors.New("Signature does not match")
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// used when token used for authentication by the MinioBrowser has expired
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var errInvalidToken = errors.New("Invalid token")
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// used when we deal with data larger than expected
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var errSizeUnexpected = errors.New("Data size larger than expected")
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// used when we deal with data with unknown size
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var errSizeUnspecified = errors.New("Data size is unspecified")
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// When upload object size is greater than 5G in a single PUT/POST operation.
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var errDataTooLarge = errors.New("Object size larger than allowed limit")
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// When upload object size is less than what was expected.
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var errDataTooSmall = errors.New("Object size smaller than expected")
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// errServerNotInitialized - server not initialized.
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var errServerNotInitialized = errors.New("Server not initialized, please try again")
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// errRPCAPIVersionUnsupported - unsupported rpc API version.
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var errRPCAPIVersionUnsupported = errors.New("Unsupported rpc API version")
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// errServerTimeMismatch - server times are too far apart.
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var errServerTimeMismatch = errors.New("Server times are too far apart")
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// errInvalidBucketName - bucket name is reserved for Minio, usually
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// returned for 'minio', '.minio.sys', buckets with capital letters.
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var errInvalidBucketName = errors.New("The specified bucket is not valid")
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// errInvalidRange - returned when given range value is not valid.
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var errInvalidRange = errors.New("Invalid range")
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// errInvalidRangeSource - returned when given range value exceeds
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// the source object size.
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var errInvalidRangeSource = errors.New("Range specified exceeds source object size")
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