ozlerhakan created SOLR-16670:
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Summary: Couldn't restore a backed up config set from S3
Key: SOLR-16670
URL: https://issues.apache.org/jira/browse/SOLR-16670
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: Backup/Restore
Affects Versions: 9.1.1, 9.1
Reporter: ozlerhakan
Solr 9.1.x doesn't currently allow me to make a full restore of a backup where
the data and config set are stored on a S3 bucket. The error I have received
each run is "The specified key does not exist". Additionally, the full message
is:
{code:java}
An AmazonServiceException was thrown! [serviceName=S3] [awsRequestId=2C6]
[httpStatus=404] [s3ErrorCode=NoSuchKey] [message=The specified key does not
exist.] {code}
After investigating the problem further, I have found that the path used to
control whether it's a directory or not in the
[isDirectory|https://github.com/apache/solr/blob/branch_9_1/solr/modules/s3-repository/src/java/org/apache/solr/s3/S3StorageClient.java#L323]
method makes the
`[S3Client.headObject|https://github.com/apache/solr/blob/branch_9_1/solr/modules/s3-repository/src/java/org/apache/solr/s3/S3StorageClient.java#L328]`
method panic. On
[line|https://github.com/apache/solr/blob/branch_9_1/solr/modules/s3-repository/src/java/org/apache/solr/s3/S3StorageClient.java#L324]
324, the path pointing to a file is transformed into a path leading to a
slash. When a path, for example, is
"path1/path2/backup-name/collection-name/zk_backup_0/configs/config-set-v1/configoverlay.json",
`sanitizedDirPath` adds a _slash_ "/" character to the end of the path as
"path1/path2/backup-name/collection-name/zk_backup_0/configs/config-set-v1/configoverlay.json{color:#ff0000}/{color}".
Although I'm able to restore the backup if the cluster already has the config
schema definition in the zk, I cannot restore the backed up config schema files
while creating an empty cluster due to this error.
For the sake of this question, here I am describing the other parts;
Backup definition:
{code:java}
<backup>
<repository name="s3-repo" class="org.apache.solr.s3.S3BackupRepository"
default="false">
<str name="s3.bucket.name">com.dev.bucket.backup.folder</str>
<str name="s3.region">us-east-2</str>
</repository>
</backup> {code}
The backup folder structure on S3:
{code:java}
.
└── bucket-name
└── path1
└── path2
└── backup-name
└── collection-name
├── backup_0.properties
├── index ...
├── shard_backup_metadata
│ └── md_shard1_0.json
└── zk_backup_0
├── collection_state.json
└── configs
└── config-set-v1
├── configoverlay.json
├── solrconfig.xml
├── stopwords.txt
└── synonyms.txt {code}
The cURL request I use for restore:
{code:java}
curl -i -X POST \
-H "Content-Type:application/json" \
-d \
'{
"restore-collection": {
"name": "backup-name",
"collection": "collection-name-restored",
"location": "path1/path2/"
"repository": "s3-pro",
}
}' \
'http://localhost:8983/api/c' {code}
This is the original
[question|https://lists.apache.org/thread/krrn3z5q4891fzcxs5dgcgkoohs86ncs]
providing the same description.
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