# Elasticsearch-repository-s3-plugin-doesnt-work
**URL:** https://discuss.elastic.co/t/elasticsearch-repository-s3-plugin-doesnt-work/164905
**Category:** Elasticsearch
**Created:** [January 19, 2019, 4:01pm UTC](https://discuss.elastic.co/t/elasticsearch-repository-s3-plugin-doesnt-work/164905 "2019-01-19T16:01:29Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@22a33b154fedb6b33b85](https://discuss.elastic.co/u/22a33b154fedb6b33b85)
#### Post date: [January 19, 2019, 4:01pm UTC](https://discuss.elastic.co/t/elasticsearch-repository-s3-plugin-doesnt-work/164905/1 "2019-01-19T16:01:29Z")
Hello
The backup to s3 does not work. I am very embarrassed.
I would like if there is some knowledge.
Es version 6.5.0
Multi master cluster(master\*3)
・s3 bucket is open to the public.
```auto
curl -X PUT localhost:9200/_snapshot/s3_repository?pretty -H 'Content-Type: application/json' -d '
> {
> "type": "s3",
> "settings": {
> "bucket": "XXXXXX",
> "region": "XXXXXXXXXXXXXX",
> "proxy.host":"XXXXXXXXX",
> "proxy.port":"XXXXX",
> "access_key": "XXXXXXXXXXXX",
> "secret_key": "XXXXXXXXXXXXXXX",
> "protocol":"http"
> }
> }'
{
"error" : {
"root_cause" : [
{
"type" : "repository_verification_exception",
"reason" : "[s3_repository] path is not accessible on master node"
}
],
"type" : "repository_verification_exception",
"reason" : "[s3_repository] path is not accessible on master node",
"caused_by" : {
"type" : "i_o_exception",
"reason" : "Unable to upload object [tests-oAJTPMG8SLGUgRZGwGlY2g/master.dat] using a single upload",
"caused_by" : {
"type" : "amazon_s3_exception",
"reason" : "Expectation Failed (Service: Amazon S3; Status Code: 417; Error Code: 417 Expectation Failed; Request ID: null; S3 Extended Request ID: null)"
}
}
},
"status" : 500
}
```
log
```auto
org.elasticsearch.repositories.RepositoryVerificationException: [s3_repository] path is not accessible on master node
at org.elasticsearch.repositories.blobstore.BlobStoreRepository.startVerification(BlobStoreRepository.java:644) ~[elasticsearch-6.5.0.jar:6.5.0]
at org.elasticsearch.repositories.RepositoriesService.lambda$verifyRepository$2(RepositoriesService.java:218) ~[elasticsearch-6.5.0.jar:6.5.0]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:624) [elasticsearch-6.5.0.jar:6.5.0]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_181]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
Caused by: java.io.IOException: Unable to upload object [tests-oAJTPMG8SLGUgRZGwGlY2g/master.dat] using a single upload
at org.elasticsearch.repositories.s3.S3BlobContainer.executeSingleUpload(S3BlobContainer.java:199) ~[?:?]
at org.elasticsearch.repositories.s3.S3BlobContainer.lambda$writeBlob$2(S3BlobContainer.java:100) ~[?:?]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_181]
at org.elasticsearch.repositories.s3.SocketAccess.doPrivilegedIOException(SocketAccess.java:48) ~[?:?]
at org.elasticsearch.repositories.s3.S3BlobContainer.writeBlob(S3BlobContainer.java:98) ~[?:?]
at org.elasticsearch.common.blobstore.BlobContainer.writeBlobAtomic(BlobContainer.java:102) ~[elasticsearch-6.5.0.jar:6.5.0]
at org.elasticsearch.repositories.blobstore.BlobStoreRepository.startVerification(BlobStoreRepository.java:639) ~[elasticsearch-6.5.0.jar:6.5.0]
... 5 more
Caused by: com.amazonaws.services.s3.model.AmazonS3Exception: Expectation Failed (Service: Amazon S3; Status Code: 417; Error Code: 417 Expectation Failed; Request ID: null; S3 Extended Request ID: null)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1658) ~[?:?]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1322) ~[?:?]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1072) ~[?:?]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:745) ~[?:?]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:719) ~[?:?]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:701) ~[?:?]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:669) ~[?:?]
at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:651) ~[?:?]
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:515) ~[?:?]
at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4443) ~[?:?]
at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4390) ~[?:?]
at com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:1774) ~[?:?]
at org.elasticsearch.repositories.s3.S3BlobContainer.lambda$executeSingleUpload$7(S3BlobContainer.java:196) ~[?:?]
at org.elasticsearch.repositories.s3.SocketAccess.lambda$doPrivilegedVoid$0(SocketAccess.java:57) ~[?:?]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_181]
at org.elasticsearch.repositories.s3.SocketAccess.doPrivilegedVoid(SocketAccess.java:56) ~[?:?]
at org.elasticsearch.repositories.s3.S3BlobContainer.executeSingleUpload(S3BlobContainer.java:195) ~[?:?]
at org.elasticsearch.repositories.s3.S3BlobContainer.lambda$writeBlob$2(S3BlobContainer.java:100) ~[?:?]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_181]
at org.elasticsearch.repositories.s3.SocketAccess.doPrivilegedIOException(SocketAccess.java:48) ~[?:?]
at org.elasticsearch.repositories.s3.S3BlobContainer.writeBlob(S3BlobContainer.java:98) ~[?:?]
at org.elasticsearch.common.blobstore.BlobContainer.writeBlobAtomic(BlobContainer.java:102) ~[elasticsearch-6.5.0.jar:6.5.0]
at org.elasticsearch.repositories.blobstore.BlobStoreRepository.startVerification(BlobStoreRepository.java:639) ~[elasticsearch-6.5.0.jar:6.5.0]
... 5 more
```
It will be a great help if you can do it with a slight clue.
---
### Author:  [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)
#### Post date: [January 19, 2019, 7:51pm UTC](https://discuss.elastic.co/t/elasticsearch-repository-s3-plugin-doesnt-work/164905/2 "2019-01-19T19:51:52Z")
It sounds like your proxy does not support S3, specifically the `Expect: 100-continue` header. I found [an article about this problem with Squid](https://gionn.net/2010/09/07/how-to-circumvent-the-417-expectation-failed-behind-a-squid-proxy/).
---
### Author:  [@22a33b154fedb6b33b85](https://discuss.elastic.co/u/22a33b154fedb6b33b85)
#### Post date: [January 20, 2019, 5:26am UTC](https://discuss.elastic.co/t/elasticsearch-repository-s3-plugin-doesnt-work/164905/3 "2019-01-20T05:26:17Z")
@DavidTurner
Thank you! ! It was very helpful.
change the setting of proxy.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 17, 2019, 5:26am UTC](https://discuss.elastic.co/t/elasticsearch-repository-s3-plugin-doesnt-work/164905/4 "2019-02-17T05:26:24Z")
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