[jira] [Updated] (FLINK-5908) Blob Cache can (rarely) get corrupted on failed blob downloads

2017-06-15 Thread Nico Kruber (JIRA)

 [ 
https://issues.apache.org/jira/browse/FLINK-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nico Kruber updated FLINK-5908:
---
Component/s: Network

> Blob Cache can (rarely) get corrupted on failed blob downloads
> --
>
> Key: FLINK-5908
> URL: https://issues.apache.org/jira/browse/FLINK-5908
> Project: Flink
>  Issue Type: Bug
>  Components: Distributed Coordination, Network
>Affects Versions: 1.2.0, 1.3.0, 1.4.0
>Reporter: Stephan Ewen
>
> The Blob Cache downloads files directly to the target file location.
> While it tries to clean up failed attempts, there is a change that this 
> cleanup does not complete.
> In that case, we have a corrupt file at the target location. The blob cache 
> then assumes that it already has the file cached already and future requests 
> do not attempt to re-download the file.
> The fix would be to download to a temp file name, validate the integrity, and 
> rename to the target file path when the validation succeeds.
> The validation for "content addressable" could even include validating the 
> checksum hash.



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[jira] [Updated] (FLINK-5908) Blob Cache can (rarely) get corrupted on failed blob downloads

2017-06-15 Thread Nico Kruber (JIRA)

 [ 
https://issues.apache.org/jira/browse/FLINK-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nico Kruber updated FLINK-5908:
---
Affects Version/s: 1.4.0
   1.3.0

> Blob Cache can (rarely) get corrupted on failed blob downloads
> --
>
> Key: FLINK-5908
> URL: https://issues.apache.org/jira/browse/FLINK-5908
> Project: Flink
>  Issue Type: Bug
>  Components: Distributed Coordination, Network
>Affects Versions: 1.2.0, 1.3.0, 1.4.0
>Reporter: Stephan Ewen
>
> The Blob Cache downloads files directly to the target file location.
> While it tries to clean up failed attempts, there is a change that this 
> cleanup does not complete.
> In that case, we have a corrupt file at the target location. The blob cache 
> then assumes that it already has the file cached already and future requests 
> do not attempt to re-download the file.
> The fix would be to download to a temp file name, validate the integrity, and 
> rename to the target file path when the validation succeeds.
> The validation for "content addressable" could even include validating the 
> checksum hash.



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[jira] [Updated] (FLINK-5908) Blob Cache can (rarely) get corrupted on failed blob downloads

2017-06-15 Thread Nico Kruber (JIRA)

 [ 
https://issues.apache.org/jira/browse/FLINK-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nico Kruber updated FLINK-5908:
---
Fix Version/s: (was: 1.4.0)
   (was: 1.2.2)

> Blob Cache can (rarely) get corrupted on failed blob downloads
> --
>
> Key: FLINK-5908
> URL: https://issues.apache.org/jira/browse/FLINK-5908
> Project: Flink
>  Issue Type: Bug
>  Components: Distributed Coordination
>Affects Versions: 1.2.0
>Reporter: Stephan Ewen
>
> The Blob Cache downloads files directly to the target file location.
> While it tries to clean up failed attempts, there is a change that this 
> cleanup does not complete.
> In that case, we have a corrupt file at the target location. The blob cache 
> then assumes that it already has the file cached already and future requests 
> do not attempt to re-download the file.
> The fix would be to download to a temp file name, validate the integrity, and 
> rename to the target file path when the validation succeeds.
> The validation for "content addressable" could even include validating the 
> checksum hash.



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[jira] [Updated] (FLINK-5908) Blob Cache can (rarely) get corrupted on failed blob downloads

2017-05-31 Thread Robert Metzger (JIRA)

 [ 
https://issues.apache.org/jira/browse/FLINK-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Robert Metzger updated FLINK-5908:
--
Fix Version/s: (was: 1.3.0)
   1.4.0

> Blob Cache can (rarely) get corrupted on failed blob downloads
> --
>
> Key: FLINK-5908
> URL: https://issues.apache.org/jira/browse/FLINK-5908
> Project: Flink
>  Issue Type: Bug
>  Components: Distributed Coordination
>Affects Versions: 1.2.0
>Reporter: Stephan Ewen
> Fix For: 1.2.2, 1.4.0
>
>
> The Blob Cache downloads files directly to the target file location.
> While it tries to clean up failed attempts, there is a change that this 
> cleanup does not complete.
> In that case, we have a corrupt file at the target location. The blob cache 
> then assumes that it already has the file cached already and future requests 
> do not attempt to re-download the file.
> The fix would be to download to a temp file name, validate the integrity, and 
> rename to the target file path when the validation succeeds.
> The validation for "content addressable" could even include validating the 
> checksum hash.



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[jira] [Updated] (FLINK-5908) Blob Cache can (rarely) get corrupted on failed blob downloads

2017-04-25 Thread Robert Metzger (JIRA)

 [ 
https://issues.apache.org/jira/browse/FLINK-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Robert Metzger updated FLINK-5908:
--
Fix Version/s: (was: 1.2.1)
   1.2.2

> Blob Cache can (rarely) get corrupted on failed blob downloads
> --
>
> Key: FLINK-5908
> URL: https://issues.apache.org/jira/browse/FLINK-5908
> Project: Flink
>  Issue Type: Bug
>  Components: Distributed Coordination
>Affects Versions: 1.2.0
>Reporter: Stephan Ewen
> Fix For: 1.3.0, 1.2.2
>
>
> The Blob Cache downloads files directly to the target file location.
> While it tries to clean up failed attempts, there is a change that this 
> cleanup does not complete.
> In that case, we have a corrupt file at the target location. The blob cache 
> then assumes that it already has the file cached already and future requests 
> do not attempt to re-download the file.
> The fix would be to download to a temp file name, validate the integrity, and 
> rename to the target file path when the validation succeeds.
> The validation for "content addressable" could even include validating the 
> checksum hash.



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