> On July 27, 2017, 9:52 p.m., Alexander Kolbasov wrote:
> > sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/generic/service/persistent/DelegateSentryStore.java
> > Line 68 (original), 69 (patched)
> > <https://reviews.apache.org/r/61047/diff/3/?file=1784509#file1784509line69>
> >
> >     This file deals with Generic permissions model which is never subject 
> > to HDFS sync.
> 
> Na Li wrote:
>     Initially, I have SentryStore(Configuration conf), and caller does not 
> need to care about HDFS sync. SentryStore finds out through configuration. 
> You did not want SentryStore to figure it out. So I changed the constructor 
> to take it as input.
>     
>     Now, you don't want caller to provide the value. What should I do?
>     
>     Do you mean I should provide two constructors for SentryStore, 
> SentryStore(Configuration conf) (SentryStore finds out the value from 
> configuration) and SentryStore(Configuration conf, boolean saveDeltaChange)? 
>     
>     Can you be more specific about what you want? Otherwise, it will take too 
> long to close this issue.

Option 1) Have two constructors for SentryStore. One constructor just accepts 
conf and always disables saving permission deltas. Another constructor has a 
parameter that tells whether it should be enabled or not. This cnstructor 
should be only used for Policy (Hive) permissions.

Option 2) Do not change constructor, but add a setter in SentryStore which sets 
the boolean value asking it to persist permission deltas. This setter should 
only be called by policy store engine. This is probably best.


> On July 27, 2017, 9:52 p.m., Alexander Kolbasov wrote:
> > sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/persistent/SentryStore.java
> > Lines 171 (patched)
> > <https://reviews.apache.org/r/61047/diff/3/?file=1784510#file1784510line171>
> >
> >     This is a very confusing name What is saveDeltaBlockEnabled? It should 
> > be at least documented, but a better name would be good.
> 
> Na Li wrote:
>     What is the name you prefer?

How about 'persistUpdateDeltas' ?


- Alexander


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On July 27, 2017, 3:57 p.m., Na Li wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/61047/
> -----------------------------------------------------------
> 
> (Updated July 27, 2017, 3:57 p.m.)
> 
> 
> Review request for sentry, Alexander Kolbasov, kalyan kumar kalvagadda, 
> Sergio Pena, and Vamsee Yarlagadda.
> 
> 
> Repository: sentry
> 
> 
> Description
> -------
> 
> Currently, Sentry does not start HMSFollower when HDFS sync is disabled. This 
> breaks PERM sync. For example, when a table/database is dropped, its 
> permission should be removed when perm sync is enabled. Without HMSFollower, 
> Sentry does not know when table/database is dropped, and therefore, cannot 
> remove the permission accordingly.
> Sentry needs to make updates to have the follow behavior
> 1) When HDFS sync is disabled + PERM sync is disabled, do not start 
> HMSFollower
> 2) when HDFS sync is enabled or PERM sync is enabled, start HMSFollower 
> (Sentry change).
> 3) when HDFS sync is enabled, we save path change and perm change. nothing 
> more. 
> 4) when perm sync is enabled, we update perm when table/database is created, 
> dropped or altered, nothing more.
> 
> 
> Diffs
> -----
> 
>   
> sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/generic/service/persistent/DelegateSentryStore.java
>  4cb46ab 
>   
> sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/persistent/SentryStore.java
>  670bc5e 
>   
> sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/thrift/SentryAdminServlet.java
>  8a8bbd3 
>   
> sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/service/thrift/SentryService.java
>  10d55dc 
>   
> sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/service/thrift/SentryServiceUtil.java
>  5826766 
>   
> sentry-provider/sentry-provider-db/src/test/java/org/apache/sentry/provider/db/service/persistent/TestHMSFollowerSentryStoreIntegration.java
>  82f600b 
>   
> sentry-provider/sentry-provider-db/src/test/java/org/apache/sentry/provider/db/service/persistent/TestSentryStore.java
>  a8ebf7c 
>   
> sentry-provider/sentry-provider-db/src/test/java/org/apache/sentry/provider/db/service/persistent/TestSentryStoreImportExport.java
>  1c3a4f2 
>   
> sentry-provider/sentry-provider-db/src/test/java/org/apache/sentry/provider/db/service/persistent/TestSentryVersion.java
>  a8e8a03 
> 
> 
> Diff: https://reviews.apache.org/r/61047/diff/3/
> 
> 
> Testing
> -------
> 
> unit tests
> 
> 
> Thanks,
> 
> Na Li
> 
>

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