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sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/service/thrift/HMSFollower.java Lines 328 (patched) <https://reviews.apache.org/r/59274/#comment248467> I was asking about a scenario when you ask for the current notification id from HMS, and afterwords asked for specific notifications and their value is smaller. This seems to be a weird scenario. - Alexander Kolbasov On May 15, 2017, 2:58 p.m., Sergio Pena wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/59274/ > ----------------------------------------------------------- > > (Updated May 15, 2017, 2:58 p.m.) > > > Review request for sentry, Alexander Kolbasov, kalyan kumar kalvagadda, and > Na Li. > > > Bugs: SENTRY-1760 > https://issues.apache.org/jira/browse/SENTRY-1760 > > > Repository: sentry > > > Description > ------- > > The patch will set the 'needHiveSnapshot' to TRUE whenever the following > cases are found: > > - List of notifications received are different than expected. > This may happen when Sentry has been down or HDFS sync was disabled for a > while (more than 24h), > and the HMS cleared old notifications (older than 24h) not processed by > Sentry causing a gap when retrieving notifications. > > - Latest Sentry notification ID processed is bigger than current HMS > notification ID. > This may happen when the HMS DB data was reset or restore from an old > snapshot causing sync issues with Sentry. > > When needHiveSnapshot is set to TRUE, then the HMSFollower will CLEAR any > hive snapshot stored on the Sentry store, and recreate a > new hive snapshot from scratch to keep Sentry in sync. > > > Diffs > ----- > > > sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/persistent/SentryStore.java > ef6786537e9c5f7730bc86d44e8b4a168c20677e > > sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/service/thrift/HMSFollower.java > 5e6b906587f6422d9bf1466ab83815722bd51fb0 > > > Diff: https://reviews.apache.org/r/59274/diff/1/ > > > Testing > ------- > > HadoopQA is GREEN. > > > Thanks, > > Sergio Pena > >
