Hieu, You're welcome to file a JIRA and submit a fix for the CDH branches (4.14-cdh5.11, 4.x-cdh5.15, etc). I think while 4.x-HBase-1.2 is EOL, the CDH branches are not. CDH 5.x is based on HBase-1.2, but it also contains a concoction of 1.2.x, 1.3, 1.4 patches back-ported by Cloudera. (Thomas, feel free to correct me if I misunderstood... but when we EOL'd HBase-1.2, I was under the impression that the CDH branches will live on).
On Tue, May 21, 2019 at 9:24 PM Thomas D'Silva <tdsi...@salesforce.com> wrote: > Your approach seems like the correct thing to do. HBase has stopped > supporting the 1.2 branch, so we also EOL'ed it, there will not be any more > releases targeting HBase 1.2. I would suggest that you upgrade to a later > version. > > On Tue, Apr 30, 2019 at 8:55 PM Hieu Nguyen <h...@box.com> wrote: > >> Hi, >> >> We are on Phoenix 4.14-cdh5.11. We are experiencing an issue where local >> index data is not being replicated through HBase replication. As suggested >> in a previous email thread ( >> https://lists.apache.org/thread.html/984fba3c8abd944846deefb3ea285195e0436b9181b9779feac39b59@%3Cuser.phoenix.apache.org%3E), >> we have enabled replication for the local indexes (the "L#0" column family >> on the same table). We wrote an integration test to demonstrate this issue >> on top of 4.14-cdh5.11 branch ( >> https://github.com/hnguyen08/phoenix/commit/3589cb45d941c6909fb3deb5f5abb0f8dfa78dd7 >> ). >> >> After some investigation and debugging, we discovered the following: >> 1. Commit a2f4d7eebec621b58204a9eb78d552f18dcbcf24 (PHOENIX-3827) fixed >> the issue, but only in Phoenix for HBase1.3+. It uses the >> miniBatchOp.addOperationsFromCP() API introduced in HBase1.3. >> Unfortunately, for the time being, we are stuck on cdh5.11 (based on >> HBase1.2). >> 2. IndexUtil.writeLocalUpdates() is called in both implementations of >> IndexCommitter, both taking skipWAL=true. It seems like we'd actually want >> to not skip WAL to ensure that local-index updates are replicated correctly >> (since, as mentioned in the above email thread, "HBase-level replication of >> the data table will not trigger index updates"). After changing the >> skipWAL flag to false, the above integration test passes. >> >> Would it make sense to fix local-index replication for Phoenix versions >> on <= HBase1.2 by setting skipWAL to false for writeLocalUpdates? As far >> as I can tell, it is not a perfect solution compared to using >> addOperationsFromCP() because the local index update still wouldn't be >> atomic. But at least local-index updates can be replicated. Let me know >> if I'm missing something. Happy to file a JIRA or submit a fix. >> >> Thanks, >> -Hieu >> >>
