cluster replication strategy question

2024-05-02 Thread Whitney Jackson
I have four HBase clusters (A, B, C, D) with replication between them. I've configured each cluster to replicate to all other clusters in an attempt to have a hot-hot, eventually-consistent-across-all-clusters setup. One nice property of this configuration is that any individual cluster can

scan backward / seek forward?

2021-08-17 Thread Whitney Jackson
Hi, I have a row key like this: : There are millions of records per id throughout the day. When querying for id=xyz, I want one row (either the first or the last depending) for every 5 minute time bucket in a specific time range. I can do this efficiently with a single scan and custom filter

Re: [DISCUSS] Normalizer and pre-split tables

2020-06-29 Thread Whitney Jackson
I was just facing the many-zero-sized-regions issue last week and pondering how best to approach it. So ++ for this work! > The trouble is we ship defaults for all of the `*min*` configs, and right now there's no way to "unset" them, disable the functionality. Why is that the case? Can I not

Re: hbase client deadlock?

2020-06-04 Thread Whitney Jackson
Sure: https://issues.apache.org/jira/browse/HBASE-24506 On Thu, Jun 4, 2020 at 6:29 PM 张铎(Duo Zhang) wrote: > Please open an issue? > > Whitney Jackson 于2020年6月5日周五 上午5:51写道: > > > I ran into an issue where one instance in a cluster of application > servers > &

hbase client deadlock?

2020-06-04 Thread Whitney Jackson
I ran into an issue where one instance in a cluster of application servers backed by HBase stopped processing requests. Looking at a thread dump, it seems HBase client threads are deadlocked: https://pastebin.com/raw/B3FJL1Ag The deadlock seemed to happen at the same time that a region server

Re: replication fix and hbase 1.4.13?

2020-01-27 Thread Whitney Jackson
cleared up. > > On Mon, Jan 27, 2020 at 11:19 AM Whitney Jackson > wrote: > > > > Thanks for the reply! Very helpful. > > > > > One more thing I'd ask is that you remember that we're all volunteers > > here. > > > > Absolutely. Appreciate the e

Re: replication fix and hbase 1.4.13?

2020-01-27 Thread Whitney Jackson
ose who can corral Jira issues, do > testing, and stage release candidates are very welcome and desired to > help make our releases happen on a regular cadence. If you have the > time/resources to help our, let us know on the dev list. > > - Josh > > On 1/27/20 11:04 AM, Whitney Ja

replication fix and hbase 1.4.13?

2020-01-27 Thread Whitney Jackson
Hi, I've been running 1.4.12 with replication and experiencing the "random region server aborts" as described here: https://issues.apache.org/jira/browse/HBASE-23169 The underlying problem and fix (woohoo!) seems to be here: https://issues.apache.org/jira/browse/HBASE-23205 I do see there is