CODEWITHSUNDEEP
hbase
Dolan Antenucci
Dolan Antenucci

Reputation: 15942

Hbase NotServingRegionException: Region is not online

One of my Hbase regionservers went offline because of HDFS going into Safe Mode -- or couldn't come back online because of Safe Mode (chicken-egg issue) -- so I fixed this and got the region server working again, but then I could no longer query Hbase. I received an error, NotServingRegionException: Region is not online: <my table>...

Another SO Post and similar blog post suggested deleting some entries from Zookeeper, but this sounded like a potentially dangerous route to go, especially since our error messages didn't match.

What is a safe solution to this issue?

Upvotes: 0

Views: 10899

Answers (2)

escargot agile
escargot agile

Reputation: 22379

On Azure HBase I needed to run the following:

hbase master stop
hbase master start

Upvotes: 2

Dolan Antenucci
Dolan Antenucci

Reputation: 15942

The solution that worked for me was to simply restart Hbase Master.

(On Ubuntu w CDH4): sudo service hbase-master restart

Upvotes: 1

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