Yes. I agree with you. But I can not upgrade right away. The problem is that region servers that have received a particular region continue to die. I got the name of that region. What would I do to find out if a region server dies when it receives a region? Thanks. ________________________________ 보낸 사람: Ted Yu 보낸 날짜: 2017년 2월 7일 화요일 오전 11:38:23 받는 사람: user@hbase.apache.org 제목: Re: Region server dies at regular intervals for unknown reasons. 0.96 was so old. Please consider upgrading. You can do rolling upgrade to 0.98 / 1.x releases (e.g. 1.1.8 or 1.3.0). On Mon, Feb 6, 2017 at 6:04 PM, Kang Minwoo wrote: > The version I use is very low. > > hbase: 0.96.2 > hadoop: 2.4.1 > > I did not run hbck. > > Thanks > ________________________________ > 보낸 사람: Ted Yu > 보낸 날짜: 2017년 2월 7일 화요일 오전 10:40:28 > 받는 사람: user@hbase.apache.org > 제목: Re: Region server dies at regular intervals for unknown reasons. > > Kang: > Please let us know the release of hbase and hadoop you use. > > Did you run hbck around the time region server crashed ? > > If there was inconsistency, please pastebin as well. > > Thanks > > On Mon, Feb 6, 2017 at 5:36 PM, Ganesh Viswanathan > wrote: > > > Check the GC logs for HBase and HDFS. Tail and post HBase logs from > > regionserver and from active HBase master to help debug the root cause. > > > > > > > > On Mon, Feb 6, 2017 at 5:27 PM Kang Minwoo > > wrote: > > > > > Hello, > > > > > > > > > My region servers die at regular intervals for unknown reasons. > > > I restarted HBase and region servers continued to die. > > > > > > I solved it by eliminating Old WAL. > > > > > > Now I'm going through the logs and trying to find the cause. > > > But I do not know where to look. > > > > > > Please let me know if I need to watch carefully to find out why the > > Region > > > server is dying. > > > I think it will be very helpful. > > > > > > Not all region servers were killed, and only some region servers died. > > > > > > Thanks. > > > > > >