Hi Laxmi,
It didnt come me. I understand, your RegionServer is gone away. Because
of this problem is your Hbase heap size or xceivers count is not enough.
I had same issue. I set up my xceivers count. I am not sure what it will
be count.But you should check your heaps size usage. If it is enough you
can set up your property. This article[1] very good about this property.
[1] http://blog.cloudera.com/blog/2012/03/hbase-hadoop-xceivers/
Talat
17-10-2013 22:20 tarihinde, A Laxmi yazd?:
Hi Talat,
I hope all is well. Could you please advise me on this issue?
Thanks for your help!
---------- Forwarded message ----------
From: *A Laxmi* <[email protected] <mailto:[email protected]>>
Date: Tue, Oct 15, 2013 at 12:07 PM
Subject: HBase Pseudo mode - RegionServer disconnects after some time
To: [email protected] <mailto:[email protected]>
Hi -
Please find the below log of HBase-master. I have tried all sorts of
fixes mentioned in various threads yet I could not overcome this
issue. I made sure I dont have 127.0.1.1 in /etc/hosts file. I pinged
my localhost (hostname) which gives back the actual IP and not
127.0.0.1 using ping -c 1 localhost. I have 'localhost' in my
/etc/hostname and actual IP address mapped to localhost.localdomain
and localhost as alias - something like
/etc/hosts -
192.***.*.*** localhost.localdomain localhost
/etc/hostname -
localhost
I am using *Hadoop 0.20.205.0 and HBase 0.90.6 in Pseudo mode* for
storing crawled data from a crawler - Apache Nutch 2.2.1. I can start
Hadoop and HBase and when I do jps it shows all good, then after that
when I start Nutch crawl after about 40mins of crawling or so, I can
see Nutch hanging up while in about 4th iteration of parsing and at
the same time when I do jps in HBase, I can see everything except
HRegionServer. Below is the log.
I tried all possible ways but couldn't overcome this issue. I really
need someone from HBase list to help me with this issue.
2013-10-15 02:02:08,285 DEBUG
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: Pushed=56
entries from hdfs://localhost:8020/hbase/.logs/127.0.0.1
<http://127.0.0.1>,60020,1381814216471/127.0.0.1
<http://127.0.0.1>%3A60020.1381816329235
2013-10-15 02:02:08,285 DEBUG
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: Splitting hlog
28 of 29: hdfs://localhost:8020/hbase/.logs/127.0.0.1
<http://127.0.0.1>,60020,1381814216471/127.0.0.1
<http://127.0.0.1>%3A60020.1381816367672, length=64818440
2013-10-15 02:02:08,285 WARN org.apache.hadoop.hbase.util.FSUtils:
Running on HDFS without append enabled may result in data loss
2013-10-15 02:02:08,554 DEBUG org.apache.*hadoop.hbase.master.HMaster:
Not running balancer because processing dead regionserver(s):
[127.0.0.1,60020*,1381814216471]
2013-10-15 02:02:08,556 INFO
org.apache.hadoop.hbase.catalo*g.CatalogTracker: Failed verification
of .META.,,1 at address=127.0.0.1:60020 <http://127.0.0.1:60020>;
java.net.ConnectException: Connection refused*
2013-10-15 02:02:08,559 INFO
org.apache.hadoop.hbase.catalog.*CatalogTracker: Current cached META
location is not valid*, resetting
2013-10-15 02:02:08,601 WARN
org.apache.hadoop.*hbase.master.CatalogJanitor: Failed scan of catalog
table
org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException: Timed out
(2147483647ms)*
at
org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMeta(CatalogTracker.java:390)
at
org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMetaServerConnectionDefault(CatalogTracker.java:422)
at
org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:255)
at
org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:237)
at
org.apache.hadoop.hbase.master.CatalogJanitor.scan(CatalogJanitor.java:120)
at
org.apache.hadoop.hbase.master.CatalogJanitor.chore(CatalogJanitor.java:88)
at org.apache.hadoop.hbase.Chore.run(Chore.java:66)
2013-10-15 02:02:08,842 INFO
org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter: syncFs
-- HDFS-200 -- not available, dfs.support.append=false
2013-10-15 02:02:08,842 DEBUG
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: Creating writer
path=hdfs://localhost:8020/hbase/1_webpage/853ef78be7c0853208e865a9ff13d5fb/recovered.edits/0000000000000001556.temp
region=853ef78be7c0853208e865a9ff13d5fb
2013-10-15 02:02:09,443 DEBUG
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: Pushed=39
entries from hdfs://localhost:8020/hbase/.logs/127.0.0.1
<http://127.0.0.1>,60020,1381814216471/127.0.0.1
<http://127.0.0.1>%3A60020.1381816367672
2013-10-15 02:02:09,444 DEBUG
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: Splitting hlog
29 of 29: hdfs://localhost:8020/hbase/.logs/127.0.0.1
<http://127.0.0.1>,60020,1381814216471/127.0.0.1
<http://127.0.0.1>%3A60020.1381816657239, length=0
Thanks for your help!
