hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ted Yu <yuzhih...@gmail.com>
Subject reassignment of .META. region
Date Thu, 30 Dec 2010 19:24:13 GMT
In 0.20.6, we observed the following when RS hosting .META. was down:

10-12-30 09:44:32,441 INFO org.apache.zookeeper.ClientCnxn: Priming
connection to java.nio.channels.SocketChannel[connected local=/
10.202.50.107:15007 remote=
us01-ciqps1-name01.carrieriq.com/10.202.50.100:2181]
2010-12-30 09:44:32,446 INFO org.apache.zookeeper.ClientCnxn: Server
connection successful
2010-12-30 09:44:32,606 INFO
org.apache.hadoop.hbase.client.HConnectionManager$TableServers:
locateRegionInMeta attempt 0 of 10 failed; retrying after sleep of 8000
because: Call to us01-ciqps1-grid01.carrieriq.com/10.202.50.101:60020 failed
on local exception: java.io.IOException: Connection reset by peer
2010-12-30 09:44:40,616 INFO org.apache.hadoop.ipc.HbaseRPC: Server at
us01-ciqps1-grid01.carrieriq.com/10.202.50.101:60020 could not be reached
after 1 tries, giving up.
...
2010-12-30 09:47:36,676 INFO
org.apache.hadoop.hbase.client.HConnectionManager$TableServers:
locateRegionInMeta attempt 8 of 10 failed; retrying after sleep of 128000
because: Failed setting up proxy to
us01-ciqps1-grid01.carrieriq.com/10.202.50.101:60020 after attempts=1
2010-12-30 09:49:44,712 INFO org.apache.hadoop.ipc.HbaseRPC: Server at
us01-ciqps1-grid01.carrieriq.com/10.202.50.101:60020 could not be reached
after 1 tries, giving up.

Can someone enlighten me how 0.90 improves upon reassignment of .META.
region in case RS hosting .META. is down ?

I am expecting significant speedup compared to that from 0.20.6

Thanks

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message