No it's there: domaincrawltable,,1270600690648 J-D
On Thu, Apr 8, 2010 at 10:38 AM, Ted Yu <yuzhih...@gmail.com> wrote: > What if there is no region information in NSRE ? > > 2010-04-08 10:26:38,385 ERROR [IPC Server handler 60 on 60020] > regionserver.HRegionServer(846): Failed openScanner > org.apache.hadoop.hbase.NotServingRegionException: > domaincrawltable,,1270600690648 > at > org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2307) > at > org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:1893) > at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:648) > at > org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915) > > > On Thu, Apr 8, 2010 at 9:39 AM, Jean-Daniel Cryans <jdcry...@apache.org>wrote: > >> On Wed, Apr 7, 2010 at 11:38 PM, Al Lias <al.l...@gmx.de> wrote: >> > Occationally my HTable clients get a response that no server is serving >> > a particular region... >> > Normally, the region is back a few seconds later (perhaps a split?). >> >> Or the region moved. >> >> > >> > Anyway, the client (Using HTablePool) seems to need a restart to forget >> > this. >> >> Seems wrong, would love a stack trace. >> >> > >> > Is there a config value to manipulate the caching time of regionserver >> > assignments in the client? >> >> Nope, when the client sees a NSRE, it queries .META. to find the new >> location. >> >> > >> > I set a small value for hbase.client.pause to get failures fast. I am >> > using 0.20.3 . >> >> Splits are still kinda slow, takes at least 2 seconds to happen, but >> finding the new location of a region is a core feature in HBase and >> it's rather well tested, Can you pin down your exact problem? Next >> time a NSRE happens, see which region it was looking for and grep the >> master log for it, you should see the history and how much time it >> took to move. >> >> > >> > Thx, >> > >> > Al >> > >> >
