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From Ted Yu <yuzhih...@gmail.com>
Subject Re: HRegionInfo was null or empty in Meta
Date Wed, 07 May 2014 20:11:49 GMT
The warning came from:

      try {
        // pre-fetch certain number of regions info at region cache.
        MetaScanner.metaScan(conf, this, visitor, tableName, row,
            this.prefetchRegionLimit, HConstants.META_TABLE_NAME);
      } catch (IOException e) {
        LOG.warn("Encountered problems when prefetch META table: ", e);
      }

Can you scan / write to vc2.out_link ?

Cheers


On Tue, May 6, 2014 at 6:07 PM, Li Li <fancyerii@gmail.com> wrote:

> hbase hbck vc2.out_link
>
> Summary:
>   -ROOT- is okay.
>     Number of regions: 1
>     Deployed on:  app-hbase-1,60020,1398226921318
>   .META. is okay.
>     Number of regions: 1
>     Deployed on:  app-hbase-4,60020,1398226920856
>   vc2.out_link is okay.
>     Number of regions: 9
>     Deployed on:  app-hbase-1,60020,1398226921318
> app-hbase-2,60020,1398226921328 app-hbase-4,60020,1398226920856
> app-hbase-5,60020,1398226920317
> 0 inconsistencies detected.
> Status: OK
>
> On Tue, May 6, 2014 at 9:40 PM, Ted Yu <yuzhihong@gmail.com> wrote:
> > Have you run hbck on vc2.out_link ?
> >
> > Cheers
> >
> > On May 6, 2014, at 6:33 AM, Li Li <fancyerii@gmail.com> wrote:
> >
> >> I am using 0.94.11
> >>
> >>
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation
> >> Encountered problems when prefetch META table:
> >> java.io.IOException: HRegionInfo was null or empty in Meta for
> >> vc2.out_link, row=vc2.out_link,,99999999999999
> >>        at
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:157)
> >>        at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache(HConnectionManager.java:1062)
> >>        at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:1124)
> >>        at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:1004)
> >>        at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:961)
> >>        at
> org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:227)
> >>        at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:219)
> >>        at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getTable(HConnectionManager.java:671)
> >>        at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getTable(HConnectionManager.java:658)
> >>        at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getTable(HConnectionManager.java:653)
>

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