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From Li Li <fancye...@gmail.com>
Subject Re: HRegionInfo was null or empty in Meta
Date Tue, 13 May 2014 01:31:40 GMT
yes, it only ocurrs occasionally. it's now ok

On Thu, May 8, 2014 at 4:11 AM, Ted Yu <yuzhihong@gmail.com> wrote:
> 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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