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From ameet kini <>
Subject Re: Table splitting
Date Wed, 12 Dec 2012 18:08:51 GMT
Along these lines....

Can someone help me understand how tablets map to files on disk in HDFS?
>From what I understand, after a compaction, there may be one (or more?)
files on HDFS for a given tablet. Each file can consist of multiple HDFS
blocks. Does Accumulo guarantee that the tablet serving a given data range
finds all its blocks locally? If so, how does it keep this guarantee?
Wouldn't HDFS distribute these blocks around based on HDFS balancing


On Tue, Dec 11, 2012 at 9:37 AM, William Slacum <> wrote:

> Tablets will split automatically, down to the granularity of a row.
> On Tue, Dec 11, 2012 at 9:32 AM, Mathias Herberts <
>> wrote:
>> Hi,
>> I've read the user manual for v1.4.2 and I have not seen any mention of
>> automatic tablet splitting. Is there such a thing in Accumulo or is
>> pre-splitting the only way to split a table?
>> Thanks,
>> Mathias.

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