| clear query|facets|time |
Search criteria: .
Results from 31 to 40 from
95 (0.244s).
|
|
|
Loading phrases to help you
refine your search...
|
|
Re: HBase Thrift inserts bottlenecked somewhere -- but where? - HBase - [mail # user]
|
|
...Make sure you are not sending a lot of put of the same rowkey. This can cause contention in the region server side. We fixed that in our project by aggregating all the columns for the same r...
|
|
|
Author: Asaf Mesika,
2013-03-02, 19:56
|
|
|
Re: Map Reduce with multiple scans - HBase - [mail # user]
|
|
...Nick, if he didn't specify startKey, endKey in the Scan Object, and delegate it to a Filter, this means he will send this scan to *all* regions in the system, instead of just one or two, no?...
|
|
|
Author: Asaf Mesika,
2013-03-01, 14:17
|
|
|
Re: HBase Thrift inserts bottlenecked somewhere -- but where? - HBase - [mail # user]
|
|
...Maybe you've the limit of the number of RPC Threads handling your write requests per Region Server, thus your requests are queued? On Fri, Mar 1, 2013 at 2:17 PM, Dan Crosta wro...
|
|
|
Author: Asaf Mesika,
2013-03-01, 14:13
|
|
|
Re: Row Key Design in time based aplication - HBase - [mail # user]
|
|
...How does avoid memory hogging the region server when multiple queries with group by are executed, which is done in Hbase jvm. I know that Hbase does not handle well when heap space is set be...
|
|
|
Author: Asaf Mesika,
2013-02-21, 22:49
|
|
|
Re: Rowkey design question - HBase - [mail # user]
|
|
...An easier way is to place one byte before the time stamp which is called a bucket. You can calculate it by using modulu on the time stamp by the number of buckets. We are now in the process ...
|
|
|
Author: Asaf Mesika,
2013-02-21, 22:15
|
|
|
Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
|
|
...1. Try batching your increment calls to a List and use batch() to execute it. Should reduce RPC calls by 2 magnitudes. 2. Combine batching with scanning more words, thus aggregating your cou...
|
|
|
Author: Asaf Mesika,
2013-02-19, 21:53
|
|
|
Re: increment counters via bulk upload in HBase - HBase - [mail # user]
|
|
...We solved this partially by converting increment to put and aggregating in preCompact. I guess that if you bulk upload an HFile which has this puts which are a representation of a delta to a...
|
|
|
Author: Asaf Mesika,
2013-02-18, 22:18
|
|
|
Re: Using HBase for Deduping - HBase - [mail # user]
|
|
...You can load the events into an Hbase table, which has the event id as the unique row key. You can define max versions of 1 to the column family thus letting Hbase get rid of the duplicates ...
|
|
|
Author: Asaf Mesika,
2013-02-14, 22:26
|
|
|
Re: column count guidelines - HBase - [mail # user]
|
|
...Can you elaborate more on that features? I thought 4 was just for bug fixes. Sent from my iPhone On 8 בפבר 2013, at 02:34, Ted Yu wrote: How many column families are ...
|
|
|
Author: Asaf Mesika,
2013-02-08, 16:25
|
|
|
Re: Pagination with HBase - getting previous page of data - HBase - [mail # user]
|
|
...Here are my thoughts on this matter: 1. If you define setCaching(numOfRows) on the the scan object, you can check before each call to make sure you haven't passed your page limit, thus...
|
|
|
Author: Asaf Mesika,
2013-02-03, 14:07
|
|
|
|
