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rf_tmp file [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALWhat purpose does the nnnn.rf_tmp file on hdfs serve?  Its often 0kb size and there appear to be a lot of these older than the table ageoff filter.Can we safely remove these?T...
   Author: Dickson, Matt MR, 2014-08-07, 04:35
loaded family in MEATADATA table [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALInvestigating the metadata table I have noticed a family of 'loaded' and looking at all the doco, including the new OReilly Accumulo book, there is no description of it.The column ...
   Author: Dickson, Matt MR, 2014-07-31, 04:06
[expand - 1 more] - Meaning of < in METADATA table [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALWhen looking up rfile references in the metadata table we normally see ; for the rowid.   I've noticed some rowids are <     eg.    3p<Is this becaus...
   Author: Dickson, Matt MR, 2014-06-25, 01:58
Test Drive VM [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALIs there a date when the VirtualBox test drive VM will be available from the Sqrrl website?  This would be extremely useful for our developers to quickly get an isolated Accum...
   Author: Dickson, Matt MR, 2014-06-23, 23:46
[expand - 1 more] - Droptable hanging [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALWhen dropping a table the shell hangs with "thread 'shell' stuck on IO to ipaddress (0) for at least ...msIs there a way to drop the table other than via the shell?  eg can th...
   Author: Dickson, Matt MR, 2014-06-01, 21:56
[expand - 1 more] - Table locked due to minc's [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALI'm trying to drop a table and the drop seems to be hanging due to 4 minc's running.  The minor compactions have now been running for 6 hours and the table is in 'DELETING' st...
   Author: Dickson, Matt MR, 2014-05-30, 03:48
[expand - 1 more] - 200k fate locks in zookeeper [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALI'm seeing an issue caused by there being almost 200k fate locks in zookeeper.  The problem is that zookeeper is configured to return no more than 1mb of data for each query. ...
   Author: Dickson, Matt MR, 2014-05-26, 23:49
[expand - 1 more] - RFiles not referenced in !METADATA [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALI've run scan on hdfs under /accumulo/tables/ for all rfiles older than our ageoff filter on that table.  When I then scan for these rfiles in the metadata table most are not ...
   Author: Dickson, Matt MR, 2014-05-22, 01:11
[expand - 1 more] - How to speed up table compaction [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALI'm trying to compact a table and have had a queue of 60,000 compactions with only 800 running at a time.  This has now been running for 4 days and only decreased the queue by...
   Author: Dickson, Matt MR, 2014-05-05, 22:43
[expand - 1 more] - Identify tablets with no new data loaded [SEC=UNOFFICIAL] - Accumulo - [mail # user]
...UNOFFICIALHi,Is there a way to identify tablets that have had no data loaded into them for a period of time, eg 7 days?  My guess is that it this information is in the metadata table bu...
   Author: Dickson, Matt MR, 2014-04-29, 23:35
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB