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[ACCUMULO-4419] Create Compressor factory allowing Compression settings to be updated - Accumulo - [issue]
...This ticket is to account for work done elsewhere in which I've made the compression pool configurable such that we either don't use the pool at all or use an adjustable pool based on common...
http://issues.apache.org/jira/browse/ACCUMULO-4419    Author: marco polo , 2018-03-19, 18:35
[ACCUMULO-3509] Scanner lock cause Tablet lock, hence preventing idle scans from being swept, hence blocking SimpleTimer thread - Accumulo - [issue]
...Synchronization with Tablet$Scanner via a read() will block close() being called via the sweep method in TabletServer. As a result, the SimpleTimer thread does not continue, and idle threads...
http://issues.apache.org/jira/browse/ACCUMULO-3509    Author: marco polo , 2018-02-09, 20:33
[ACCUMULO-4009] Tablet MinC finalization errantly logs notification as an error - Accumulo - [issue]
...There is a message in Tablet, "Failed to free tablet memory." From what I can tell this will occur when an interrupt flag is set on an underlying source after everything has been completely ...
http://issues.apache.org/jira/browse/ACCUMULO-4009    Author: marco polo , 2016-08-24, 22:34
[ACCUMULO-3982] Add LRU mechanism to address memory concerns and possibly pre-fetch Tablet Locations. - Accumulo - [issue]
...On larger systems, especially those of which may split frequently, I've seen churn in the TabletLocator caches. Could we possibly pre-fetch entries for a table so that we don't constantly ac...
http://issues.apache.org/jira/browse/ACCUMULO-3982    Author: marco polo , 2016-08-24, 22:34
[ACCUMULO-4418] Create Compressor factory allowing Compression settings to be updated - Accumulo - [issue]
...This ticket is to account for work done elsewhere in which I've made the compression pool configurable such that we either don't use the pool at all or use an adjustable pool based on common...
http://issues.apache.org/jira/browse/ACCUMULO-4418    Author: marco polo , 2016-08-23, 14:08
[ACCUMULO-4388] ZooCache doesn't need to get zoosession until cache search is exhausted - Accumulo - [issue]
...We currently grab a Zookeeper session in ZooCache before we check the internal cache. I propose, and will submit a pull request to reflect, a change in the location to obtain this session. I...
http://issues.apache.org/jira/browse/ACCUMULO-4388    Author: marco polo , 2016-07-22, 19:46
[ACCUMULO-4153] Change getCodec method in BCFile's Compression class - Accumulo - [issue]
...Seeing major blockages blockages on the Synchronized method of getCodec.  My initial change was to change it to double checked locking; however, spoke with Keith Turner and I'm changing...
http://issues.apache.org/jira/browse/ACCUMULO-4153    Author: marco polo , 2016-07-14, 19:02
[ACCUMULO-3709] AccumuloOutputFormat close doesn't rethrow exception when mutations are rejected - Accumulo - [issue]
...If mutations are rejected during the close of the output formatter and subsequently the writer ( which causes a flush ), then the exception is not rethrown...only logged.I'm testing a change...
http://issues.apache.org/jira/browse/ACCUMULO-3709    Author: marco polo , 2016-06-03, 18:04
[ACCUMULO-4022] Create a concept of multi-homed tablets - Accumulo - [issue]
...I'm an accumulo newbie, but I wish to see the concept of multi-homed tablets. This allows us to have tablets hosted by multiple servers, with only one being writable against it. This concept...
http://issues.apache.org/jira/browse/ACCUMULO-4022    Author: marco polo , 2016-05-26, 13:23
[ACCUMULO-3508] Zoocache utilizes course grained locking causing unnecessary synchronization in many tserver ops - Accumulo - [issue]
...Through jstacking I have observed busy tablet server threads waiting for the Zoocache to be updated or even read. Profiling via yourkit indicates potential deadlocks when threads wait for a ...
http://issues.apache.org/jira/browse/ACCUMULO-3508    Author: marco polo , 2015-12-31, 01:45