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[HBASE-11360] SnapshotFileCache causes too many cache refreshes - HBase - [issue]
...Right now we decide whether to refresh the cache based on the lastModified timestamp of all the snapshots and those "running" snapshots which is located in the /hbase/.hbase-snapshot/.tmp/&l...
http://issues.apache.org/jira/browse/HBASE-11360    Author: churro morales, 2014-08-09, 05:40
[HBASE-9472] If the memstore size is under .1 or greater than .9 the memstore size defaults to the default memstore size - HBase - [issue]
...In HbaseConfiguration.checkForClusterFreeMemoryLimit it does a check to see if the blockCache + memstore > .8 this threshold ensures we do not run out of memory.But MemStoreFlusher.getMem...
http://issues.apache.org/jira/browse/HBASE-9472    Author: churro morales, 2014-08-08, 19:46
[HBASE-11601] Parallelize Snapshot operations for 0.94 - HBase - [issue]
...Although HBASE-11185 exists, it is geared towards the snapshot manifest code.  We have used snapshots to ship our two largest tables across the country and while doing so found a few po...
http://issues.apache.org/jira/browse/HBASE-11601    Author: churro morales, 2014-07-28, 22:50
[HBASE-11322] SnapshotHFileCleaner makes the wrong check for lastModified time thus causing too many cache refreshes - HBase - [issue]
...The SnapshotHFileCleaner calls the SnapshotFileCache if a particular HFile in question is part of a snapshot.If the HFile is not in the cache, we then refresh the cache and check again.But t...
http://issues.apache.org/jira/browse/HBASE-11322    Author: churro morales, 2014-07-28, 18:40
[HBASE-11409] Add more flexibility for input directory structure to LoadIncrementalHFiles - HBase - [issue]
...Use case:We were trying to combine two very large tables into a single table.  Thus we ran jobs in one datacenter that populated certain column families and another datacenter which pop...
http://issues.apache.org/jira/browse/HBASE-11409    Author: churro morales, 2014-07-25, 00:36
[HBASE-11528] The restoreSnapshot operation should delete the rollback snapshot upon a successful restore - HBase - [issue]
...We take a snapshot: "rollbackSnapshot" prior to doing a restore such that if the restore fails we can revert the table back to its pre-restore state.  If we are successful in restoring ...
http://issues.apache.org/jira/browse/HBASE-11528    Author: churro morales, 2014-07-17, 06:32
[HBASE-11352] When HMaster starts up it deletes the tmp snapshot directory, if you are exporting a snapshot at that time the job will fail - HBase - [issue]
...We are exporting a very large table.  The export snapshot job takes 7+ days to complete.  During that time we had to bounce HMaster.  When HMaster initializes, it initializes ...
http://issues.apache.org/jira/browse/HBASE-11352    Author: churro morales, 2014-06-24, 22:42
[HBASE-11195] Potentially improve block locality during major compaction for old regions - HBase - [issue]
...This might be a specific use case.  But we have some regions which are no longer written to (due to the key).  Those regions have 1 store file and they are very old, they haven't b...
http://issues.apache.org/jira/browse/HBASE-11195    Author: churro morales, 2014-05-23, 01:31
[HBASE-10528] DefaultBalancer selects plans to move regions onto draining nodes - HBase - [issue]
...We have quite a large cluster > 100k regions, and we needed to isolate a region was very hot until we could push a patch.  We put this region on its own regionserver and set it in th...
http://issues.apache.org/jira/browse/HBASE-10528    Author: churro morales, 2014-02-14, 18:26
[HBASE-10100] Hbase replication cluster can have varying peers under certain conditions - HBase - [issue]
...We were trying to replicate hbase data over to a new datacenter recently.  After we turned on replication and then did our copy tables.  We noticed that verify replication had disc...
http://issues.apache.org/jira/browse/HBASE-10100    Author: churro morales, 2014-01-23, 21:46
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