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Anoop Sam John
Stephen Yuan Jiang
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[HBASE-13109] Make better SEEK vs SKIP decisions during scanning
...I'm re-purposing this issue to add a heuristic as to when to SEEK and when to SKIP Cells. This has come up in various issues, and I think I have a way to finally fix this now. HBASE-9778, HB...
, 2015-03-26, 01:22
[HBASE-12976] Set default value for hbase.client.scanner.max.result.size
...Setting scanner caching is somewhat of a black art. It's hard to estimate ahead of time how large the result set will be.I propose we hbase.client.scanner.max.result.size to 2mb. That is goo...
, 2015-03-20, 05:14
[HBASE-13292] Undo parent from 0.98 and 1.0: setting hbase.client.scanner.max.result.size is considered harmful
...Defaulting hbase.client.scanner.max.result.size to 2mb will have to be undone from all branches....
, 2015-03-19, 22:08
[HBASE-13276] Fix incorrect condition for minimum block locality in 0.98
...0.98 only. Parent somehow was incorrect. One-liner to fix it.But it's critical as we perform potentially way more compactions now....
, 2015-03-19, 02:16
[HBASE-9117] Remove HTablePool and all HConnection pooling related APIs
...The recommended way is now: Create an HConnection: HConnectionManager.createConnection(...) Create a light HTable: HConnection.getTable(...) table.close() connection.close()All other API and...
, 2015-03-16, 20:28
[HBASE-9778] Add hint to ExplicitColumnTracker to avoid seeking
...The issue of slow seeking in ExplicitColumnTracker was brought up by Vladimir Rodionov on the dev list.My idea here is to avoid the seeking if we know that there aren't many versions to skip...
, 2015-03-04, 22:25
[HBASE-13094] Consider Filters that are evaluated before deletes and see delete markers
...That would be good for full control filtering of all cells, such as needed for some transaction implementations.Gary Helmling...
, 2015-02-25, 00:40
[HBASE-13046] Review replication timeouts
...See discussion on HBASE-12971.We should review all the config options we have for replication timeouts and make sure the defaults make sense....
, 2015-02-14, 06:20
[HBASE-11935] ZooKeeper connection storm after queue failover with slave cluster down
...We just ran into a production incident with TCP SYN storms on port 2181 (zookeeper).In our case the slave cluster was not running. When we bounced the primary cluster we saw an "unbounded" n...
, 2015-02-13, 01:59
[HBASE-4583] Integrate RWCC with Append and Increment operations
...Currently Increment and Append operations do not work with RWCC and hence a client could see the results of multiple such operation mixed in the same Get/Scan.The semantics might be a bit mo...
, 2015-01-27, 18:52
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