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[HBASE-22114] Port HBASE-15560 (TinyLFU-based BlockCache) to branch-1 - HBase - [issue]
...HBASE-15560 introduces the TinyLFU cache policy for the blockcache.W-TinyLFU (research paper) records the frequency in a counting sketch, ages periodically by halving the counters, and order...    Author: Andrew Purtell , 2019-08-23, 22:26
[HBASE-22866] Multiple slf4j-log4j provider versions included in binary package (branch-1) - HBase - [issue]
...Examining binary assembly results there are multiple versions of slf4j-log4j in lib/slf4j-api-1.7.7.jarslf4j-log4j12-1.6.1.jarslf4j-log4j12-1.7.10.jarslf4j-log4j12-1.7.7.jarWe aren't managin...    Author: Andrew Purtell , 2019-08-23, 19:40
[HBASE-22460] Reopen a region if store reader references may have leaked - HBase - [issue]
...We can leak store reader references if a coprocessor or core function somehow opens a scanner, or wraps one, and then does not take care to call close on the scanner or the wrapped instance....    Author: Andrew Purtell , 2019-08-23, 18:12
[HBASE-22648] Snapshot TTL - HBase - [issue]
...Snapshots have a lifecycle that is independent from the table from which they are created. Although data in a table may be stored with TTL the data files containing them become frozen by the...    Author: Andrew Purtell , 2019-08-23, 14:54
[HBASE-11062] hbtop - HBase - [issue]
...A top-like monitor could be useful for testing, debugging, operations of clusters of moderate size, and possibly for diagnosing issues in large clusters.Consider a curses interface like the ...    Author: Andrew Purtell , 2019-08-23, 03:09
[HBASE-22301] Consider rolling the WAL if the HDFS write pipeline is slow - HBase - [issue]
...Consider the case when a subset of the HDFS fleet is unhealthy but suffering a gray failure not an outright outage. HDFS operations, notably syncs, are abnormally slow on pipelines which inc...    Author: Andrew Purtell , 2019-08-22, 23:36
[HBASE-22900] Multiple httpcore and httpclient versions included in binary package (branch-1.3) - HBase - [issue]
...We are including multiple versions of httpcore and httpclient in the binary package. httpclient-4.1.2.jarhttpclient-4.2.5.jar httpclient-4.4.1.jarhttpcore-4.1.2.jarhttpcore-4.2.4.jarhttpcore...    Author: Andrew Purtell , 2019-08-22, 20:41
[HBASE-22770] TestShell fails on trunk with NameError: missing class name (`org.apache.hadoop.hbase.ClusterStatus') - HBase - [issue]
...Running shell tests on trunk there are some failures related to use of ClusterStatus in admin.rb:Error: ^[[48;5;16;38;5;226;1mtest_decommission_regionservers_with_non-existant_server_name(Hb...    Author: Andrew Purtell , 2019-08-22, 10:18
[HBASE-22728] Upgrade jackson dependencies in branch-1 - HBase - [issue]
...Avoid Jackson versions and dependencies with known CVEs...    Author: Andrew Purtell , 2019-08-22, 02:27
[HBASE-22823] Mark Canary as Public/Evolving - HBase - [issue]
...Canary is marked as a Private class. Its interfaces could change at any time. Should we change the annotation on Canary to Public/Evolving? Or add annotations on some of these subtypes? I th...    Author: Andrew Purtell , 2019-08-21, 11:12