HBASE-20559 Port HBASE-18083 (Make large/small file clean thread number configurable in HFileCleaner) to branch-1

[taklwu]

Last port commit for HBASE-20555

[z-york]

Same as original patch. Waiting on Testing

[taklwu]

• mvn build passed

[INFO] Apache HBase Shaded Packaging Invariants ........... SUCCESS [  0.716 s]
[INFO] Apache HBase - Archetypes .......................... SUCCESS [  0.020 s]
[INFO] Apache HBase - Exemplar for hbase-client archetype . SUCCESS [  0.513 s]
[INFO] Apache HBase - Exemplar for hbase-shaded-client archetype SUCCESS [  0.412 s]
[INFO] Apache HBase - Archetype builder ................... SUCCESS [  0.313 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:02 min
[INFO] Finished at: 2018-07-20T23:00:24+00:00
[INFO] Final Memory: 197M/2767M
[INFO] ------------------------------------------------------------------------

• mvn test TestHFileCleaner passed

[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running org.apache.hadoop.hbase.master.cleaner.TestHFileCleaner
[INFO] Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 24.754 s - in org.apache.hadoop.hbase.master.cleaner.TestHFileCleaner
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 6, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO]
[INFO] --- maven-surefire-plugin:2.20.1:test (secondPartTestsExecution) @ hbase-server ---
[INFO] Tests are skipped.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:01 min
[INFO] Finished at: 2018-07-20T15:44:47-07:00
[INFO] Final Memory: 66M/1212M
[INFO] ------------------------------------------------------------------------

• check compat passed

$ ./dev-support/checkcompatibility.py \
--annotation org.apache.hadoop.hbase.classification.InterfaceAudience.Public \
--annotation org.apache.hadoop.hbase.classification.InterfaceAudience.LimitedPrivate \
--include-file "hbase-*" \
780724b15a523b4a73c387627aac14fab45027b6
...
INFO:root:Creating empty scratch dir /Users/wutaklon/dataplane/hbase/hbase/target/compat-check
INFO:root:Checking out 780724b15a523b4a73c387627aac14fab45027b6 in /Users/wutaklon/dataplane/hbase/hbase/target/compat-check/src
INFO:root:Checking out 498e7f8d5500bad15de5743c805fda9c9a9e4961 in /Users/wutaklon/dataplane/hbase/hbase/target/compat-check/dst
INFO:root:Building in /Users/wutaklon/dataplane/hbase/hbase/target/compat-check/src
...

	/Users/wutaklon/dataplane/hbase/hbase/target/compat-check/dst/hbase-examples/target/hbase-examples-1.5.0-SNAPSHOT.jar
INFO:root:Annotations are: ['org.apache.hadoop.hbase.classification.InterfaceAudience.Public', 'org.apache.hadoop.hbase.classification.InterfaceAudience.LimitedPrivate']
INFO:root:Annotations path: /Users/wutaklon/dataplane/hbase/hbase/target/compat-check/annotations.txt
INFO:root:Results: {'binary': {'problems': 0, 'warnings': 0}, 'source': {'problems': 0, 'warnings': 0}}

[taklwu]

this has been merged as 896b69a