HBASE-22609 [Docs] More detail documentation about 'hbase.server.thread.wakefrequency'

Author: Reidddddd

src/main/asciidoc/_chapters/hbase-default.adoc

@@ -756,10 +756,8 @@ Maximum retries. This is a maximum number of iterations
 `10`
 
 
-[[hbase.balancer.period
-    ]]
-*`hbase.balancer.period
-    `*::
+[[hbase.balancer.period]]
+*`hbase.balancer.period`*::
 +
 .Description
 Period at which the region balancer runs in the Master.
@@ -782,12 +780,35 @@ Rebalance if any regionserver has average + (average * slop) regions.
 *`hbase.server.thread.wakefrequency`*::
 +
 .Description
-Time to sleep in between searches for work (in milliseconds).
-    Used as sleep interval by service threads such as log roller.
+In master side, this config is the period used for FS related behaviors: checking if hdfs is
+out of safe mode, setting or checking hbase.version file, setting or checking hbase.id file. Using
+default value should be fine. In regionserver side, this config is used in several places: flushing
+check interval, compaction check interval, wal rolling check interval. Specially, admin can tune
+flushing|compaction check interval by hbase.regionserver.flush.check.period
+and hbase.regionserver.compaction.check.period.
 +
 .Default
 `10000`
 
+[[hbase.regionserver.flush.check.period]]
+*`hbase.regionserver.flush.check.period`*::
++
+.Description
+It determines the flushing check period of PeriodicFlusher in regionserver. If unset, it uses
+hbase.server.thread.wakefrequency as default value.
++
+.Default
+`${hbase.server.thread.wakefrequency}`
+
+[[hbase.regionserver.compaction.check.period]]
+*`hbase.regionserver.compaction.check.period`*::
++
+.Description
+It determines the compaction check period of CompactionChecker in regionserver. If unset, it uses
+hbase.server.thread.wakefrequency as default value.
++
+.Default
+`${hbase.server.thread.wakefrequency}`
 
 [[hbase.server.versionfile.writeattempts]]
 *`hbase.server.versionfile.writeattempts`*::