HBASE-18948: Added a note in the Tag implementation details in security.adoc
Coprocessors that run server-side on RegionServers can perform get and set operations on cell Tags. Tags are striped out at the RPC layer before the read response is sent back, so clients do not see these tags. Signed-off-by: Josh Elser <[email protected]> Project: http://git-wip-us.apache.org/repos/asf/hbase/repo Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/08446916 Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/08446916 Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/08446916 Branch: refs/heads/HBASE-20331 Commit: 08446916a0e3b64025e0a70bb031bdfdc5b9e5ea Parents: 7da0015 Author: Thiriguna Bharat Rao <[email protected]> Authored: Fri May 25 21:40:11 2018 +0530 Committer: Josh Elser <[email protected]> Committed: Mon Jun 4 11:03:58 2018 -0400 ---------------------------------------------------------------------- src/main/asciidoc/_chapters/security.adoc | 1 + 1 file changed, 1 insertion(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hbase/blob/08446916/src/main/asciidoc/_chapters/security.adoc ---------------------------------------------------------------------- diff --git a/src/main/asciidoc/_chapters/security.adoc b/src/main/asciidoc/_chapters/security.adoc index c007053..dae6c53 100644 --- a/src/main/asciidoc/_chapters/security.adoc +++ b/src/main/asciidoc/_chapters/security.adoc @@ -662,6 +662,7 @@ You also need to enable the DataBlockEncoder for the column family, for encoding You can enable compression of each tag in the WAL, if WAL compression is also enabled, by setting the value of `hbase.regionserver.wal.tags.enablecompression` to `true` in _hbase-site.xml_. Tag compression uses dictionary encoding. +Coprocessors that run server-side on RegionServers can perform get and set operations on cell Tags. Tags are stripped out at the RPC layer before the read response is sent back, so clients do not see these tags. Tag compression is not supported when using WAL encryption. [[hbase.accesscontrol.configuration]]
