doc: update the warning about shared dictionary training

This commit updates the inadequate warning on the Advanced Internode (RPC) Compression page. The warning is replaced with a note about how training data is encrypted. Fixes https://github.com/scylladb/scylladb/issues/29109 Closes scylladb/scylladb#29111 (cherry picked from commit 88b98fac3a)
Update pgo profiles - aarch64
2026-03-25 10:59:45 +02:00 · 2026-02-15 04:41:38 +02:00
2 changed files with 6 additions and 7 deletions
--- a/docs/operating-scylla/procedures/config-change/advanced-internode-compression.rst
+++ b/docs/operating-scylla/procedures/config-change/advanced-internode-compression.rst
@@ -57,12 +57,11 @@ To enable shared dictionaries:
    internode_compression_enable_advanced: true
    rpc_dict_training_when: when_leader

-.. warning:: Enabling shared dictionary training might leak unencrypted data to disk.
+.. note::

-             Trained dictionaries contain randomly chosen samples of data transferred between
-             nodes. The data samples are persisted in the Raft log, which is not encrypted.
-             As a result, some data from otherwise encrypted tables might be stored on disk
-             unencrypted.
+   Some dictionary training data may be encrypted using storage-level encryption
+   (if enabled) instead of database-level encryption, meaning protection is
+   applied at the storage layer rather than within the database itself.


 Reference
--- a/pgo/profiles/aarch64/profile.profdata.xz
+++ b/pgo/profiles/aarch64/profile.profdata.xz
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a17fbafa8f98c2887060a4c7970db866d55c048782b2927f22358eeb5c1f4acd
-size 6014288
+oid sha256:ad706a552530c3510df6ef5ab39745867f6ca820852484eaff9a878cd0d0a4fb
+size 6021352