Changelog note and documentation for #826

- Merge #826: Аdd a metric about the maximum number of collisions in
  lrushah.

diff --git a/doc/Changelog b/doc/Changelog
index 37c081293f3c52e2a05e3cf2d2b372993044556f..1830b82f352a0497201c76bbc37aac88a1b2181e 100644 (file)
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,3 +1,7 @@
+13 January 2023: Wouter
+       - Merge #826: Аdd a metric about the maximum number of collisions in
+         lrushah.
+
 9 January 2023: Wouter
        - Fix python module install path detection.
        - Fix python version detection in configure.

diff --git a/doc/unbound-control.8.in b/doc/unbound-control.8.in
index fd165cb521647fe75c5774ac1299b855ffddce6a..794da34be2470361908a355781279a5b3bfe60f9 100644 (file)
--- a/doc/unbound-control.8.in
+++ b/doc/unbound-control.8.in
@@ -653,6 +653,18 @@ timing and protocol support information.
 The number of items in the key cache.  These are DNSSEC keys, one item
 per delegation point, and their validation status.
 .TP
+.I msg.cache.max_collisions
+The maximum number of hash table collisions in the msg cache. This is the
+number of hashes that are identical when a new element is inserted in the
+hash table. If the value is very large, something is wrong with the performance
+of the hash table, hash values are incorrect or malicious.
+.TP
+.I rrset.cache.max_collisions
+The maximum number of hash table collisions in the rrset cache. This is the
+number of hashes that are identical when a new element is inserted in the
+hash table. If the value is very large, something is wrong with the performance
+of the hash table, hash values are incorrect or malicious.
+.TP
 .I dnscrypt_shared_secret.cache.count
 The number of items in the shared secret cache. These are precomputed shared
 secrets for a given client public key/server secret key pair. Shared secrets