Merge branch 'devel' of github.com:arangodb/arangodb into feature/dtrace

arangodb · jsteemann · Mar 20, 2020 · Mar 3, 2020 · Mar 4, 2020 · Mar 4, 2020
commit 3ffaa4c10830f995cba6e927217a8501c01838ce
diff --git a/CHANGELOG b/CHANGELOG
@@ -3,6 +3,81 @@ devel
 
 * Add DTRACE points to track a request through the infrastructure.
 
+* Fixed issue #11275: indexes backward compatibility broken in 3.5+.
+
+* Updated snowball dependency to the latest version.
+  More stemmers are available. Built-in analyzer list is unchanged.  
+
+* Reactive REST API endpoint at `/_admin/auth/reload`, as it is called by DC2DC.
+
+* Fix an endless loop in FollowerInfo::persistInAgency which could trigger
+  a hanger if a collection was dropped at the wrong time.
+
+* Updated LZ4 dependency to version 1.9.2.
+
+* Fix cluster representation of the collection figures for RocksDB.
+
+* Changed behavior for creating new collections in OneShard databases (i.e.
+  databases with "sharding" attribute set to "single"):
+
+  Previously it was allowed to override "distributeShardsLike" and
+  "numberOfShards" for each new collection. The default values were "_graphs"
+  and 1 and were not modified if the user did not alter them, but it was still
+  possible to alter them.
+  This is now (silenly) ignored. Any attempt to set any value for
+  "distributeShardsLike" or "numberOfShards" for new collections in a OneShard
+  database will silently be ignored. The collection will automatically be
+  sharded like the sharding prototype and will have a single shard.
+
+  The behavior has been adjusted to match the behavior when creating collections
+  in a cluster started with `--cluster.force-one-shard true` option. Here any
+  user-supplied values for "distributeShardsLike" or "numberOfShards" were
+  always ignored.
+
+  Now the behavior is identical for OneShard databases and databases in cluster
+  started with `--cluster.force-one-shard true`.
+
+  The web interface now also hides the "Distribute shards like" settings in this
+  case, and makes the "Number of shards" input box read-only.
+
+* Fix premature access to temporary path before a user-specified path was
+  read from the config options.
+
+* Rebuild UI and update swagger.
+
+* Added ability to store values in ArangoSearch views.
+
+* Added LIKE operator/function support to SEARCH clause.
+
+* Added NGRAM_SIMILARITY and NGRAM_POSITIONAL_SIMILARITY functions for
+  calculating Ngram similarity.
+
+* Added ngram fuzzy search. Supported by NGRAM_MATCH filter function for SEARCH
+  clause.
+
+* Allow to override the detected total amount of memory via an environment
+  variable ARANGODB_OVERRIDE_DETECTED_TOTAL_MEMORY.
+
+* `splice-subqueries` optimization is not limited by any type of operation within the
+  subquery any more. It can now be applied on every subquery and will be by default.
+  However they may be a performance impact on some queries where splice-subqueries
+  are not as performant as non-spliced subqueries. This is due to internal memory
+  management right now and will be addressed in future versions. Spliced subqueries
+  can be less performant if the query around the subquery is complex and requires
+  lots of variables, or variables with large content, but the subquery itself
+  does not require a lot of variables and produces many intermediate results
+  s.t. good batching within the query does not pay off against memory overhead.
+
+* Supervision to clean up zombie servers after 24h, if no
+  responsibility for shards.
+
+* Fix SORT RAND() LIMIT 1 optimization for RocksDB when only a projection of the
+  attributes was used. When a projection was used and that projection was
+  covered by an index (e.g. `_key` via the primary index), then the access
+  pattern was transformed from random order collection seek to an index access,
+  which always resulted in the same index entry to be returned and not a random
+  one.
+
 * Mark server startup options `--foxx.*`, `--frontend.*` and `--javascript.*`
   as single server and Coordinator only for documentation (`--dump-options`).
 

diff --git a/arangod/GeneralServer/SslServerFeature.cpp b/arangod/GeneralServer/SslServerFeature.cpp
@@ -222,9 +222,9 @@ static inline bool searchForProtocol(const unsigned char** out, unsigned char* o
   return false;
 }
 
-static int alpn_select_proto_cb(SSL *ssl, const unsigned char **out,
-                                unsigned char *outlen, const unsigned char *in,
-                                unsigned int inlen, void *arg) {
+static int alpn_select_proto_cb(SSL* ssl, const unsigned char** out,
+                                unsigned char* outlen, const unsigned char* in,
+                                unsigned int inlen, void* arg) {
   int rv = 0;
   bool const* preferHttp11InAlpn = (bool*) arg;
   if (*preferHttp11InAlpn) {