Merge pull request #30 from arruzk/merge-tree-config

Merge tree configuration

Author: AlexeySetevoi

README.md

@@ -158,6 +158,13 @@ clickhouse_kafka_topics_config:
     fetch_min_bytes: 120000
 ```
 
+F: You can manage Merge Tree config. For the list of available parameters, see [MergeTreeSettings.h](https://github.com/yandex/ClickHouse/blob/master/dbms/src/Storages/MergeTree/MergeTreeSettings.h).
+```yaml
+clickhouse_merge_tree_config:
+  max_suspicious_broken_parts: 5
+  parts_to_throw_insert: 600
+```
+
 Example Playbook
 ----------------
 

defaults/main.yml

@@ -95,3 +95,5 @@ max_partitions_per_insert_block: 100
 clickhouse_kafka_config: []
 
 clickhouse_kafka_topics_config: []
+
+clickhouse_merge_tree_config: []

templates/config.j2

@@ -306,11 +306,13 @@
     </distributed_ddl>
 
     <!-- Settings to fine tune MergeTree tables. See documentation in source code, in MergeTreeSettings.h -->
-    <!--
-    <merge_tree>
-        <max_suspicious_broken_parts>5</max_suspicious_broken_parts>
-    </merge_tree>
-    -->
+    {% if clickhouse_merge_tree_config is defined %}
+        <merge_tree>
+            {% for config in clickhouse_merge_tree_config %}
+                <{{ config }}>{{ clickhouse_merge_tree_config[config] }}</{{ config }}>
+            {% endfor %}
+        </merge_tree>
+    {% endif %}
 
     <!-- Protection from accidental DROP.
          If size of a MergeTree table is greater than max_table_size_to_drop (in bytes) than table could not be dropped with any DROP query.