Github user joshelser commented on a diff in the pull request:
https://github.com/apache/accumulo/pull/256#discussion_r115286028
--- Diff:
core/src/main/java/org/apache/accumulo/core/file/blockfile/cache/BlockCache.java
---
@@ -17,10 +17,30 @@
*/
package org.apache.accumulo.core.file.blockfile.cache;
+import org.apache.accumulo.core.conf.AccumuloConfiguration;
+
/**
* Block cache interface.
*/
public interface BlockCache {
+
+ /**
+ * Start the block cache
+ *
+ * @param conf
+ * Accumulo configuration object
+ * @param maxSize
+ * maximum size of the on-heap cache
+ * @param blockSize
+ * size of the default RFile blocks
+ */
+ void start(AccumuloConfiguration conf, long maxSize, long blockSize)
throws Exception;
--- End diff --
Also, we could separate the configuration and start logic into separate
methods.
Unrelated thought: what about creating a POJO to encapsulate this
information. It would prevent drift in the configuration details from breaking
blockcache impls (e.g. BlockCacheConfiguration, presently made up of an
AccuConf, maxSize, and blockSize).
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