prateekm commented on a change in pull request #1209: SAMZA-2324: Adding KV
store metrics for rocksdb
URL: https://github.com/apache/samza/pull/1209#discussion_r342867181
##########
File path:
samza-kv-rocksdb/src/main/scala/org/apache/samza/storage/kv/RocksDbKeyValueStore.scala
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@@ -101,6 +102,8 @@ object RocksDbKeyValueStore extends Logging {
}
))
+ metrics.newGauge("rocksdb.size-on-disk", () =>
FileUtils.sizeOfDirectory(new File(dir.getAbsolutePath)))
Review comment:
1. Why not use RocksDB internal metric?
2. Regardless of 1, should not re-use the rocksdb internal metrics naming
convention to report custom metrics.
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