Github user ScrapCodes commented on a diff in the pull request:
https://github.com/apache/spark/pull/18143#discussion_r119277567
--- Diff:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/CachedKafkaConsumer.scala
---
@@ -310,62 +308,45 @@ private[kafka010] object CachedKafkaConsumer extends
Logging {
private lazy val cache = {
val conf = SparkEnv.get.conf
- val capacity = conf.getInt("spark.sql.kafkaConsumerCache.capacity", 64)
- new ju.LinkedHashMap[CacheKey, CachedKafkaConsumer](capacity, 0.75f,
true) {
- override def removeEldestEntry(
- entry: ju.Map.Entry[CacheKey, CachedKafkaConsumer]): Boolean = {
- if (entry.getValue.inuse == false && this.size > capacity) {
- logWarning(s"KafkaConsumer cache hitting max capacity of
$capacity, " +
- s"removing consumer for ${entry.getKey}")
- try {
- entry.getValue.close()
- } catch {
- case e: SparkException =>
- logError(s"Error closing earliest Kafka consumer for
${entry.getKey}", e)
- }
- true
- } else {
- false
+ val capacityConfigString: String =
"spark.sql.kafkaConsumerCache.capacity"
--- End diff --
This is used later to construct warning log message.
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