Any thoughts on this matter? Someone, please help. On Tue, Sep 18, 2018 at 6:05 PM Shantanu Deshmukh <shantanu...@gmail.com> wrote:
> Additionally, here's the producer config > > kafka.bootstrap.servers=x.x.x.x:9092,x.x.x.x:9092,x.x.x.x:9092 > kafka.acks=0 > kafka.key.serializer=org.apache.kafka.common.serialization.StringSerializer > > kafka.value.serializer=org.apache.kafka.common.serialization.StringSerializer > kafka.max.block.ms=1000 > kafka.request.timeout.ms=1000 > kafka.max.in.flight.requests.per.connection=1 > kafka.retries=0 > kafka.compression.type=gzip > kafka.security.protocol=SSL > kafka.ssl.truststore.location=/data/kafka/kafka-server-truststore.jks > kafka.ssl.truststore.password=XXXXXX > kafka.linger.ms=300 > logger.level=INFO > > On Tue, Sep 18, 2018 at 5:36 PM Shantanu Deshmukh <shantanu...@gmail.com> > wrote: > >> Hello, >> >> We have a 3 broker Kafka 0.10.1.0 deployment in production. There are >> some applications which have Kafka Producers embedded in them which send >> application logs to a topic. This topic has 10 partitions with replication >> factor of 3. >> >> We are observing that memory usage on some of these application servers >> keep shooting through the roof intermittently. After taking heapdump we >> found out that top suspects were: >> *---------------------* >> >> >> *org.apache.kafka.common.network.Selector -* >> >> occupies *352,519,104 (24.96%)* bytes. The memory is accumulated in one >> instance of *"byte[]"* loaded by *"<system class loader>"*. >> >> *org.apache.kafka.common.network.KafkaChannel -* >> >> occupies *352,527,424 (24.96%)* bytes. The memory is accumulated in one >> instance of *"byte[]"* loaded by *"<system class loader>"* >> >> * --------------------- * >> >> Both of these were holding about 352MB of space. 3 such instances, so >> they were consuming about 1.2GB of memory. >> >> Now regarding usage of producers. Not a huge amount of logs are being >> sent to Kafka cluster. It is about 200 msgs/sec. Only one producer object >> is being used throughout application. Async send function is used. >> >> What could be the cause of such huge memory usage? Is this some sort of >> memory leak in this specific Kafka version? >> >>
