[KAFKA][GRAYLOG] Прямой буфер OOM
У меня есть простая установка с несколькими производителями, пишущими к одному kafka с несколькими темами. Мой единственный потребитель - это экземпляр Graylog, пишущий в ES. Через неделю или две активности кафку начали бросать:
[2017-10-03 13:17:56,018] ERROR Processor got uncaught exception. (kafka.network.Processor)
java.lang.OutOfMemoryError: Direct buffer memory
at java.nio.Bits.reserveMemory(Bits.java:694)
at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
at sun.nio.ch.Util.getTemporaryDirectBuffer(Util.java:241)
at sun.nio.ch.IOUtil.read(IOUtil.java:195)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at org.apache.kafka.common.network.PlaintextTransportLayer.read(PlaintextTransportLayer.java:108)
at org.apache.kafka.common.network.NetworkReceive.readFromReadableChannel(NetworkReceive.java:97)
at org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:71)
at org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:153)
at org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:134)
at org.apache.kafka.common.network.Selector.poll(Selector.java:286)
at kafka.network.Processor.run(SocketServer.scala:413)
at java.lang.Thread.run(Thread.java:748)
[2017-10-03 13:17:56,530] ERROR Processor got uncaught exception. (kafka.network.Processor)
java.lang.OutOfMemoryError: Direct buffer memory
at java.nio.Bits.reserveMemory(Bits.java:694)
at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
at sun.nio.ch.Util.getTemporaryDirectBuffer(Util.java:241)
at sun.nio.ch.IOUtil.read(IOUtil.java:195)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at org.apache.kafka.common.network.PlaintextTransportLayer.read(PlaintextTransportLayer.java:108)
at org.apache.kafka.common.network.NetworkReceive.readFromReadableChannel(NetworkReceive.java:97)
at org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:71)
at org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:153)
at org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:134)
at org.apache.kafka.common.network.Selector.poll(Selector.java:286)
at kafka.network.Processor.run(SocketServer.scala:413)
at java.lang.Thread.run(Thread.java:748)
Кажется, что пока все работает нормально, но я ожидаю, что эта кафка пойдет не так. Могу ли я что-нибудь сделать с этим?
Машина Graylog: 10 ГБ ОЗУ, 6 ЦП, 2,7 МГц, сервер JVM:
\_ /usr/bin/java -Xms5g -Xmx5g -XX:NewRatio=1 -server -XX:+ResizeTLAB -XX:+UseConcMarkSweepGC -XX:+CMSConcurrentMTEnabled -XX:+CMSClassUnloadingEnabled -XX:+UseParNewGC -XX:-OmitStackTraceInFastThrow -jar -Dlog4j.configurationFile=file:///etc/graylog/server/log4j2.xml -Djava.library.path=/usr/share/graylog-server/lib/sigar -Dgraylog2.installation_source=rpm /usr/share/graylog-server/graylog.jar server -f /etc/graylog/server/server.conf -np
кафка зоопарк:
java -Xmx512M -Xms512M -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:+DisableExplicitGC -Djava.awt.headless=true -Xloggc:/data/kafka/bin/../logs/zookeeper-gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dkafka.logs.dir=/data/kafka/bin/../logs -Dlog4j.configuration=file:./../config/log4j.properties -cp :/data/kafka/bin/../libs/* org.apache.zookeeper.server.quorum.QuorumPeerMain /data/kafka/config/zookeeper.properties
Кафка:
java -Xmx1G -Xms1G -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:+DisableExplicitGC -Djava.awt.headless=true -Xloggc:/data/kafka/bin/../logs/kafkaServer-gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dkafka.logs.dir=/data/kafka/bin/../logs -Dlog4j.configuration=file:./../config/log4j.properties -cp :/data/kafka/bin/../libs/* kafka.Kafka /data/kafka/config/server.properties
Статистика памяти на машине Кафка / Грайлог:
total used free shared buff/cache available
Mem: 9831 7337 133 6 2360 2130
Swap: 2047 2047 0
3xElasticsearch: 10 ГБ ОЗУ, 8 ЦП 2,7 МГц
/bin/java -Xms5g -Xmx5g -Djava.awt.headless=true -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -XX:+DisableExplicitGC -Dfile.encoding=UTF-8 -Djna.nosys=true -Des.path.home=/usr/share/elasticsearch -cp /usr/share/elasticsearch/lib/elasticsearch-2.4.5.jar:/usr/share/elasticsearch/lib/* org.elasticsearch.bootstrap.Elasticsearch start -Des.pidfile=/var/run/elasticsearch/elasticsearch.pid -Des.default.path.home=/usr/share/elasticsearch -Des.default.path.logs=/var/log/elasticsearch -Des.default.path.data=/var/lib/elasticsearch -Des.default.path.conf=/etc/elasticsearch