[
https://issues.apache.org/jira/browse/KAFKA-6343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alex Dunayevsky updated KAFKA-6343:
-----------------------------------
Description:
*Reproducing*: Create 5k topics *from the code* quickly, without any delays.
Wait until brokers will finish loading them. This will actually never happen,
since all brokers will go down after approx 10-15 minutes or more, depending on
the hardware.
*Heap*: -Xmx/Xms: 5G, 10G, 50G, 256G...
*Topology*: 3 brokers, 3 zk.
*Code for 5k topic creation:*
{code:java}
package kafka
import kafka.admin.AdminUtils
import kafka.utils.{Logging, ZkUtils}
object TestCreateTopics extends App with Logging {
val zkConnect = "grid978:2185"
var zkUtils = ZkUtils(zkConnect, 6000, 6000, isZkSecurityEnabled = false)
for (topic <- 1 to 5000) {
AdminUtils.createTopic(
topic = s"${topic.toString}",
partitions = 10,
replicationFactor = 2,
zkUtils = zkUtils
)
logger.info(s"Created topic ${topic.toString}")
}
}
{code}
*OOM:*
{code:java}
java.io.IOException: Map failed
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:920)
at kafka.log.AbstractIndex.<init>(AbstractIndex.scala:61)
at kafka.log.OffsetIndex.<init>(OffsetIndex.scala:52)
at kafka.log.LogSegment.<init>(LogSegment.scala:67)
at kafka.log.Log.loadSegments(Log.scala:255)
at kafka.log.Log.<init>(Log.scala:108)
at kafka.log.LogManager.createLog(LogManager.scala:362)
at kafka.cluster.Partition.getOrCreateReplica(Partition.scala:94)
at
kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:174)
at
kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:174)
at scala.collection.mutable.HashSet.foreach(HashSet.scala:78)
at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:174)
at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:168)
at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:234)
at kafka.utils.CoreUtils$.inWriteLock(CoreUtils.scala:242)
at kafka.cluster.Partition.makeLeader(Partition.scala:168)
at
kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:758)
at
kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:757)
at
scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
at
scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
at
scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:230)
at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)
at scala.collection.mutable.HashMap.foreach(HashMap.scala:99)
at kafka.server.ReplicaManager.makeLeaders(ReplicaManager.scala:757)
at
kafka.server.ReplicaManager.becomeLeaderOrFollower(ReplicaManager.scala:703)
at kafka.server.KafkaApis.handleLeaderAndIsrRequest(KafkaApis.scala:148)
at kafka.server.KafkaApis.handle(KafkaApis.scala:82)
at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.OutOfMemoryError: Map failed
at sun.nio.ch.FileChannelImpl.map0(Native Method)
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:917)
... 28 more
{code}
was:
Create 5k topics *from the code* quickly, without any delays. Wait until
brokers will finish loading them. This will actually never happen, since all
brokers will go down after approx 10-15 minutes or more, depending on the
hardware.
*Heap*: -Xmx/Xms: 5G, 10G, 50G, 256G...
*Topology*: 3 brokers, 3 zk.
*Code for 5k topic creation:*
{code:java}
package kafka
import kafka.admin.AdminUtils
import kafka.utils.{Logging, ZkUtils}
object TestCreateTopics extends App with Logging {
val zkConnect = "grid978:2185"
var zkUtils = ZkUtils(zkConnect, 6000, 6000, isZkSecurityEnabled = false)
for (topic <- 1 to 5000) {
AdminUtils.createTopic(
topic = s"${topic.toString}",
partitions = 10,
replicationFactor = 2,
zkUtils = zkUtils
)
logger.info(s"Created topic ${topic.toString}")
}
}
{code}
*OOM:*
{code:java}
java.io.IOException: Map failed
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:920)
at kafka.log.AbstractIndex.<init>(AbstractIndex.scala:61)
at kafka.log.OffsetIndex.<init>(OffsetIndex.scala:52)
at kafka.log.LogSegment.<init>(LogSegment.scala:67)
at kafka.log.Log.loadSegments(Log.scala:255)
at kafka.log.Log.<init>(Log.scala:108)
at kafka.log.LogManager.createLog(LogManager.scala:362)
at kafka.cluster.Partition.getOrCreateReplica(Partition.scala:94)
at
kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:174)
at
kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:174)
at scala.collection.mutable.HashSet.foreach(HashSet.scala:78)
at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:174)
at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:168)
at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:234)
at kafka.utils.CoreUtils$.inWriteLock(CoreUtils.scala:242)
at kafka.cluster.Partition.makeLeader(Partition.scala:168)
at
kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:758)
at
kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:757)
at
scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
at
scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
at
scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:230)
at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)
at scala.collection.mutable.HashMap.foreach(HashMap.scala:99)
at kafka.server.ReplicaManager.makeLeaders(ReplicaManager.scala:757)
at
kafka.server.ReplicaManager.becomeLeaderOrFollower(ReplicaManager.scala:703)
at kafka.server.KafkaApis.handleLeaderAndIsrRequest(KafkaApis.scala:148)
at kafka.server.KafkaApis.handle(KafkaApis.scala:82)
at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.OutOfMemoryError: Map failed
at sun.nio.ch.FileChannelImpl.map0(Native Method)
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:917)
... 28 more
{code}
> OOM as the result of creation of 5k topics
> ------------------------------------------
>
> Key: KAFKA-6343
> URL: https://issues.apache.org/jira/browse/KAFKA-6343
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 0.10.1.1
> Environment: RHEL 7, RAM 755GB
> Reporter: Alex Dunayevsky
>
> *Reproducing*: Create 5k topics *from the code* quickly, without any delays.
> Wait until brokers will finish loading them. This will actually never happen,
> since all brokers will go down after approx 10-15 minutes or more, depending
> on the hardware.
> *Heap*: -Xmx/Xms: 5G, 10G, 50G, 256G...
> *Topology*: 3 brokers, 3 zk.
> *Code for 5k topic creation:*
> {code:java}
> package kafka
> import kafka.admin.AdminUtils
> import kafka.utils.{Logging, ZkUtils}
> object TestCreateTopics extends App with Logging {
> val zkConnect = "grid978:2185"
> var zkUtils = ZkUtils(zkConnect, 6000, 6000, isZkSecurityEnabled = false)
> for (topic <- 1 to 5000) {
> AdminUtils.createTopic(
> topic = s"${topic.toString}",
> partitions = 10,
> replicationFactor = 2,
> zkUtils = zkUtils
> )
> logger.info(s"Created topic ${topic.toString}")
> }
> }
> {code}
> *OOM:*
> {code:java}
> java.io.IOException: Map failed
> at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:920)
> at kafka.log.AbstractIndex.<init>(AbstractIndex.scala:61)
> at kafka.log.OffsetIndex.<init>(OffsetIndex.scala:52)
> at kafka.log.LogSegment.<init>(LogSegment.scala:67)
> at kafka.log.Log.loadSegments(Log.scala:255)
> at kafka.log.Log.<init>(Log.scala:108)
> at kafka.log.LogManager.createLog(LogManager.scala:362)
> at kafka.cluster.Partition.getOrCreateReplica(Partition.scala:94)
> at
> kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:174)
> at
> kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:174)
> at scala.collection.mutable.HashSet.foreach(HashSet.scala:78)
> at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:174)
> at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:168)
> at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:234)
> at kafka.utils.CoreUtils$.inWriteLock(CoreUtils.scala:242)
> at kafka.cluster.Partition.makeLeader(Partition.scala:168)
> at
> kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:758)
> at
> kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:757)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
> at
> scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:230)
> at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)
> at scala.collection.mutable.HashMap.foreach(HashMap.scala:99)
> at kafka.server.ReplicaManager.makeLeaders(ReplicaManager.scala:757)
> at
> kafka.server.ReplicaManager.becomeLeaderOrFollower(ReplicaManager.scala:703)
> at
> kafka.server.KafkaApis.handleLeaderAndIsrRequest(KafkaApis.scala:148)
> at kafka.server.KafkaApis.handle(KafkaApis.scala:82)
> at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.OutOfMemoryError: Map failed
> at sun.nio.ch.FileChannelImpl.map0(Native Method)
> at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:917)
> ... 28 more
> {code}
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