Hi,
I'm running a two-node Elasticsearch cluster. In the last days performance
has been really poor, with lots of timeouts and ES complaining about heap
memory. Here is some information about the cluster:
- Elasticsearch v0.90.9
- Running on Amazon EC2
- Each host has 7.5 GB RAM and 4 CPUs.
- 3GB Java heap (see below)
- On each host, documents are inserted using a logstash 1.3.3 instance
(elasticsearch output behaving as a node) running on localhost, i.e. each
logstash inserts into localhost but the ES nodes are clustered and do see
each other.
- Read requests are made by Kibana.
Here is the complete command line:
/usr/lib/jvm/java-6-sun/bin/java -Xms3g -Xmx3g -Xss256k
-Djava.awt.headless=true -XX:+UseParNewGC -XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly
-XX:+HeapDumpOnOutOfMemoryError -Delasticsearch
-Des.pidfile=/var/run/elasticsearch.pid
-Des.path.home=/usr/share/elasticsearch -cp
:/usr/share/elasticsearch/lib/elasticsearch-0.90.9.jar:/usr/share/elasticsearch/lib/*:/usr/share/elasticsearch/lib/sigar/*
-Des.default.config=/etc/elasticsearch/elasticsearch.yml
-Des.default.path.home=/usr/share/elasticsearch
-Des.default.path.logs=/var/log/elasticsearch
-Des.default.path.data=/mnt/data/elasticsearch
-Des.default.path.work=/tmp/elasticsearch
-Des.default.path.conf=/etc/elasticsearch
org.elasticsearch.bootstrap.ElasticSearch
Here is an extract of the log file:
[2014-03-27 23:16:17,139][WARN ][transport.netty ] [aws351]
exception caught on transport layer [[id: 0x6eaef20a, /10.121.14.130:10784
=> /10.88.185.107:9300]], closing connection
java.lang.OutOfMemoryError: Java heap space
at
org.elasticsearch.common.compress.BufferRecycler.allocDecodeBuffer(BufferRecycler.java:137)
at
org.elasticsearch.common.compress.lzf.LZFCompressedStreamInput.<init>(LZFCompressedStreamInput.java:46)
at
org.elasticsearch.common.compress.lzf.LZFCompressor.streamInput(LZFCompressor.java:135)
at
org.elasticsearch.common.io.stream.CachedStreamInput.cachedHandlesCompressed(CachedStreamInput.java:69)
at
org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:102)
at
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)
at
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
at
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
at
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)
at
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at
org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
at
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)
at
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)
at
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
at
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
at
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)
at
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
at
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
at
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
[2014-03-27 23:16:25,725][WARN ][transport.netty ] [aws351]
exception caught on transport layer [[id: 0x6eaef20a, /10.121.14.130:10784
:> /10.88.185.107:9300]], closing connection
java.io.StreamCorruptedException: invalid internal transport message format
at
org.elasticsearch.transport.netty.SizeHeaderFrameDecoder.decode(SizeHeaderFrameDecoder.java:27)
at
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:425)
at
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)
at
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at
org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
at
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)
at
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)
at
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
at
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
at
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)
at
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
at
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
at
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
[2014-03-27 23:16:25,723][WARN ][transport ] [aws351]
Transport response handler not found of id [206090]
[2014-03-27 23:20:46,944][WARN ][transport ] [aws351]
Received response for a request that has timed out, sent [135894ms] ago,
timed out [18629ms] ago, action [discovery/zen/fd/ping], node
[[aws390][NkiolhmIT8uzBjGjChkpOQ][inet[/10.121.14.130:9300]]], id [206116]
I'm particularly surprised by the "heap space" thing, as both hosts still
have around 3GB available RAM.
I hope I'm not missing anything obvious – I'm new at Elasticsearch
administration. Please also tell me if any additional information, such as
particular configuration settings, is needed.
Regards.
--
David
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