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From Eugen Cepoi <cepoi.eu...@gmail.com>
Subject Re: spark streaming failing to replicate blocks
Date Thu, 22 Oct 2015 15:23:54 GMT
Huh indeed this worked, thanks. Do you know why this happens, is that some
known issue?

Thanks,
Eugen

2015-10-22 19:08 GMT+07:00 Akhil Das <akhil@sigmoidanalytics.com>:

> Can you try fixing spark.blockManager.port to specific port and see if the
> issue exists?
>
> Thanks
> Best Regards
>
> On Mon, Oct 19, 2015 at 6:21 PM, Eugen Cepoi <cepoi.eugen@gmail.com>
> wrote:
>
>> Hi,
>>
>> I am running spark streaming 1.4.1 on EMR (AMI 3.9) over YARN.
>> The job is reading data from Kinesis and the batch size is of 30s (I used
>> the same value for the kinesis checkpointing).
>> In the executor logs I can see every 5 seconds a sequence of stacktraces
>> indicating that the block replication failed. I am using the default
>> storage level MEMORY_AND_DISK_SER_2.
>> WAL is not enabled nor checkpointing (the checkpoint dir is configured
>> for the spark context but not for the streaming context).
>>
>> Here is an example of those logs for ip-10-63-160-18. They occur in every
>> executor while trying to replicate to any other executor.
>>
>>
>> 15/10/19 03:11:55 INFO nio.SendingConnection: Initiating connection to [ip-10-63-160-18.ec2.internal/10.63.160.18:50929]
>> 15/10/19 03:11:55 WARN nio.SendingConnection: Error finishing connection to ip-10-63-160-18.ec2.internal/10.63.160.18:50929
>> java.net.ConnectException: Connection refused
>> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
>> 	at org.apache.spark.network.nio.SendingConnection.finishConnect(Connection.scala:344)
>> 	at org.apache.spark.network.nio.ConnectionManager$$anon$10.run(ConnectionManager.scala:292)
>> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> 	at java.lang.Thread.run(Thread.java:745)
>> 15/10/19 03:11:55 ERROR nio.ConnectionManager: Exception while sending message.
>> java.net.ConnectException: Connection refused
>> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
>> 	at org.apache.spark.network.nio.SendingConnection.finishConnect(Connection.scala:344)
>> 	at org.apache.spark.network.nio.ConnectionManager$$anon$10.run(ConnectionManager.scala:292)
>> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> 	at java.lang.Thread.run(Thread.java:745)
>> 15/10/19 03:11:55 INFO nio.ConnectionManager: Notifying ConnectionManagerId(ip-10-63-160-18.ec2.internal,50929)
>> 15/10/19 03:11:55 INFO nio.ConnectionManager: Handling connection error on connection
to ConnectionManagerId(ip-10-63-160-18.ec2.internal,50929)
>> 15/10/19 03:11:55 WARN storage.BlockManager: Failed to replicate input-1-1445242310000
to BlockManagerId(3, ip-10-159-151-22.ec2.internal, 50929), failure #0
>> java.net.ConnectException: Connection refused
>> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
>> 	at org.apache.spark.network.nio.SendingConnection.finishConnect(Connection.scala:344)
>> 	at org.apache.spark.network.nio.ConnectionManager$$anon$10.run(ConnectionManager.scala:292)
>> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> 	at java.lang.Thread.run(Thread.java:745)
>> 15/10/19 03:11:55 INFO nio.ConnectionManager: Removing SendingConnection to ConnectionManagerId(ip-10-63-160-18.ec2.internal,50929)
>> 15/10/19 03:11:55 INFO nio.SendingConnection: Initiating connection to [ip-10-63-160-18.ec2.internal/10.63.160.18:39506]
>> 15/10/19 03:11:55 WARN nio.SendingConnection: Error finishing connection to ip-10-63-160-18.ec2.internal/10.63.160.18:39506
>> java.net.ConnectException: Connection refused
>> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
>> 	at org.apache.spark.network.nio.SendingConnection.finishConnect(Connection.scala:344)
>> 	at org.apache.spark.network.nio.ConnectionManager$$anon$10.run(ConnectionManager.scala:292)
>> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> 	at java.lang.Thread.run(Thread.java:745)
>> 15/10/19 03:11:55 ERROR nio.ConnectionManager: Exception while sending message.
>> java.net.ConnectException: Connection refused
>> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
>> 	at org.apache.spark.network.nio.SendingConnection.finishConnect(Connection.scala:344)
>> 	at org.apache.spark.network.nio.ConnectionManager$$anon$10.run(ConnectionManager.scala:292)
>> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> 	at java.lang.Thread.run(Thread.java:745)
>> 15/10/19 03:11:55 INFO nio.ConnectionManager: Notifying ConnectionManagerId(ip-10-63-160-18.ec2.internal,39506)
>> 15/10/19 03:11:55 INFO nio.ConnectionManager: Handling connection error on connection
to ConnectionManagerId(ip-10-63-160-18.ec2.internal,39506)
>> 15/10/19 03:11:55 INFO nio.ConnectionManager: Removing SendingConnection to ConnectionManagerId(ip-10-63-160-18.ec2.internal,39506)
>> 15/10/19 03:11:55 WARN storage.BlockManager: Failed to replicate input-1-1445242310000
to BlockManagerId(2, ip-10-141-12-91.ec2.internal, 39506), failure #1
>> java.net.ConnectException: Connection refused
>> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
>> 	at org.apache.spark.network.nio.SendingConnection.finishConnect(Connection.scala:344)
>> 	at org.apache.spark.network.nio.ConnectionManager$$anon$10.run(ConnectionManager.scala:292)
>> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> 	at java.lang.Thread.run(Thread.java:745)
>> 15/10/19 03:11:55 WARN storage.BlockManager: Block input-1-1445242310000 replicated
to only 0 peer(s) instead of 1 peers
>> 15/10/19 03:11:55 INFO receiver.BlockGenerator: Pushed block input-1-1445242310000
>>
>>
>>
>> Thanks,
>> Eugen
>>
>
>

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