sure I am trying to use
SparkContext.setCheckpointDir(directory: String)
to set it up.
I agree that once one start creating subdirectory
like "~/checkpoints/${APPLICATION_NAME}/${USERNAME}!" it becomes a bit messy
cheers
Dr Mich Talebzadeh
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On 3 June 2016 at 21:52, David Newberger <[email protected]>
wrote:
> Hi Mich,
>
> My gut says you are correct that each application should have its own
> checkpoint directory. Though honestly I’m a bit fuzzy on checkpointing
> still as I’ve not worked with it much yet.
>
>
>
> *Cheers,*
>
>
>
> *David Newberger*
>
>
>
> *From:* Mich Talebzadeh [mailto:[email protected]]
> *Sent:* Friday, June 3, 2016 3:40 PM
> *To:* David Newberger
> *Cc:* user @spark
>
> *Subject:* Re: Twitter streaming error : No lease on
> /user/hduser/checkpoint/temp (inode 806125): File does not exist.
>
>
>
> Hi David
>
>
>
> yes they do
>
>
>
> The first streaming job does
>
>
>
> val ssc = new StreamingContext(sparkConf, Seconds(2))
>
> ssc.checkpoint("checkpoint")
>
>
>
> And the twitter does
>
>
>
> /** Returns the HDFS URL */
> def getCheckpointDirectory(): String = {
> try {
> val name : String = Seq("bash", "-c", "curl -s
> http://169.254.169.254/latest/meta-data/hostname";) !! ;
> println("Hostname = " + name)
> "hdfs://" + name.trim + ":9000/checkpoint/"
> } catch {
> case e: Exception => {
> "./checkpoint/"
> }
> }
>
>
>
> I need to change one of these.
>
>
>
> Actually a better alternative would be that each application has its own
> checkpoint?
>
>
>
> THanks
>
>
>
>
>
>
> Dr Mich Talebzadeh
>
>
>
> LinkedIn
> *https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>
>
>
> http://talebzadehmich.wordpress.com
>
>
>
>
>
> On 3 June 2016 at 21:23, David Newberger <[email protected]>
> wrote:
>
> I was going to ask if you had 2 jobs running. If the checkpointing for
> both are setup to look at the same location I could see an error like this
> happening. Do both spark jobs have a reference to a checkpointing dir?
>
>
>
> *David Newberger*
>
>
>
> *From:* Mich Talebzadeh [mailto:[email protected]]
> *Sent:* Friday, June 3, 2016 3:20 PM
> *To:* user @spark
> *Subject:* Re: Twitter streaming error : No lease on
> /user/hduser/checkpoint/temp (inode 806125): File does not exist.
>
>
>
> OK
>
>
>
> I was running two spark streaming jobs, one using streaming data from
> Kafka and another from twitter in local mode on the same node.
>
>
>
> It is possible that the directory /user/hduser/checkpoint/temp is shared
> by both spark streaming jobs
>
>
>
> any experience on this please?
>
>
>
> Thanks
>
>
> Dr Mich Talebzadeh
>
>
>
> LinkedIn
> *https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>
>
>
> http://talebzadehmich.wordpress.com
>
>
>
>
>
> On 3 June 2016 at 20:48, Mich Talebzadeh <[email protected]>
> wrote:
>
> Hi,
>
>
>
> Just started seeing these errors:
>
>
>
> 16/06/03 20:30:01 ERROR DFSClient: Failed to close inode 806125
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException):
> No lease on /user/hduser/checkpoint/temp (inode 806125): File does not
> exist. [Lease. Holder: DFSClient_NONMAPREDUCE_-907736468_1,
> pendingcreates: 1]
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:3516)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.analyzeFileState(FSNamesystem.java:3313)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3169)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:641)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:482)
> at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:619)
>
>
>
>
> Sounds like a connection is left open but cannot establish why!
>
>
>
> Thanks
>
>
> Dr Mich Talebzadeh
>
>
>
> LinkedIn
> *https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>
>
>
> http://talebzadehmich.wordpress.com
>
>
>
>
>
>
>
