I set this up with the application name as follows:
// Checkpoint directory
val hdfsDir = "hdfs://rhes564:9000/user/hduser/checkpoint/"+
*this.getClass.getSimpleName.trim*
And then use that directory for checkpointing
ssc.checkpoint(hdfsDir)
It creates it OK as follows with the application name as sub-directory
name. BTW anyone knows why it adds a "$" sign at the end of the class name?
hdfs dfs -ls /user/hduser/checkpoint/TwitterAnalyzer$
16/06/03 23:45:49 WARN util.NativeCodeLoader: Unable to load native-hadoop
library for your platform... using builtin-java classes where applicable
Found 13 items
drwxr-xr-x - hduser supergroup 0 2016-06-03 23:38
/user/hduser/checkpoint/TwitterAnalyzer$/9796158c-574a-466d-86a4-d02ed7dd22a0
-rw-r--r-- 2 hduser supergroup 5199 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993554000
-rw-r--r-- 2 hduser supergroup 5199 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993556000
-rw-r--r-- 2 hduser supergroup 5202 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993556000.bk
-rw-r--r-- 2 hduser supergroup 5199 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993558000
-rw-r--r-- 2 hduser supergroup 5202 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993558000.bk
-rw-r--r-- 2 hduser supergroup 5199 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993560000
-rw-r--r-- 2 hduser supergroup 5202 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993560000.bk
-rw-r--r-- 2 hduser supergroup 5199 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993562000
-rw-r--r-- 2 hduser supergroup 5202 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993562000.bk
-rw-r--r-- 2 hduser supergroup 5202 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/checkpoint-1464993564000
drwxr-xr-x - hduser supergroup 0 2016-06-03 23:38
/user/hduser/checkpoint/TwitterAnalyzer$/receivedBlockMetadata
-rw-r--r-- 2 hduser supergroup 5199 2016-06-03 23:39
/user/hduser/checkpoint/TwitterAnalyzer$/temp
It works fine.
HTH
Dr Mich Talebzadeh
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http://talebzadehmich.wordpress.com
On 3 June 2016 at 22:06, Mich Talebzadeh <mich.talebza...@gmail.com> wrote:
> sure I am trying to use
>
> SparkContext.setCheckpointDir(directory: String)
>
> to set it up.
>
> I agree that once one start creating subdirectory
> like "~/checkpoints/${APPLICATION_NAME}/${USERNAME}!" it becomes a bit messy
>
> cheers
>
>
> Dr Mich Talebzadeh
>
>
>
> 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 21:52, David Newberger <david.newber...@wandcorp.com>
> 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:mich.talebza...@gmail.com]
>> *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 <david.newber...@wandcorp.com>
>> 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:mich.talebza...@gmail.com]
>> *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 <mich.talebza...@gmail.com>
>> 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
>>
>>
>>
>>
>>
>>
>>
>>
>
