Sir,
How can i get all the keys from aerospike namespace like i can get keys from a map using map.keyset . I went through this link GitHub - helipilot50/store-primary-key .I tried writing a similar code to this one.I wrote the code with client.xpolicy=true
but i am still getting null when i display the key in scanCallback funtion.
here is my code to write a record(any help would be appriciated):
def writeToAerospike():Boolean = {
val host:Host = new Host("xx.xxx.xxx.xx", 3000)
val client = new AerospikeClient(new ClientPolicy,host)
client.writePolicyDefault.sendKey = true;
client.readPolicyDefault.sendKey = true;
client.scanPolicyDefault.sendKey = true;
val policy = new WritePolicy();
policy.sendKey = true;
policy.timeout = 500;
if(client.isConnected()){
println("connection to aerospike client sucessful")
client.put(policy,new Key("test", "testSet", "1"),new Bin("name", "john"))
//verify if the record is entered correctly
println(client.get(policy,new Key("test", "testing", "1")).getValue("name"))
client.close()
return true
}
return false }
I am using the code from this example to scan the records: http://www.aerospike.com/docs/client/java/usage/scan/scan.html
class ScanParallelTest extends ScanCallback {
private var recordCount: Int = _
def runTest() {
val client = new AerospikeClient("xxx.xx.xxx.xx", 3000)
try {
val policy = new ScanPolicy()
policy.concurrentNodes = true
policy.priority = Priority.LOW
policy.includeBinData = true
client.scanAll(policy, "test", "testSet", this)
println("Records " + recordCount)
} finally {
client.close()
}
}
def scanCallback(key: Key, record: Record) {
recordCount += 1
println("Records " + recordCount )
println ("key=" + " "+key.userKey.toString() +" and "+" record: "+" "+ record.bins)
}
}
Here is the error I am getting:
com.aerospike.client.AerospikeException: java.lang.NullPointerException
at com.aerospike.client.command.ScanExecutor.scanParallel(ScanExecutor.java:66)
at com.aerospike.client.AerospikeClient.scanAll(AerospikeClient.java:551)
at aerospike.asd.ScanParallelTest.runTest(ScanParallelTest.scala:23)
at aerospike.asd.test$.main(test.scala:10)
at aerospike.asd.test.main(test.scala)
Caused by: java.lang.NullPointerException
at aerospike.asd.ScanParallelTest.scanCallback(ScanParallelTest.scala:35)
at com.aerospike.client.command.ScanCommand.parseRecordResults(ScanCommand.java:122)
at com.aerospike.client.command.MultiCommand.parseResult(MultiCommand.java:58)
at com.aerospike.client.command.SyncCommand.execute(SyncCommand.java:56)
at com.aerospike.client.command.ScanExecutor$ScanThread.run(ScanExecutor.java:134)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I am using Aerospike 3.1.7 library
. If i only write key.toString() instead of key.userKey.toString() i get an output like this: key= test:testSet:null:[B@7a7683b1 and record: {name=john}