Thanks for digging, Julian. Looks like we need to support BigDecimal in HbaseObjectWritable
Actually once a test is written for BigDecimalColumnInterpreter, it would become much easier for anyone to debug this issue. On Wed, Sep 12, 2012 at 9:27 AM, Julian Wissmann <[email protected]>wrote: > Hi, > > so I'm slowly getting an overview of the code, here. I haven't really > understood the problem yet, though. > > DataInput and DataOutput cannot handle BigDecimal, which seems to be > somehwere close to the root cause of the problem. > The error is being triggered in HBaseServer on line > 1642 param.readFields(dis); > which calls org.apache.hadoop.io.writable, which implements write and > readFields(), and I assume is being implemented by > HbaseObjectWritable#readFields. > In HbaseObjectWritable#readObject DataInput in then gets checked for being > a primitive data type and read accordingly. > > Now if I interpret Bytes#valueOf() correctly, it just takes a BigDecimal > value and converts _just_ the value to byte[] and not the whole object. So > what readObject finds here, should be interpreted as byte[] and happily > passed on. The first method, that should even care about parsing this to > BigDecimal would then be BigDecimalColumnInterpreter#getValue() > > To test this, I decided to overwrite write and readFields, as I inherit > them from Exec, anyway, however I have no understanding of how these > methods work. > I put in a few printlns to get a feeling for it, but turns out it is never > even beling called, at all. > > > 2012/9/10 anil gupta <[email protected]> > > > Hi Julian, > > > > I am using only cdh4 libraries. I use the jars present under hadoop and > > hbase installed dir. In my last email i gave you some more pointers. Try > to > > follow them and see what happens. > > If then also it doesn't works for you, then i will try to write an > utility > > to test BigDecimalColumnInterpreter on your setup also. > > > > Thanks, > > Anil > > > > On Mon, Sep 10, 2012 at 9:36 AM, Julian Wissmann > > <[email protected]>wrote: > > > > > Hi, > > > > > > I haven't really gotten to working on this, since last wednesday. > > > Checked readFields() and write() today, but don't really see, why I > would > > > need to reimplement those. Admittedly I'm not that into the whole Hbase > > > codebase, yet, so there is a good chance I'm missing something, here. > > > > > > Also, Anil, what hbase library are you coding this against? > > > It does seem like madness, that even though, we're both using this > > > identically it does not work for me. > > > > > > Cheers, > > > > > > Julian > > > > > > 2012/9/6 anil gupta <[email protected]> > > > > > > > Yes, we do. :) > > > > Let me know the outcome. If you look at the BD ColumnInterpreter, > > > getValue > > > > method is converting the byte array into BigDecimal. So you should > not > > > have > > > > any problem. The BD ColumnInterpreter is pretty similar to > > > > LongColumnInterpreter. > > > > > > > > Here is the code snippet for getValue() method which will convert > > Byte[] > > > to > > > > BigDecimal: > > > > > > > > @Override > > > > public BigDecimal getValue(byte[] paramArrayOfByte1, byte[] > > > > paramArrayOfByte2, > > > > KeyValue kv) throws IOException { > > > > if ((kv == null || kv.getValue() == null)) > > > > return null; > > > > return > Bytes.toBigDecimal(kv.getValue()); > > > > } > > > > > > > > Thanks, > > > > Anil > > > > > > > > > > > > On Thu, Sep 6, 2012 at 11:43 AM, Julian Wissmann > > > > <[email protected]>wrote: > > > > > > > > > 0.92.1 from cdh4. I assume we use the same thing. > > > > > > > > > > 2012/9/6 anil gupta <[email protected]> > > > > > > > > > > > I am using HBase0.92.1. Which version you are using? > > > > > > > > > > > > > > > > > > On Thu, Sep 6, 2012 at 10:19 AM, anil gupta < > [email protected] > > > > > > > > wrote: > > > > > > > > > > > > > Hi Julian, > > > > > > > > > > > > > > You need to add the column qualifier explicitly in the scanner. > > You > > > > > have > > > > > > > only added the column family in the scanner. > > > > > > > I am also assuming that you are writing a ByteArray of > BigDecimal > > > > > object > > > > > > > as value of these cells in HBase. Is that right? > > > > > > > > > > > > > > Thanks, > > > > > > > Anil > > > > > > > > > > > > > > > > > > > > > On Thu, Sep 6, 2012 at 2:28 AM, Julian Wissmann < > > > > > > [email protected]>wrote: > > > > > > > > > > > > > >> Hi, anil, > > > > > > >> > > > > > > >> I presume you mean something like this: > > > > > > >> Scan scan = new Scan(_start, _end); > > > > > > >> scan.addFamily(family.getBytes()); > > > > > > >> final ColumnInterpreter<BigDecimal, BigDecimal> ci = > new > > > > > > >> mypackage.BigDecimalColumnInterpreter(); > > > > > > >> AggregationClient ag = new org.apache.hadoop.hbase. > > > > > > >> client.coprocessor.AggregationClient(config); > > > > > > >> BigDecimal sum = ag.sum(Bytes.toBytes(tableName), new > > > > > > >> BigDecimalColumnInterpreter(), scan); > > > > > > >> > > > > > > >> > > > > > > >> When I call this,with the Endpoint in place and loaded as a > > jar, I > > > > get > > > > > > the > > > > > > >> above error. > > > > > > >> When I call it without the endpoint loaded as coprocessor, > > > though, I > > > > > get > > > > > > >> this: > > > > > > >> > > > > > > >> java.util.concurrent.ExecutionException: > > > > > > >> org.apache.hadoop.hbase.client.RetriesExhaustedException: > Failed > > > > after > > > > > > >> attempts=10, exceptions: > > > > > > >> Thu Sep 06 11:07:39 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:40 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:41 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:42 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:44 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:46 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:50 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:54 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:08:02 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:08:18 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> > > > > > > >> at > > > > java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252) > > > > > > >> at java.util.concurrent.FutureTask.get(FutureTask.java:111) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processExecs(HConnectionManager.java:1434) > > > > > > >> at > > > > > > > > > org.apache.hadoop.hbase.client.HTable.coprocessorExec(HTable.java:1263) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient.sum(AggregationClient.java:259) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > helpers.HbaseReaderBigDecimal.getWeeksumSCAN(HbaseReaderBigDecimal.java:355) > > > > > > >> at > > > helpers.HbaseReaderBigDecimal.main(HbaseReaderBigDecimal.java:76) > > > > > > >> Caused by: > > > org.apache.hadoop.hbase.client.RetriesExhaustedException: > > > > > > >> Failed > > > > > > >> after attempts=10, exceptions: > > > > > > >> Thu Sep 06 11:07:39 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:40 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:41 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:42 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:44 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:46 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:50 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:07:54 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:08:02 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> Thu Sep 06 11:08:18 CEST 2012, > > > > > > >> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@7bd6747b, > > > > > > >> java.io.IOException: > > > > > > >> IPC server unable to read call parameters: Error in readFields > > > > > > >> > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.ServerCallable.withRetries(ServerCallable.java:183) > > > > > > >> at > > > > > > >> > > > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker.invoke(ExecRPCInvoker.java:79) > > > > > > >> at $Proxy7.getSum(Unknown Source) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient$4.call(AggregationClient.java:263) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient$4.call(AggregationClient.java:260) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$4.call(HConnectionManager.java:1422) > > > > > > >> at > > > > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) > > > > > > >> at java.util.concurrent.FutureTask.run(FutureTask.java:166) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > > > > > > >> at > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > > > > > > >> at java.lang.Thread.run(Thread.java:679) > > > > > > >> > > > > > > >> Interestingly, the RegionServer-log doesn't give me any > errors, > > > > here, > > > > > > just > > > > > > >> some info stuff, that suggests it was actually doing > something. > > > > > > >> Did you implement readFields() and write(), then as Ted > > suggested? > > > > > > >> > > > > > > >> > > > > > > >> 2012/9/5 anil gupta <[email protected]> > > > > > > >> > > > > > > >> > Hi Julian, > > > > > > >> > > > > > > > >> > Sorry for wrong reference to the aggregation client class in > > my > > > > > > previous > > > > > > >> > email. Here is the right > > > > > > >> > > > > > class:org.apache.hadoop.hbase.client.coprocessor.AggregationClient. > > > > > > >> > > > > > > > >> > HTH, > > > > > > >> > Anil > > > > > > >> > > > > > > > >> > On Wed, Sep 5, 2012 at 2:04 PM, anil gupta < > > > [email protected] > > > > > > > > > > > >> wrote: > > > > > > >> > > > > > > > >> > > Hi Julian, > > > > > > >> > > > > > > > > >> > > I have been running the same class on my distributed > cluster > > > for > > > > > > >> > > aggregation. It has been working fine. The only difference > > is > > > > > that i > > > > > > >> use > > > > > > >> > > the methods provided > > > > > incom.intuit.ihub.hbase.poc.aggregation.client. > > > > > > >> > > AggregationClient class. IMHO, you don't need to define an > > > > > Endpoint > > > > > > >> for > > > > > > >> > > using the BigDecimalColumnInterpreter. > > > > > > >> > > > > > > > > >> > > You need to use methods of AggregationClient: > > > > > > >> > > sum(Bytes.toBytes(tableName), ci, scan), avg(final byte[] > > > > > tableName, > > > > > > >> > final > > > > > > >> > > ColumnInterpreter<R, S> ci, Scan scan), etc. > > > > > > >> > > > > > > > > >> > > In the above method you just need to pass the > > > > > > >> > BigDecimalColumnInterpreter, > > > > > > >> > > Scan object and Byte Array of TableName. It should work. > Let > > > me > > > > > know > > > > > > >> if > > > > > > >> > it > > > > > > >> > > doesn't work this way.* > > > > > > >> > > * > > > > > > >> > > Thanks, > > > > > > >> > > Anil Gupta > > > > > > >> > > * > > > > > > >> > > * > > > > > > >> > > > > > > > > >> > > On Wed, Sep 5, 2012 at 1:30 PM, Julian Wissmann < > > > > > > >> > [email protected]>wrote: > > > > > > >> > > > > > > > > >> > >> Thank you! > > > > > > >> > >> So this looks like the missing link here. > > > > > > >> > >> I'll see if I can get it working, tomorrow morning. > > > > > > >> > >> > > > > > > >> > >> Cheers > > > > > > >> > >> > > > > > > >> > >> 2012/9/5 Ted Yu <[email protected]> > > > > > > >> > >> > > > > > > >> > >> > I added one review comment on > > > > > > >> > >> > HBASE-6669< > > > https://issues.apache.org/jira/browse/HBASE-6669> > > > > > > >> > >> > . > > > > > > >> > >> > > > > > > > >> > >> > Thanks Julian for reminding me. > > > > > > >> > >> > > > > > > > >> > >> > On Wed, Sep 5, 2012 at 12:49 PM, Julian Wissmann > > > > > > >> > >> > <[email protected]>wrote: > > > > > > >> > >> > > > > > > > >> > >> > > I get supplied with doubles from sensors, but in the > > end > > > I > > > > > > loose > > > > > > >> too > > > > > > >> > >> much > > > > > > >> > >> > > precision if I do my aggregations on double, > otherwise > > > I'd > > > > go > > > > > > for > > > > > > >> > it. > > > > > > >> > >> > > I use 0.92.1, from Cloudera CDH4. > > > > > > >> > >> > > I've done some initial testing with > > LongColumnInterpreter > > > > on > > > > > a > > > > > > >> > dataset > > > > > > >> > >> > that > > > > > > >> > >> > > I've generated, to do some testing and get accustomed > > to > > > > > stuff, > > > > > > >> but > > > > > > >> > >> that > > > > > > >> > >> > > worked like a charm after some initial stupidity on > my > > > > side. > > > > > > >> > >> > > So now I'm trying to do some testing with the real > > data, > > > > > which > > > > > > >> comes > > > > > > >> > >> in > > > > > > >> > >> > as > > > > > > >> > >> > > double and gets parsed to BigDecimal before writing. > > > > > > >> > >> > > > > > > > > >> > >> > > 2012/9/5 Ted Yu <[email protected]> > > > > > > >> > >> > > > > > > > > >> > >> > > > And your HBase version is ? > > > > > > >> > >> > > > > > > > > > >> > >> > > > Since you use Double.parseDouble(), looks like it > > would > > > > be > > > > > > more > > > > > > >> > >> > efficient > > > > > > >> > >> > > > to develop DoubleColumnInterpreter. > > > > > > >> > >> > > > > > > > > > >> > >> > > > On Wed, Sep 5, 2012 at 12:07 PM, Julian Wissmann > > > > > > >> > >> > > > <[email protected]>wrote: > > > > > > >> > >> > > > > > > > > > >> > >> > > > > Hi, > > > > > > >> > >> > > > > the schema looks like this: > > > > > > >> > >> > > > > RowKey: id,timerange_timestamp,offset (String) > > > > > > >> > >> > > > > Qualifier: Offset (long) > > > > > > >> > >> > > > > Timestamp: timestamp (long) > > > > > > >> > >> > > > > Value:number (BigDecimal) > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > Or as code when I read data from csv:byte[] > value = > > > > > > >> > >> > > > > > > > > > > >> > Bytes.toBytes(BigDecimal.valueOf(Double.parseDouble(cData[2]))); > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > Cheers, > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > Julian > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > 2012/9/5 Ted Yu <[email protected]> > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > You haven't told us the schema of your table > yet. > > > > > > >> > >> > > > > > Your table should have column whose value can > be > > > > > > >> interpreted > > > > > > >> > by > > > > > > >> > >> > > > > > BigDecimalColumnInterpreter. > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > Cheers > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > On Wed, Sep 5, 2012 at 9:17 AM, Julian > Wissmann < > > > > > > >> > >> > > > > [email protected] > > > > > > >> > >> > > > > > >wrote: > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > Hi, > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > I am currently experimenting with the > > > > > > >> > >> BigDecimalColumnInterpreter > > > > > > >> > >> > > > from > > > > > > >> > >> > > > > > > > > https://issues.apache.org/jira/browse/HBASE-6669 > > > . > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > I was thinking the best way for me to work > with > > > it > > > > > > would > > > > > > >> be > > > > > > >> > to > > > > > > >> > >> > use > > > > > > >> > >> > > > the > > > > > > >> > >> > > > > > Java > > > > > > >> > >> > > > > > > class and just use that as is. > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > Imported it into my project and tried to work > > > with > > > > it > > > > > > as > > > > > > >> is, > > > > > > >> > >> by > > > > > > >> > >> > > just > > > > > > >> > >> > > > > > > instantiating the ColumnInterpreter as > > > > > > >> > >> > BigDecimalColumnInterpreter. > > > > > > >> > >> > > > > Okay, > > > > > > >> > >> > > > > > > threw errors and also complained about not > > > knowing > > > > > > where > > > > > > >> to > > > > > > >> > >> find > > > > > > >> > >> > > > such a > > > > > > >> > >> > > > > > > class. > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > So I did some reading and found out, that I'd > > > need > > > > to > > > > > > >> have > > > > > > >> > an > > > > > > >> > >> > > > Endpoint > > > > > > >> > >> > > > > > for > > > > > > >> > >> > > > > > > it. So I imported AggregateImplementation and > > > > > > >> > >> AggregateProtocol > > > > > > >> > >> > > into > > > > > > >> > >> > > > my > > > > > > >> > >> > > > > > > workspace, renamed them, and refactored them > > > where > > > > > > >> necessary > > > > > > >> > >> to > > > > > > >> > >> > > take > > > > > > >> > >> > > > > > > BigDecimal. Re-exported the jar, then and had > > > > another > > > > > > >> try. > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > So when I call: > > > > > > >> > >> > > > > > > ------ > > > > > > >> > >> > > > > > > final Scan scan = new Scan((metricID + "," + > > > > > > >> > >> > > > > basetime_begin).getBytes(), > > > > > > >> > >> > > > > > > (metricID + "," + basetime_end).getBytes()); > > > > > > >> > >> > > > > > > scan.addFamily(family.getBytes()); > > > > > > >> > >> > > > > > > final ColumnInterpreter<BigDecimal, > BigDecimal> > > > ci > > > > = > > > > > > new > > > > > > >> > >> > > > > > > BigDecimalColumnInterpreter(); > > > > > > >> > >> > > > > > > Map<byte[], BigDecimal> results = > > > > > > >> > >> > > > > > > > table.coprocessorExec(BigDecimalProtocol.class, > > > > null, > > > > > > >> null, > > > > > > >> > >> > > > > > > new > > > > Batch.Call<BigDecimalProtocol,BigDecimal>() { > > > > > > >> > >> > > > > > > public BigDecimal > call(BigDecimalProtocol > > > > > > >> > >> instance)throws > > > > > > >> > >> > > > > > > IOException{ > > > > > > >> > >> > > > > > > return instance.getMax(ci, scan); > > > > > > >> > >> > > > > > > } > > > > > > >> > >> > > > > > > }); > > > > > > >> > >> > > > > > > ------ > > > > > > >> > >> > > > > > > I get errors in the log again, that it can't > > find > > > > > > >> > >> > > > > > > BigDecimalColumnInterpreter... okay, so I > tried > > > > > > >> > >> > > > > > > ------ > > > > > > >> > >> > > > > > > Scan scan = new Scan((metricID + "," + > > > > > > >> > >> > basetime_begin).getBytes(), > > > > > > >> > >> > > > > > > (metricID + "," + basetime_end).getBytes()); > > > > > > >> > >> > > > > > > scan.addFamily(family.getBytes()); > > > > > > >> > >> > > > > > > final ColumnInterpreter<BigDecimal, > BigDecimal> > > > ci > > > > = > > > > > > new > > > > > > >> > >> > > > > > > BigDecimalColumnInterpreter(); > > > > > > >> > >> > > > > > > AggregationClient ag = new > > > > AggregationClient(config); > > > > > > >> > >> > > > > > > BigDecimal max = > > ag.max(Bytes.toBytes(tableName), > > > > ci, > > > > > > >> scan); > > > > > > >> > >> > > > > > > ------ > > > > > > >> > >> > > > > > > I don't get errors recored in the log > anymore, > > > but > > > > a > > > > > > >> load of > > > > > > >> > >> Java > > > > > > >> > >> > > > error > > > > > > >> > >> > > > > > > output: > > > > > > >> > >> > > > > > > ------ > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > java.util.concurrent.ExecutionException: > > > > > > >> > >> > > > > > > > > > > > > org.apache.hadoop.hbase.client.RetriesExhaustedException: > > > > > > >> > >> Failed > > > > > > >> > >> > > > after > > > > > > >> > >> > > > > > > attempts=10, exceptions: > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:43 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:44 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:45 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:46 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:49 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:51 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:55 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:59 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:14:07 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:14:23 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > >> > > java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252) > > > > > > >> > >> > > > > > > at > > > > > > >> java.util.concurrent.FutureTask.get(FutureTask.java:111) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processExecs(HConnectionManager.java:1434) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > >> > > > > > > > org.apache.hadoop.hbase.client.HTable.coprocessorExec(HTable.java:1263) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient.sum(AggregationClient.java:259) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > helpers.HbaseReaderBigDecimal.getWeeksumSCAN(HbaseReaderBigDecimal.java:360) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > helpers.HbaseReaderBigDecimal.main(HbaseReaderBigDecimal.java:81) > > > > > > >> > >> > > > > > > Caused by: > > > > > > >> > >> > > > > org.apache.hadoop.hbase.client.RetriesExhaustedException: > > > > > > >> > >> > > > > > Failed > > > > > > >> > >> > > > > > > after attempts=10, exceptions: > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:43 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:44 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:45 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:46 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:49 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:51 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:55 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:59 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:14:07 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:14:23 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.ServerCallable.withRetries(ServerCallable.java:183) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker.invoke(ExecRPCInvoker.java:79) > > > > > > >> > >> > > > > > > at $Proxy7.getSum(Unknown Source) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient$4.call(AggregationClient.java:263) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient$4.call(AggregationClient.java:260) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$4.call(HConnectionManager.java:1422) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > >> > > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) > > > > > > >> > >> > > > > > > at > > > > > > >> java.util.concurrent.FutureTask.run(FutureTask.java:166) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > > > > > > >> > >> > > > > > > at java.lang.Thread.run(Thread.java:679) > > > > > > >> > >> > > > > > > > > > > > > org.apache.hadoop.hbase.client.RetriesExhaustedException: > > > > > > >> > >> Failed > > > > > > >> > >> > > > after > > > > > > >> > >> > > > > > > attempts=10, exceptions: > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:43 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:44 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:45 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:46 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:49 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:51 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:55 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:13:59 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:14:07 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > Wed Sep 05 18:14:23 CEST 2012, > > > > > > >> > >> > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@50502819 > > > > > , > > > > > > >> > >> > > > > > > java.io.IOException: > > > > > > >> > >> > > > > > > IPC server unable to read call parameters: > > Error > > > in > > > > > > >> > readFields > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.ServerCallable.withRetries(ServerCallable.java:183) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > org.apache.hadoop.hbase.ipc.ExecRPCInvoker.invoke(ExecRPCInvoker.java:79) > > > > > > >> > >> > > > > > > at $Proxy7.getSum(Unknown Source) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient$4.call(AggregationClient.java:263) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.coprocessor.AggregationClient$4.call(AggregationClient.java:260) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$4.call(HConnectionManager.java:1422) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > >> > > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) > > > > > > >> > >> > > > > > > at > > > > > > >> java.util.concurrent.FutureTask.run(FutureTask.java:166) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > > > > > > >> > >> > > > > > > at > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > > > > > > >> > >> > > > > > > at java.lang.Thread.run(Thread.java:679) > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > ------ > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > I'm not really sure about what I'm doing > wrong. > > > > Does > > > > > > >> anyone > > > > > > >> > >> have > > > > > > >> > >> > a > > > > > > >> > >> > > > hint > > > > > > >> > >> > > > > > > towards the right direction? > > > > > > >> > >> > > > > > > > > > > > > >> > >> > > > > > > > > > > > >> > >> > > > > > > > > > > >> > >> > > > > > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > > > > > > > > >> > > > > > > > > >> > > > > > > > > >> > > -- > > > > > > >> > > Thanks & Regards, > > > > > > >> > > Anil Gupta > > > > > > >> > > > > > > > > >> > > > > > > > >> > > > > > > > >> > > > > > > > >> > -- > > > > > > >> > Thanks & Regards, > > > > > > >> > Anil Gupta > > > > > > >> > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > Thanks & Regards, > > > > > > > Anil Gupta > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > Thanks & Regards, > > > > > > Anil Gupta > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > Thanks & Regards, > > > > Anil Gupta > > > > > > > > > > > > > > > -- > > Thanks & Regards, > > Anil Gupta > > >
