How many rows are you scanning? The code where you are iterating
through "..." is also relevant, can you post it? And it would be
helpful if you could post more of the regionserver log file.
Also, which version are you running?
Zheng Lv wrote:
Hello Everyone,
I got some exceptions when I run the following code:
HBaseConfiguration config = new HBaseConfiguration();
HTable table = null;
ResultScanner scanner = null;
try {
table = new HTable(config, tableName);
Scan s = new Scan();
s.addFamily(Bytes.toBytes(ColumnFamily));
scanner = table.getScanner(s);
... ...
And the exceptions are:
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /192.168.33.6:60020 failed on local exception:
java.io.EOFException
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:994)
at
org.apache.hadoop.hbase.client.HTable$ClientScanner.nextScanner(HTable.java:1878)
at
org.apache.hadoop.hbase.client.HTable$ClientScanner.initialize(HTable.java:1824)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:370)
at hbasetest.HbaseScannerTest.scan(HbaseScannerTest.java:33)
at hbasetest.HbaseScannerTest.main(HbaseScannerTest.java:70)
And the exceptions on 192.168.33.6 are:
org.apache.hadoop.hbase.UnknownScannerException: Name: -1
at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1905)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:650)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:913)
2009-09-17 16:51:20,958 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
handler 1 on 60020, call next(-1, 1) from 192.168.33.7:54782: error:
org.apache.hadoop.hbase.UnknownScannerException: Name: -1
org.apache.hadoop.hbase.UnknownScannerException: Name: -1
at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1905)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:650)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:913)
2009-09-17 16:58:53,128 INFO
org.apache.hadoop.hbase.regionserver.HRegionServer: compactions no longer
limited
2009-09-17 17:29:51,130 ERROR
org.apache.hadoop.hbase.regionserver.HRegionServer:
org.apache.hadoop.hbase.UnknownScannerException: Name: -1
at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1905)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:650)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:913)
2009-09-17 17:29:51,134 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
handler 5 on 60020, call next(-1, 1) from 192.168.33.7:57936: error:
org.apache.hadoop.hbase.UnknownScannerException: Name: -1
org.apache.hadoop.hbase.UnknownScannerException: Name: -1
at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1905)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:650)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:913)
I think my codes are really simple, can you tell why these exception
were thrown?
Thanks a lot,
LvZheng
