I'm currently validating the new 0.90.0 RC3 with the hbase-trx layer and our
own application.
All seems well so far except for the fact that I now find that HBase doesn't
adapt if I try to run the same data on different machines.
e.g.
1) I work from home and generated our seeded test data.
2) Run the test suite and all tests pass
3) I go to the office and re-run the tests.
Result: HMaster fails because the .ROOT data has the wrong ip address for
locating the .META. At least that is my understanding from the stacktrace
below. Note that the 192.168.1.102 IP address in that trace is the IP from my
home network and is incorrect.
This wasn't an issue with previous versions of HBase as far as I've noticed.
And this seems to be a big data portability fail.
Surely the HMaster should be able to absorb stale metadata and wait for new
region-servers to check in.
Instead it just keels over and dies.
But before logging a case I wanted to know if there was something I'm obviously
missing or doing wrong.
The seeded test data is on HDFS.
Thoughts?
[13/01/11 10:58:42] 5939 [ main] INFO
ion.service.HBaseRegionService - troove> Starting region server thread.
[13/01/11 11:00:15] 98699 [ HMaster] FATAL
he.hadoop.hbase.master.HMaster - Unhandled exception. Starting shutdown.
java.net.SocketTimeoutException: 20000 millis timeout while waiting for channel
to be ready for connect. ch :
java.nio.channels.SocketChannel[connection-pending
remote=192.168.1.102/192.168.1.102:60020]
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:213)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404)
at
org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:311)
at
org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:865)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:732)
at
org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:258)
at $Proxy15.getProtocolVersion(Unknown Source)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:419)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:393)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:444)
at org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:349)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:954)
at
org.apache.hadoop.hbase.catalog.CatalogTracker.getCachedConnection(CatalogTracker.java:384)
at
org.apache.hadoop.hbase.catalog.CatalogTracker.getMetaServerConnection(CatalogTracker.java:283)
at
org.apache.hadoop.hbase.catalog.CatalogTracker.verifyMetaRegionLocation(CatalogTracker.java:478)
at
org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:435)
at
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:382)
at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:277)
at java.lang.Thread.run(Thread.java:680)
James Kennedy
Troove Inc.
