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From Marc Reichman <mreich...@pixelforensics.com>
Subject Re: remote accumulo instance issue
Date Wed, 08 May 2013 16:38:22 GMT
I can't find anything wrong with the networking. Here is the whole error
with stack trace:
2057 [main] WARN org.apache.accumulo.core.client.impl.ServerClient  -
Failed to find an available server in the list of servers:
[192.168.1.164:9997:9997 (120000), 192.168.1.192:9997:9997 (120000),
192.168.1.194:9997:9997 (120000), 192.168.1.162:9997:9997 (120000),
192.168.1.190:9997:9997 (120000), 192.168.1.166:9997:9997 (120000),
192.168.1.168:9997:9997 (120000), 192.168.1.196:9997:9997 (120000)]
Exception in thread "main" java.lang.IncompatibleClassChangeError:
Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at
org.apache.accumulo.core.client.impl.ServerClient.getConnection(ServerClient.java:146)
at
org.apache.accumulo.core.client.impl.ServerClient.getConnection(ServerClient.java:123)
at
org.apache.accumulo.core.client.impl.ServerClient.executeRaw(ServerClient.java:105)
at
org.apache.accumulo.core.client.impl.ServerClient.execute(ServerClient.java:71)
at
org.apache.accumulo.core.client.impl.ConnectorImpl.<init>(ConnectorImpl.java:75)
at
org.apache.accumulo.core.client.ZooKeeperInstance.getConnector(ZooKeeperInstance.java:218)
at
org.apache.accumulo.core.client.ZooKeeperInstance.getConnector(ZooKeeperInstance.java:206)

Running on JDK 1.6.0_27


On Wed, May 8, 2013 at 10:38 AM, Keith Turner <keith@deenlo.com> wrote:

>
>
>
> On Wed, May 8, 2013 at 11:09 AM, Marc Reichman <
> mreichman@pixelforensics.com> wrote:
>
>> I have seen this as ticket ACCUMULO-687 which has been marked resolved,
>> but I still see this issue.
>>
>> I am connecting to a remote accumulo instance to query and to launch
>> mapreduce jobs using AccumuloRowInputFormat, and I'm seeing an error like:
>>
>> 91 [main-SendThread(padres.home:2181)] INFO
>> org.apache.zookeeper.ClientCnxn  - Socket connection established to
>> padres.home/192.168.1.160:2181, initiating session
>> 166 [main-SendThread(padres.home:2181)] INFO
>> org.apache.zookeeper.ClientCnxn  - Session establishment complete on server
>> padres.home/192.168.1.160:2181, sessionid = 0x13e7b48f9d17af7,
>> negotiated timeout = 30000
>> 1889 [main] WARN org.apache.accumulo.core.client.impl.ServerClient  -
>> Failed to find an available server in the list of servers:
>> [192.168.1.164:9997:9997 (120000), 192.168.1.192:9997:9997 (120000),
>> 192.168.1.194:9997:9997 (120000), 192.168.1.162:9997:9997 (120000),
>> 192.168.1.190:9997:9997 (120000), 192.168.1.166:9997:9997 (120000),
>> 192.168.1.168:9997:9997 (120000), 192.168.1.196:9997:9997 (120000)]
>>
>> My zookeeper's "tservers" key looks like:
>> [zk: localhost:2181(CONNECTED) 1] ls
>> /accumulo/908a756e-1c81-4bea-a4de-675456499a10/tservers
>> [192.168.1.164:9997, 192.168.1.192:9997, 192.168.1.194:9997,
>> 192.168.1.162:9997, 192.168.1.190:9997, 192.168.1.166:9997,
>> 192.168.1.168:9997, 192.168.1.196:9997]
>>
>> My masters and slaves file look like:
>> [hadoop@padres conf]$ cat masters
>> 192.168.1.160
>> [hadoop@padres conf]$ cat slaves
>> 192.168.1.162
>> 192.168.1.164
>> 192.168.1.166
>> 192.168.1.168
>> 192.168.1.190
>> 192.168.1.192
>> 192.168.1.194
>> 192.168.1.196
>>
>> tracers, gc, and monitor are the same as masters.
>>
>> I have no issues executing on the master, but I would like to work from a
>> remote host. The remote host is on a VPN, and its default resolver is NOT
>> the resolver from the remote network. If I do reverse lookup over the VPN
>> *using* the remote resolver it shows proper hostnames.
>>
>> My concern is that something is causing the "host:port" entry plus the
>> port to come up with this concatenated view of host:port:port, which is
>> obviously not going to work.
>>
>
> The second port is nothing to worry about. Its created by concatenating
> what came from zookeeper with the default tserver port.  The location from
> zookeeper can contain a port.   If for some reason the location in
> zookeeper did not have a port, it would use the default.
>
> That second port should probably go away, its being added
> by vestigial code.  We always expect what comes from zookeeper to have port
> now.
>
>
>>
>> What else can I try? I previously had hostnames in the
>> masters/slaves/etc. files but now have the IPs. Should I re-init the
>> instance to see if it changes anything in zookeeper?
>>
>
>

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