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From Ted Yu <yuzhih...@gmail.com>
Subject Re: How to get useful info from Client exceptions
Date Tue, 23 May 2017 22:49:27 GMT
The exception is composed this way (see AsyncProcess):

      return new RetriesExhaustedWithDetailsException(new
ArrayList<Throwable>(throwables),
          new ArrayList<Row>(actions), new ArrayList<String>(addresses));

In your case there were 10456 UnknownHostException's.

Was there any other clue in client side log ?
I think one improvement we can do is selectively logging which host(s) was
involved in the UnknownHostException's.

BTW was hbase-site.xml on the classpath of your client ?

On Tue, May 23, 2017 at 3:28 PM, jeff saremi <jeffsaremi@hotmail.com> wrote:

> We get errors like below which are not helping at all.
>
> For instance in this case we have no clue what server/region it is talking
> about
>
> Is there a setting we missed or somehow we could augment this information
> to help us? We're using hbase 1.2.5
>
>
> Failed 10456 actions: UnknownHostException: 10456 times,
> Stack Trace: org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException:
> Failed 10456 actions: UnknownHostException: 10456 times,
>         at org.apache.hadoop.hbase.client.AsyncProcess$
> BatchErrors.makeException(AsyncProcess.java:258)
>         at org.apache.hadoop.hbase.client.AsyncProcess$
> BatchErrors.access$2000(AsyncProcess.java:238)
>         at org.apache.hadoop.hbase.client.AsyncProcess.
> waitForAllPreviousOpsAndReset(AsyncProcess.java:1817)
>         at org.apache.hadoop.hbase.client.BufferedMutatorImpl.
> backgroundFlushCommits(BufferedMutatorImpl.java:240)
>         at org.apache.hadoop.hbase.client.BufferedMutatorImpl.
> mutate(BufferedMutatorImpl.java:146)
>         at org.apache.hadoop.hbase.client.HTable.put(HTable.java:1028)
>
> thanks
>
>
>
>

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