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From Abhinav Solan <abhinav.so...@gmail.com>
Subject Re: NoHostAvailableException coming up on our server
Date Tue, 12 Jul 2016 21:57:19 GMT
I am using 3.0.0 version over apache-cassandra-3.3

On Tue, Jul 12, 2016 at 2:37 PM Riccardo Ferrari <ferrarir@gmail.com> wrote:

> What driver version are you using?
>
> You can look at the LoggingRetryPolicy to have more meaningful messages in
> your logs.
>
> best,
>
> On Tue, Jul 12, 2016 at 9:02 PM, Abhinav Solan <abhinav.solan@gmail.com>
> wrote:
>
>> Thanks, Johnny
>> Actually, they were running .. it went through a series of read and
>> writes .. and recovered after the error.
>> Is there any settings I can specify in preparing the Session at java
>> client driver level, here are my current settings -
>>
>> PoolingOptions poolingOptions = new PoolingOptions()
>>          .setConnectionsPerHost(HostDistance.LOCAL, 20, 20)
>>          .setMaxRequestsPerConnection(HostDistance.LOCAL, 128)
>>          .setNewConnectionThreshold(HostDistance.LOCAL, 100);
>>
>>  Cluster.Builder builder = Cluster.builder()
>>          .addContactPoints(cp)
>>          .withPoolingOptions(poolingOptions)
>>          .withProtocolVersion(ProtocolVersion.NEWEST_SUPPORTED)
>>          .withPort(port);
>>
>>
>>
>> On Tue, Jul 12, 2016 at 11:47 AM Johnny Miller <johnny.p.miller@gmail.com>
>> wrote:
>>
>>> Abhinav - your getting that as the driver isn’t finding any hosts up for
>>> your query. You probably need to check if all the nodes in your cluster are
>>> running.
>>>
>>> See:
>>> http://docs.datastax.com/en/drivers/java/3.0/com/datastax/driver/core/exceptions/NoHostAvailableException.html
>>>
>>>
>>> Johnny
>>>
>>> On 12 Jul 2016, at 18:46, Abhinav Solan <abhinav.solan@gmail.com> wrote:
>>>
>>> Hi Everyone,
>>>
>>> I am getting this error on our server, it comes and goes seems the
>>> connection drops a comes back after a while -
>>>
>>> Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All
host(s) tried for query failed (tried: ****************:9042 (com.datastax.driver.core.exceptions.ConnectionException:
[****************] Pool is CLOSING))
>>> 	at com.datastax.driver.core.RequestHandler.reportNoMoreHosts(RequestHandler.java:218)
>>> 	at com.datastax.driver.core.RequestHandler.access$1000(RequestHandler.java:43)
>>> 	at com.datastax.driver.core.RequestHandler$SpeculativeExecution.sendRequest(RequestHandler.java:284)
>>> 	at com.datastax.driver.core.RequestHandler.startNewExecution(RequestHandler.java:115)
>>> 	at com.datastax.driver.core.RequestHandler.sendRequest(RequestHandler.java:91)
>>> 	at com.datastax.driver.core.SessionManager.executeAsync(SessionManager.java:129)
>>>
>>> Can anyone suggest me what can be done to handle this error ?
>>>
>>>
>>> Thanks,
>>>
>>> Abhinav
>>>
>>>
>>>
>

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