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From Kai Wang <dep...@gmail.com>
Subject Re: Can't save Opscenter Dashboard
Date Thu, 05 Nov 2015 15:02:01 GMT
It happens again after I reboot another node. This time I see errors in
agent.log. It seems to be related to the previous dead node.

  INFO [clojure-agent-send-off-pool-2] 2015-11-05 09:48:41,602 Attempting
to load stored metric values.
 ERROR [clojure-agent-send-off-pool-2] 2015-11-05 09:48:41,613 There was an
error when attempting to load stored rollups.
 com.datastax.driver.core.exceptions.DriverInternalError: Unexpected error
while processing response from /x.x.x.x:9042
    at
com.datastax.driver.core.exceptions.DriverInternalError.copy(DriverInternalError.java:42)
    at
com.datastax.driver.core.exceptions.DriverInternalError.copy(DriverInternalError.java:24)
...
Caused by: com.datastax.driver.core.exceptions.DriverInternalError:
Unexpected error while processing response from /x.x.x.x:9042
    at
com.datastax.driver.core.DefaultResultSetFuture.onSet(DefaultResultSetFuture.java:150)
    at
com.datastax.driver.core.RequestHandler.setFinalResult(RequestHandler.java:183)
    at
com.datastax.driver.core.RequestHandler.access$2300(RequestHandler.java:45)
...
Caused by: java.lang.IllegalStateException: Can't use this cluster instance
because it was previously closed
    at com.datastax.driver.core.Cluster.checkNotClosed(Cluster.java:493)
    at com.datastax.driver.core.Cluster.access$400(Cluster.java:61)
    at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1231)
...
INFO [clojure-agent-send-off-pool-1] 2015-11-05 09:48:41,618 Attempting to
load stored metric values.
 ERROR [clojure-agent-send-off-pool-1] 2015-11-05 09:48:41,622 There was an
error when attempting to load stored rollups.
 com.datastax.driver.core.exceptions.InvalidQueryException: Invalid null
value for partition key part key
    at
com.datastax.driver.core.exceptions.InvalidQueryException.copy(InvalidQueryException.java:35)
    at
com.datastax.driver.core.DefaultResultSetFuture.extractCauseFromExecutionException(DefaultResultSetFuture.java:291)


On Wed, Nov 4, 2015 at 8:43 PM, qihuang.zheng <qihuang.zheng@fraudmetrix.cn>
wrote:

> We have this problem with version 5.2.0.  so we decide to update to 5.2.2
>
> But this problem seems remain.  We solve this by totally delele relate
> agent file and process and restart. just like first time install.
>
>
> sudo kill -9 `ps -ef|grep datastax_agent_monitor | head -1 |awk '{print
> $2}'` && \
>
> sudo kill -9 `cat /var/run/datastax-agent/datastax-agent.pid` && \
>
> sudo rm -rf /var/lib/datastax-agent && \
>
> sudo rm -rf /usr/share/datastax-agent
>
> ------------------------------
> qihuang.zheng
>
>  原始邮件
> *发件人:* Kai Wang<depend@gmail.com>
> *收件人:* user<user@cassandra.apache.org>
> *发送时间:* 2015年11月5日(周四) 04:39
> *主题:* Can't save Opscenter Dashboard
>
> Hi,
>
> Today after one of the nodes is rebooted, OpsCenter dashboard doesn't save
> anymore. It starts with an empty dashboard with no widget or graph. If I
> add some graph/widget, they are being updated fine. But if I refresh the
> browser, the dashboard became empty again.
>
> Also there's no "DEFAULT" tab on the dashboard as the user guide shows. I
> am not sure if it was there before.
>

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