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.so...@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.mil...@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.so...@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 >> >> >>
