Examples of com.datastax.driver.core.exceptions.NoHostAvailableException

Package com.datastax.driver.core.exceptions

Examples of com.datastax.driver.core.exceptions.NoHostAvailableException

com.datastax.driver.core.exceptions.NoHostAvailableException
Exception thrown when a query cannot be performed because no host are available. This exception is thrown if
- either there is no host live in the cluster at the moment of the query
- all host that have been tried have failed due to a connection problem
For debugging purpose, the list of hosts that have been tried along with the failure cause can be retrieved using the {@link #errors} method.

            if (host != null)
                errors = logError(host, new DriverException("Connection thread interrupted"), errors, iter);
            while (iter.hasNext())
                errors = logError(iter.next(), new DriverException("Connection thread interrupted"), errors, iter);
        }
        throw new NoHostAvailableException(errors == null ? Collections.<InetSocketAddress, Throwable>emptyMap() : errors);
    }

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                Host host = queryPlan.next();
                logger.trace("Querying node {}", host);
                if (query(host))
                    return;
            }
            setFinalException(null, new NoHostAvailableException(errors == null ? Collections.<InetSocketAddress, Throwable>emptyMap() : errors));
        } catch (Exception e) {
            // Shouldn't happen really, but if ever the loadbalancing policy returned iterator throws, we don't want to block.
            setFinalException(null, new DriverInternalError("An unexpected error happened while sending requests", e));
        }
    }

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            if (host != null)
                errors = logError(host, "Connection thread interrupted", errors, iter);
            while (iter.hasNext())
                errors = logError(iter.next(), "Connection thread interrupted", errors, iter);
        }
        throw new NoHostAvailableException(errors == null ? Collections.<InetAddress, String>emptyMap() : errors);
    }

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            if (host != null)
                errors = logError(host, "Connection thread interrupted", errors, iter);
            while (iter.hasNext())
                errors = logError(iter.next(), "Connection thread interrupted", errors, iter);
        }
        throw new NoHostAvailableException(errors == null ? Collections.<InetAddress, String>emptyMap() : errors);
    }

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            if (host != null)
                errors = logError(host, new DriverException("Connection thread interrupted"), errors, iter);
            while (iter.hasNext())
                errors = logError(iter.next(), new DriverException("Connection thread interrupted"), errors, iter);
        }
        throw new NoHostAvailableException(errors == null ? Collections.<InetSocketAddress, Throwable>emptyMap() : errors);
    }

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                Host host = queryPlan.next();
                logger.trace("Querying node {}", host);
                if (query(host))
                    return;
            }
            setFinalException(null, new NoHostAvailableException(errors == null ? Collections.<InetAddress, String>emptyMap() : errors));
        } catch (Exception e) {
            // Shouldn't happen really, but if ever the loadbalancing policy returned iterator throws, we don't want to block.
            setFinalException(null, new DriverInternalError("An unexpected error happened while sending requests", e));
        }
    }

View Full Code Here

            if (host != null)
                errors = logError(host, new DriverException("Connection thread interrupted"), errors, iter);
            while (iter.hasNext())
                errors = logError(iter.next(), new DriverException("Connection thread interrupted"), errors, iter);
        }
        throw new NoHostAvailableException(errors == null ? Collections.<InetSocketAddress, Throwable>emptyMap() : errors);
    }

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            if (host != null)
                errors = logError(host, new DriverException("Connection thread interrupted"), errors, iter);
            while (iter.hasNext())
                errors = logError(iter.next(), new DriverException("Connection thread interrupted"), errors, iter);
        }
        throw new NoHostAvailableException(errors == null ? Collections.<InetSocketAddress, Throwable>emptyMap() : errors);
    }

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            if (host != null)
                errors = logError(host, "Connection thread interrupted", errors, iter);
            while (iter.hasNext())
                errors = logError(iter.next(), "Connection thread interrupted", errors, iter);
        }
        throw new NoHostAvailableException(errors == null ? Collections.<InetAddress, String>emptyMap() : errors);
    }

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        }
    }


    public <T> T executeWithSession(String schemaName, SessionCallable<T> sessionCallable)
    {
        NoHostAvailableException lastException = null;
        for (int i = 0; i < 2; i++) {
            Session session = getSession(schemaName);
            try {
                return sessionCallable.executeWithSession(session);
            }

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