When I try to write a simple table (simpleTable) to MapD, I get the following error:
java.sql.SQLException: Connection failed - org.apache.thrift.transport.TTransportException: java.net.ConnectException: Connection refused (Connection refused)
Here is my code:
%python
simpleTable.write.format("jdbc").option("url",
"jdbc:mapd:localhost:8000:mapd:http").option("driver",
JDBC_DRIVER).option("dbtable", "venues").option("user", "mapd").option("password", "<PasswordHere>").save()
Related
I have successfully generated the application using Jhipster (Angular, MySQL). As an admin, I have logged in and trying to create a new user but I am getting the below error.
2021-05-10 21:55:14.218 ERROR 29756 --- [ XNIO-1 task-2] com.kc.bsadhana.service.UserService : Exception in createUser() with cause = 'java.lang.RuntimeException: Connection refused' and exception = 'Connection refused; nested exception is java.lang.RuntimeException: Connection refused'
org.springframework.dao.DataAccessResourceFailureException: Connection refused; nested exception is java.lang.RuntimeException: Connection refused
at org.springframework.data.elasticsearch.core.ElasticsearchExceptionTranslator.translateExceptionIfPossible(ElasticsearchExceptionTranslator.java:75)
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.translateException(ElasticsearchRestTemplate.java:362)
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.execute(ElasticsearchRestTemplate.java:345)
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.doIndex(ElasticsearchRestTemplate.java:143)
...
Caused by: java.lang.RuntimeException: Connection refused
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.translateException(ElasticsearchRestTemplate.java:360)
... 198 common frames omitted
Caused by: java.net.ConnectException: Connection refused
at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:849)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:259)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:246)
at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1613)
at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1583)
at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1553)
at org.elasticsearch.client.RestHighLevelClient.index(RestHighLevelClient.java:970)
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.lambda$doIndex$0(ElasticsearchRestTemplate.java:143)
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.execute(ElasticsearchRestTemplate.java:343)
... 197 common frames omitted
Caused by: java.net.ConnectException: Connection refused
at java.base/sun.nio.ch.Net.pollConnect(Native Method)
at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvent(DefaultConnectingIOReactor.java:174)
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:148)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:351)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221)
at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)
... 1 common frames omitted
2021-05-10 21:55:14.238 ERROR 29756 --- [ XNIO-1 task-2] com.kc.bsadhana.web.rest.UserResource : Exception in createUser() with cause = 'java.lang.RuntimeException: Connection refused' and exception = 'Connection refused; nested exception is java.lang.RuntimeException: Connection refused'
org.springframework.dao.DataAccessResourceFailureException: Connection refused; nested exception is java.lang.RuntimeException: Connection refused
In application-dev.yml file I have entered the database credentials :
datasource:
type: com.zaxxer.hikari.HikariDataSource
url: jdbc:mysql://localhost:3306/bsadhana?useUnicode=true&characterEncoding=utf8&useSSL=false&useLegacyDatetimeCode=false&serverTimezone=UTC&createDatabaseIfNotExist=true
username: root
password: rxxxx!
hikari:
Even the jhipster related tables were created in my database. But when I am trying to create a new user it is throwing the above-reported error. is there anywhere else I need to enter these credentials?
The error says your app cannot connect to your Elasticsearch instance, you should make sure you started it with following command as explained in the doc:
docker-compose -f src/main/docker/elasticsearch.yml up
I tried every possible answer online! It was running sometime back.
OS: Ubuntu 16.04
Error:
Warning: checkError(): java.lang.RuntimeException:
java.net.ConnectException: Connection refused (Connection refused) at server.sl:450
I'm trying to connect to my database on mlab through mongodb.
I have cd to mongodb directory, then I run the code and all I get is this error. If I try to connect over localhost it's fine but on real server I get the error below:
./bin/mongo ds151508.mlab.com:51508/dansql -u xx -p xxx
MongoDB shell version v3.6.3
connecting to: mongodb://ds151508.mlab.com:51508/dansql
2018-02-28T09:31:17.748-0700 W NETWORK [thread1] Failed to connect to 34.228.213.238:51508, in(checking socket for error after poll), reason: Connection refused
2018-02-28T09:31:17.749-0700 E QUERY [thread1] Error: couldn't connect to server ds151508.mlab.com:51508, connection attempt failed :
connect#src/mongo/shell/mongo.js:251:13
#(connect):1:6
exception: connect failed
failed to to connect to mongo. Very new to this need help please.
this is what i get:
MongoDB shell version: 3.2.9
connecting to: test
2016-09-12T00:09:34.516+0100 W NETWORK [thread1] Failed to connect to 127.0.0.1:27017, reason: errno:10061 No connection could be made because the target machine actively refused it.
2016-09-12T00:09:34.517+0100 E QUERY [thread1] Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed :
connect#src/mongo/shell/mongo.js:229:14
#(connect):1:6
exception: connect failed
I've this problem with supervisor:
DRPCSpout [ERROR] Failed to fetch DRPC result from DRPC server
org.apache.thrift7.transport.TTransportException: java.net.ConnectException:
Connection refused
What are data? If you need that, I can share it here.