Unable To Connect To The Database Download Server Dns Lookup Failed
Download File https://urllie.com/2xUJaV
had same issue fired above with same conditions.
As @Gabriele_Pennacchia pointed out in his comment I edited the pgBouncer ConfigMap, but I put the whole FQDN like: xxx.yyy.svc.cluster.local, restarted the deployment and now was able to connect to the pgbouncer server successfully.
There may be another way that is baked into pgbouncer. The /docs/content/tutorial/connection-pooling.md file (in the repo) describes a way to change cr.yaml to inject other databases into pgbouncer.ini. It says:
I started this journey thinking that the issue that is keeping pgbouncer from working was related to an SSL issue but I now thing that the issue is occurring because the cluster has configured pgbouncer to look for the primary database server on the URI: cluster1-primary (we renamed to: pg-cluster1 in our cr.yaml).
_______________________________ This indicates that some sort of nonrecoverable error occurred during a database lookup. This may be because the database files (for example, BSD-compatible HOSTS, SERVICES, or PROTOCOLS files) could not be found, or a DNS request was returned by the server with a severe error.
So, if you ping -I (your external interface name, as seen in 'ifconfig') to the address of the DNS server, you get responses? Your OAuth DNS requests will be coming out the front side interface - so, from your SNAT IP (usually) or VIP.. not management, as your digs and nslookups would use.
When resolving the LDAP server address, the system supports DNS SRV and DNS A/AAAA lookups. The system always tries in the first instance to set up a TLS connection with the LDAP server. If that fails it may fall back to a TCP connection if allowed.
The system will connect to the port returned by an SRV lookup, otherwise it will connect to 389 (TCP) or 636 (TLS). Requests to search the Active Directory Global Catalog use ports 3268 (TCP) and 3269 (TLS).
When a DNS lookup is successful, the system will first attempt to establish a TLS connection with the server at the returned address. If the TLS connection attempt fails, the system will then attempt a TCP connection, but only if Allow insecure transport is enabled. Only TLS connections are attempted as a result of _ldaps lookups.
If necessary you can reinstate access via the Pexip Infinity local on-box database, so that administrators can log in via the default account (typically 1_____) and will have full administrator privileges. You may need to do this if, for example, the Authentication source is configured as LDAP database and your connectivity to the LDAP server goes down or your credentials become invalid.
You can use a command line tool such as 2__________, which is available for Mac and Linux systems, to help test and diagnose connectivity issues with the LDAP server. Note that 3__________ is installed by default on all Pexip Infinity nodes.
The 4_______________________________________________________________________________. The hostname is typically specified in the5___________ file, which is used to configure the connection between6________ and the API server. In this case, the hostname contains a wildcard, which is causing the DNS resolver to fail to find the correct IP address for the API server.
7_________________ If the person who created and publishedthe data source in Tableau Desktop needed to install additionaldatabase drivers, you may need to install them on Tableau Serveras well. If you are running a distributed installation of TableauServer where, for example, the data server process is running on an additional node, any required database drivers must be installedthere as well as on the initial server node. Other processes requiredrivers as well. See Database Drivers formore information.
Thanks for a quick reply. The node.js server is not on the local development machine and is deployed in a Docker container in a Kubernetes cluster on cloud.
For the connection, I am just passing the IP address of the server (eg. 0.0.0.0) while creating a new Cluster object using the SDK and the name of the bucket to the openBucket method of the cluster object.
K8S usually runs internal DNS, and you would want to use the machine name, not the IP address on your web backend server, to talk to the database. Not using an IP is even more critical when you have more than one node in your cluster, as if that pod fails, your web server has no other servers to fall back on.
SQL backup selections expand and the Backup job fails with "An attempt to connect to SQL Server has failed. The logon account may have invalid credentials, or the logon account may have been applied to the wrong resource.".
V-79-57344-893 - Snapshot Technology: Initialization failure on: "\". Snapshot technology used: Microsoft Volume Shadow Copy Service (VSS). Snapshot technology error (0xE000037D): An attempt to connect to SQL Server has failed. The logon account may have invalid credentials, or the logon account may have been applied to the wrong resource.
This error occurs when the needed Oracle archive logs have been removed from your server before AWS DMS was able to use them to capture changes. Increase your log retention policies on your database server. For an Amazon RDS database, run the following procedure to increase log retention. For example, the following code increases log retention on an Amazon RDS DB instance to 24 hours.
At the same time we were looking into the DNS lookup failures, we were also digging into the 500ms timeouts between Titan Marshal and Flipper. Specifically, why so many timeouts to Flipper when calls to other services from Titan Marshal hardly ever failed?
We knew we were having DNS issues, so we decided to instrument how long the DNS lookup and TCP connect times were taking for Flipper. This RisingStack article had a good explanation of how to get these timings out of a NodeJS HTTP request, which we added to Flipper and exported the timings as Prometheus metrics.
Further reading and digging into various connection and DNS timeouts led us to other articles with similar DNS and connection timeout issues. We tried some of the simplier solutions too see if they would help the DNS lookup, but still no joy. Some solutions involved patching tc, libc, musl, etc which was not an avenue we wished to go down without knowing if the patches would really solve the problem.
The "Temporary failure in name resolution error" is an error that causes network connectivity issues on your system. It can prevent you from installing packages, prevent sending or receiving emails, or result in failed network requests.
If there are no additional discovery methods for SQL, it is likely the database server software instance was not discovered. As a result, the database detail pattern was not triggered. Or, there is no deep database discovery for the database type yet. If the database SI is not discovered, it is likely there was no database server process running at the time of discovery.
Be sure that the login is the current credential for the database server. To do this, go to the 8____________________ page in the UI and click 9______________to test the access.
Remote access may fail if the database server port is blocked or remote access is disabled. When testing the database credentials, you may get an error, as listed below. Failure messages differ between database types.
10________: This can be verified by accessing the database locally from the server but should also be verified using a remote connection as remote access can be restricted by the database administrator.
11________: For information on download links to the database JDBC drivers, see Managing database drivers. The JDBC driver must be compatible with OpenJDK 8 and with the version of the database server it is connecting to.
The query-style type accepts a generalized database query. No particularkey value is assumed by Exim for query-style lookups. You can use whicheverExim variables you need to construct the database query.
which means that only linear searching and DBM lookups are included by default.For some types of lookup (e.g. SQL databases), you need to install appropriatelibraries and header files before building Exim.
Lookup functions can return temporary error codes if the lookup cannot becompleted. For example, an SQL or LDAP database might be unavailable. For thisreason, it is not advisable to use a lookup that might do this for criticaloptions such as a list of local domains.
When a lookup cannot be completed in a router or transport, deliveryof the message (to the relevant address) is deferred, as for any othertemporary error. In other circumstances Exim may assume the lookup has failed,or may give up altogether.
For an SOA lookup, while no result is obtained the lookup is redone withsuccessively more leading components dropped from the given domain.Only the primary-nameserver field is returned unless a field separator isspecified.
You should be careful about how you use this lookup because, unless thetop-level domain does not exist, the lookup always returns some host names. Thesort of use to which this might be put is for seeing if the name servers for agiven domain are on a blacklist. You can probably assume that the name serversfor the high-level domains such as com or co.uk are not going to be onsuch a list.
The connection to an LDAP server may either be over TCP/IP, or, when OpenLDAPis in use, via a Unix domain socket. The example given above does not specifyan LDAP server. A server that is reached by TCP/IP can be specified in a queryby starting it with
If the port (and preceding colon) are omitted, the standard LDAP port (389) isused. When no server is specified in a query, a list of default servers istaken from the ldap_default_servers configuration option. This supplies acolon-separated list of servers which are tried in turn until one successfullyhandles a query, or there is a serious error. Successful handling eitherreturns the requested data, or indicates that it does not exist. Serious errorsare syntactical, or multiple values when only a single value is expected.Errors which cause the next server to be tried are connection failures, bindfailures, and timeouts. 5376163bf9