Yugabyte DB

Encryption

• Undestanding the cipher_list and ciphersuite g-flags

Tools and Drivers

• Error while changing the configuration of the tablet
• How to run count(*) query in Yugabyte DB?

YCQL

• Understanding the difference between primary key and partition key when using hash sharding
• CPU spike causing nodes to go irresponsive
• Find the tablet server id for a specific index / primary key.
• Coordinator node overloaded, rejecting connection
• Getting error messages like "Timed out waiting for server response" and "Client request timeout"
• Namespace 'foo' of type 'ycql' not found

YSQL

• How to Troubleshoot Database Transaction Retryable Errors
• How to troubleshoot Schema or Catalog version mismatch database errors
• Database Transactions errors out with "Restart read required"
• Inserting image data into YugabyteDB fails with "ERROR: Illegal state"
• Unable to connect with YSQL after upgrade to 2.4.4

xCluster Replication

• yb-admin alter_universe_replication fails with NOT_THE_LEADER

DocDB

• How to optimize and resolve common memory errors in Yugabyte
• How to troubleshoot database unavailability in Yugabyte
• Pinning the Release Sequence of an Application
• Restarting a YugabyteDB tserver after deleting a colocated table may lead to a tserver crash loop
• Zombie Table after table creation fails due to not in sync between master and tserver
• Working Around Pre-Flight checks failure

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