Spider Feature Matrix
Not complete yet - still being updated
F(*) Federation only , P(*)partioning only . Spider column is for SpiderForMySQL found on the Spider web sIte.
Feature | Spider | 10.0 |
---|---|---|
Clustering and High Availability | ||
Commit, Rollback transactions on multiple backend | Yes | Yes |
Multiplexing to a number of replicas using xa protocol 2PC | Yes | Yes |
Split brain resolution based on a majority decision, failed node is remove from the list of replicas | Yes | Yes |
Enable a failed backend to re enter the cluster transparently | No | No |
Synchronize DDL to backend, table modification, schema changes | No | No |
Synchronize DDL to other Spider | No | No |
GTID tracking per table on XA error | No | Yes |
Transparent partitioning | No | No |
Covered by generic SQL test case | Yes | Yes |
Heterogenous Backends | ||
MariaDB and MySQL database backend | Yes | Yes |
Oracle database backend, if build from source against the client library 'ORACLE_HOME' | Yes | Yes |
Local table attachment | Yes | Yes |
Performance | ||
Index Condition Pushdown | No | No |
Engine Condition Pushdown | Yes | Yes |
Concurrent backend scan | Yes | No |
Concurrent partition scan | Yes | No |
Batched key access | Yes | Yes |
Block hash join | No | Yes |
HANDLER backend propagation | Yes | Yes |
HANDLER backend translation from SQL | Yes | Yes |
HANDLER OPEN cache per connection | No | Yes |
HANDLER use prepared statement | No | Yes |
HANDLER_SOCKET protocol backend propagation | Yes | Yes |
HANDLER_SOCKET backend translation from SQL | No | No |
Map reduce for ORDER BY ... LIMIT | Yes | Yes |
Map reduce for MAX & MIN & SUM | Yes | Yes |
Map reduce for some GROUP BY | Yes | Yes |
Batch multiple WRITES in auto commit to reduce network round trip | Yes | Yes |
Relaxing backend consistency | Yes | Yes |
Execution Control | ||
Configuration at table and partition level, settings can change per data collection | Yes | Yes |
Configurable empty result set on errors. For API that does not have transactions replay | Yes | Yes |
Query Cache tuning per table of the on remote backend | Yes | Yes |
Index Hint per table imposed on remote backend | Yes | Yes |
SSL connections to remote backend connections | Yes | Yes |
Table definition discovery from remote backend | Yes | F(*) |
Direct SQL execution to backend via UDF | Yes | Yes |
Table re synchronization between backends via UDF | Yes | Yes |
Maintain Index and Table Statistics of remote backends | Yes | Yes |
Can use Independent Index and Table Statistics | No | Yes |
Maintain local or remote table increments | Yes | Yes |
LOAD DATA INFILE translate to bulk inserting | Yes | Yes |
Performance Schema Probes | Yes | Yes |
Load Balance Reads to replicate weight control | Yes | Yes |
Fine tuning tcp timeout, connections retry | Yes | Yes |
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