Invention Grant
- Patent Title: Log forwarding to avoid deadlocks during parallel log replay in asynchronous table replication
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Application No.: US14657854Application Date: 2015-03-13
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Publication No.: US09965359B2Publication Date: 2018-05-08
- Inventor: Juchang Lee , Chang-Gyoo Park , Hyoung-Jun Na , Deok-Hoe Kim
- Applicant: Juchang Lee , Chang-Gyoo Park , Hyoung-Jun Na , Deok-Hoe Kim
- Applicant Address: DE Walldorf
- Assignee: SAP SE
- Current Assignee: SAP SE
- Current Assignee Address: DE Walldorf
- Agency: Sterne, Kessler, Goldstein & Fox, PLLC
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06F11/14

Abstract:
Disclosed herein are system, method, and computer program product embodiments for removing a deadlock during replication from distributed source tables to a replica node. An embodiment operates by detecting a deadlock at a parallel log replayer at a replica node. A first replication log entry from a queue at the parallel log replayer is then selected based on whether removing the first replication log entry from the queue removes the deadlock. The first replication log entry is then forwarded to a waiting queue. A second replication log entry is then replayed at the parallel log replayer. After replaying the second replication log entry, the first replication log entry is replayed at the parallel log replayer.
Public/Granted literature
- US20160147858A1 Log Forwarding to Avoid Deadlocks During Parallel Log Replay in Asynchronous Table Replication Public/Granted day:2016-05-26
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