[RATIS-715] GrpcLogAppender holds references to state machine data

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: gRPC, server
• Target Version/s: 0.5.0
• Assignee: Lokesh Jain
• Reporter: Lokesh Jain
• Created: 14/Oct/19 13:30
• Updated: 24/Oct/19 14:12
• Resolved: 24/Oct/19 14:12

Description

The pendingRequestsMap currently maintains all the AppendEntryRequests sent to a follower until they timeout. These contain LogEntryProto and hence contain references to the state machine data. Only the metadata of the request should be stored in the log appender map.

Issue Links

• is related to: RATIS-728 TimeoutScheduler for GrpcLogAppender holds on to the AppendEntryRequest till it times out even though request succeeds