Shilun Fan created RATIS-2402:
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Summary: Fix CallId overflow when parsing gRPC metadata
Key: RATIS-2402
URL: https://issues.apache.org/jira/browse/RATIS-2402
Project: Ratis
Issue Type: Bug
Reporter: Shilun Fan
Assignee: Shilun Fan
### Problem
The `GrpcUtil.getCallId()` method uses `Integer.parseInt()` to parse CallId
from gRPC metadata, which causes overflow when CallId exceeds Integer.MAX_VALUE
(2,147,483,647). This can result in incorrect CallId values or
NumberFormatException in high-throughput scenarios where CallId may grow beyond
32-bit integer range.
ratis-proto/src/main/proto/Raft.proto:117 RaftRpcRequestProto.callId uint64
atis-proto/src/main/proto/Raft.proto:90 callId uint64
### Solution
Changed to use `Long.parseLong()` instead of `Integer.parseInt()` to support
CallId values beyond the 32-bit integer limit.
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