DAOS-18785 object: handle resent RPC on DTX non-leader - b28#17989
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DAOS-18785 object: handle resent RPC on DTX non-leader - b28#17989Nasf-Fan wants to merge 1 commit intorelease/2.8from
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Ticket title is 'test_ec_multiple_rank_failure failed during IOR: dfs_write(0x558292ef2000, 2048) failed (5): Input/output error' |
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Usually, most of resent RPCs will be detected and handled on DTX leader. But when DTX leader is switched, such as old DTX leader is dead/evicted, the DTX for some inflight IO maybe in 'prepared' status on a non-leader while related client resends the RPC to new DTX leader. Under such case, DTX-resync may has not handled such DTX in time. Then IO handler on the non-leader needs to check whether related DTX has ever been prepared or not: if yes, directly reply to the DTX leader to avoid misguiding lower layer logic as to generate confused error. Add new test case for that. Signed-off-by: Fan Yong <fan.yong@hpe.com>
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Usually, most of resent RPCs will be detected and handled on DTX leader. But when DTX leader is switched, such as old DTX leader is dead/evicted, the DTX for some inflight IO maybe in 'prepared' status on a non-leader while related client resends the RPC to new DTX leader. Under such case, DTX-resync may has not handled such DTX in time. Then IO handler on the non-leader needs to check whether related DTX has ever been prepared or not: if yes, directly reply to the DTX leader to avoid misguiding lower layer logic as to generate confused error.
Add new test case for that.
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