2.0GA console查询出现 The leader has changed. Try again later

codelone · 2021 年3 月 31 日 08:54

nebula 版本：2.0GA
部署方式：分布式 3台 storage 1台graph
硬件信息
- 磁盘： SSD
- CPU、内存信息
问题的具体描述
数据导入后创建索引，手动compact和rebuild index 已完成。
先执行一个不指定属性的查询，出现E_RPC_FAILURE，查看其它帖子是由于加载全部数据查询超时导致。
再执行一个指定属性的查询，出现The leader has changed. Try again later

image746×136 7.76 KB

show hosts 查看节点状态并没有发生变化。
相关的 meta / storage / graph info 日志信息
graph info日志


E0331 16:43:20.931025 215814 StorageClientBase.inl:209] Request to "10.100.2.244":9779 failed: N6apache6thrift9transport19TTransportExceptionE: Timed Out
I0331 16:43:20.936769 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 13]
I0331 16:43:20.936801 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 10]
I0331 16:43:20.936823 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 51]
I0331 16:43:20.936844 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 35]
I0331 16:43:20.936866 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 44]
I0331 16:43:20.936885 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 91]
I0331 16:43:20.936980 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 67]
I0331 16:43:20.937008 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 79]
I0331 16:43:20.937029 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 32]
I0331 16:43:20.937048 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 42]
I0331 16:43:20.937069 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 89]
I0331 16:43:20.937090 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 80]
I0331 16:43:20.937110 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 34]
I0331 16:43:20.937130 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 83]
I0331 16:43:20.937150 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 76]
I0331 16:43:20.937170 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 99]
I0331 16:43:20.937191 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 5]
I0331 16:43:20.937211 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 45]
I0331 16:43:20.937232 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 22]
I0331 16:43:20.937252 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 63]
I0331 16:43:20.937271 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 16]
I0331 16:43:20.937292 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 96]
I0331 16:43:20.937312 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 49]
I0331 16:43:20.937332 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 47]
I0331 16:43:20.937352 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 94]
I0331 16:43:20.937373 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 95]
I0331 16:43:20.937393 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 48]
I0331 16:43:20.937413 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 77]
I0331 16:43:20.937433 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 100]
I0331 16:43:20.937454 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 72]
I0331 16:43:20.937474 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 43]
I0331 16:43:20.937494 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 90]
I0331 16:43:20.937513 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 19]
I0331 16:43:20.937534 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 58]
I0331 16:43:20.937554 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 11]
I0331 16:43:20.937574 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 62]
I0331 16:43:20.937593 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 84]
I0331 16:43:20.937613 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 70]
I0331 16:43:20.937633 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 39]
I0331 16:43:20.937654 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 71]
I0331 16:43:20.937674 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 26]
I0331 16:43:20.937692 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 31]
I0331 16:43:20.937712 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 87]
I0331 16:43:20.937731 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 97]
I0331 16:43:20.937752 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 56]
I0331 16:43:20.937772 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 1]
I0331 16:43:20.937791 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 98]
I0331 16:43:20.937811 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 38]
I0331 16:43:20.937831 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 68]
I0331 16:43:20.937850 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 12]
I0331 16:43:20.937870 215814 StorageClientBase.inl:161] Invalidate the leader for [340, 8]
E0331 16:43:21.081640 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 8
E0331 16:43:21.081836 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 12
E0331 16:43:21.081889 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 68
E0331 16:43:21.081957 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 1
E0331 16:43:21.082011 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 56
E0331 16:43:21.082060 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 71
E0331 16:43:21.082108 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 39
E0331 16:43:21.082156 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 70
E0331 16:43:21.082206 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 31
E0331 16:43:21.082253 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 84
E0331 16:43:21.082301 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 62
E0331 16:43:21.082350 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 11
E0331 16:43:21.082398 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 90
E0331 16:43:21.082446 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 19
E0331 16:43:21.082494 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 72
E0331 16:43:21.082542 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 77
E0331 16:43:21.082590 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 48
E0331 16:43:21.082639 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 94
E0331 16:43:21.082687 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 100
E0331 16:43:21.082736 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 47
E0331 16:43:21.082783 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 49
E0331 16:43:21.082831 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 43
E0331 16:43:21.082950 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 96
E0331 16:43:21.083014 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 16
E0331 16:43:21.083062 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 22
E0331 16:43:21.083110 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 98
E0331 16:43:21.083158 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 45
E0331 16:43:21.083204 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 58
E0331 16:43:21.083251 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 5
E0331 16:43:21.083298 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 99
E0331 16:43:21.083345 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 76
E0331 16:43:21.083392 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 83
E0331 16:43:21.083439 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 87
E0331 16:43:21.083487 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 34
E0331 16:43:21.083534 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 80
E0331 16:43:21.083581 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 89
E0331 16:43:21.083678 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 95
E0331 16:43:21.083729 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 42
E0331 16:43:21.083777 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 32
E0331 16:43:21.083825 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 26
E0331 16:43:21.083874 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 79
E0331 16:43:21.083922 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 67
E0331 16:43:21.083982 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 38
E0331 16:43:21.084033 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 91
E0331 16:43:21.084080 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 97
E0331 16:43:21.084128 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 44
E0331 16:43:21.084177 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 35
E0331 16:43:21.084225 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 51
E0331 16:43:21.084275 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 63
E0331 16:43:21.084322 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 10
E0331 16:43:21.084370 215731 StorageAccessExecutor.h:35] GetNeighborsExecutor failed, error E_RPC_FAILURE, part 13
E0331 16:43:21.084426 215731 StorageAccessExecutor.h:112] Storage Error: part: 8, error: E_RPC_FAILURE(-3).
E0331 16:43:21.084707 215774 QueryInstance.cpp:103] Storage Error: part: 8, error: E_RPC_FAILURE(-3).
I0331 16:43:33.974162 215822 StorageClientBase.inl:142] Update the leader for [340, 13] to "10.100.2.244":9779
I0331 16:43:33.974392 215822 StorageClientBase.inl:142] Update the leader for [340, 19] to "10.100.2.244":9779
I0331 16:43:33.974426 215822 StorageClientBase.inl:142] Update the leader for [340, 22] to "10.100.2.244":9779
I0331 16:43:33.974448 215822 StorageClientBase.inl:142] Update the leader for [340, 31] to "10.100.2.244":9779
I0331 16:43:33.974491 215822 StorageClientBase.inl:142] Update the leader for [340, 34] to "10.100.2.244":9779
I0331 16:43:33.974522 215822 StorageClientBase.inl:142] Update the leader for [340, 38] to "10.100.2.244":9779
I0331 16:43:33.974545 215822 StorageClientBase.inl:142] Update the leader for [340, 45] to "10.100.2.244":9779
I0331 16:43:33.974567 215822 StorageClientBase.inl:142] Update the leader for [340, 51] to "10.100.2.244":9779
I0331 16:43:33.974589 215822 StorageClientBase.inl:142] Update the leader for [340, 58] to "10.100.2.244":9779
I0331 16:43:33.974611 215822 StorageClientBase.inl:142] Update the leader for [340, 62] to "10.100.2.244":9779
I0331 16:43:33.974633 215822 StorageClientBase.inl:142] Update the leader for [340, 77] to "10.100.2.244":9779
I0331 16:43:33.974656 215822 StorageClientBase.inl:142] Update the leader for [340, 80] to "10.100.2.244":9779
I0331 16:43:33.974679 215822 StorageClientBase.inl:142] Update the leader for [340, 83] to "10.100.2.244":9779
I0331 16:43:33.974700 215822 StorageClientBase.inl:142] Update the leader for [340, 95] to "10.100.2.244":9779
I0331 16:43:33.974722 215822 StorageClientBase.inl:142] Update the leader for [340, 96] to "10.100.2.244":9779
I0331 16:43:33.974745 215822 StorageClientBase.inl:142] Update the leader for [340, 97] to "10.100.2.244":9779
I0331 16:43:33.974766 215822 StorageClientBase.inl:142] Update the leader for [340, 100] to "10.100.2.244":9779
I0331 16:43:33.982084 215823 StorageClientBase.inl:142] Update the leader for [340, 5] to "10.100.2.244":9779
I0331 16:43:33.982149 215823 StorageClientBase.inl:142] Update the leader for [340, 11] to "10.100.2.244":9779
I0331 16:43:33.982228 215823 StorageClientBase.inl:142] Update the leader for [340, 12] to "10.100.2.244":9779
I0331 16:43:33.982270 215823 StorageClientBase.inl:142] Update the leader for [340, 26] to "10.100.2.244":9779
I0331 16:43:33.982296 215823 StorageClientBase.inl:142] Update the leader for [340, 35] to "10.100.2.244":9779
I0331 16:43:33.982319 215823 StorageClientBase.inl:142] Update the leader for [340, 39] to "10.100.2.244":9779
I0331 16:43:33.982344 215823 StorageClientBase.inl:142] Update the leader for [340, 42] to "10.100.2.244":9779
I0331 16:43:33.982365 215823 StorageClientBase.inl:142] Update the leader for [340, 43] to "10.100.2.244":9779
I0331 16:43:33.982388 215823 StorageClientBase.inl:142] Update the leader for [340, 44] to "10.100.2.244":9779
I0331 16:43:33.982409 215823 StorageClientBase.inl:142] Update the leader for [340, 47] to "10.100.2.244":9779
I0331 16:43:33.982430 215823 StorageClientBase.inl:142] Update the leader for [340, 48] to "10.100.2.244":9779
I0331 16:43:33.982451 215823 StorageClientBase.inl:142] Update the leader for [340, 56] to "10.100.2.244":9779
I0331 16:43:33.982473 215823 StorageClientBase.inl:142] Update the leader for [340, 63] to "10.100.2.244":9779
I0331 16:43:33.982494 215823 StorageClientBase.inl:142] Update the leader for [340, 67] to "10.100.2.244":9779
I0331 16:43:33.982515 215823 StorageClientBase.inl:142] Update the leader for [340, 71] to "10.100.2.244":9779
I0331 16:43:33.982537 215823 StorageClientBase.inl:142] Update the leader for [340, 72] to "10.100.2.244":9779
I0331 16:43:33.982558 215823 StorageClientBase.inl:142] Update the leader for [340, 79] to "10.100.2.244":9779
I0331 16:43:33.982579 215823 StorageClientBase.inl:142] Update the leader for [340, 84] to "10.100.2.244":9779
I0331 16:43:33.982626 215823 StorageClientBase.inl:142] Update the leader for [340, 99] to "10.100.2.244":9779
E0331 16:43:33.983220 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 84
E0331 16:43:33.983319 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 79
E0331 16:43:33.983350 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 72
E0331 16:43:33.983381 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 71
E0331 16:43:33.983409 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 67
E0331 16:43:33.983494 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 63
E0331 16:43:33.983530 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 56
E0331 16:43:33.983558 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 47
E0331 16:43:33.983587 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 44
E0331 16:43:33.983614 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 43
E0331 16:43:33.983642 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 42
E0331 16:43:33.983670 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 12
E0331 16:43:33.983698 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 35
E0331 16:43:33.983726 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 62
E0331 16:43:33.983754 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 39
E0331 16:43:33.983799 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 51
E0331 16:43:33.983829 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 97
E0331 16:43:33.983856 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 99
E0331 16:43:33.983883 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 5
E0331 16:43:33.983952 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 38
E0331 16:43:33.983985 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 19
E0331 16:43:33.984012 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 45
E0331 16:43:33.984040 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 22
E0331 16:43:33.984067 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 34
E0331 16:43:33.984094 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 80
E0331 16:43:33.984122 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 58
E0331 16:43:33.984149 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 11
E0331 16:43:33.984176 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 13
E0331 16:43:33.984205 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 77
E0331 16:43:33.984231 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 31
E0331 16:43:33.984258 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 100
E0331 16:43:33.984287 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 83
E0331 16:43:33.984313 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 48
E0331 16:43:33.984341 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 95
E0331 16:43:33.984369 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 26
E0331 16:43:33.984395 215731 StorageAccessExecutor.h:35] IndexScanExecutor failed, error E_LEADER_CHANGED, part 96
E0331 16:43:33.984501 215731 QueryInstance.cpp:103] Storage Error: The leader has changed. Try again later

storage info/error 没有打印日志

为什么不指定属性会加载全部的数据再limit结果？
超时为什么会导致leader change？

bright-starry-sky · 2021 年4 月 2 日 07:18

看了一下log，关于limit的问题，这个涉及到一个limit下推的问题，目前的lookup和match还不支持limit下推，limit的工作是graph层在做,这个limit下推的需求已经在计划中了；关于 leaderChange的问题，其实timeout不是导致leaderChange的原因，当网络闪断，心跳延迟等情况下会照成leaderChange。

codelone · 2021 年4 月 2 日 07:30

明白了

skyWalker1997 · 2021 年4 月 7 日 02:09

请问目前如果发生了leaderchange并导致某些结点 no valid partition 是不是只能手动balance leader？目前有自动balance的方法吗？配置文件有参数可以设置吗？

bright-starry-sky · 2021 年4 月 8 日 09:50

balance leader 主要用在leader不平衡的时候，可以通过 balance leader 将 leader 平均分布到所有存储节点上。
“no valid partition ” 的出现可能是网络延迟或其他原因导致的leader切换，这个状态的时候其实是将follower切换为leader的过程。应该很快nebula自己就可以修复了。

tomZou12 · 2021 年4 月 16 日 03:27

2.0GA还不支持limit下推吗

steam · 2021 年4 月 20 日 04:20

可以看下这个帖子，目前我们在计划开发 lookup limit 下推

tomZou12 · 2021 年4 月 20 日 09:20

请问look limit 下推计划什么时候上线呢

yee · 2021 年4 月 20 日 10:52

cc @bright-starry-sky

steam · 2021 年4 月 21 日 02:23

暂时没有一个明确的发布时间，有进一步的版本信息出来我来同步哈

tomZou12 · 2021 年4 月 22 日 03:35

想请问一下，哪些场景实现了limit的下推呢。

yee · 2021 年4 月 22 日 09:58

看下我们的测试示例：

github.com

vesoft-inc/nebula-graph/blob/master/tests/tck/features/optimizer/PushLimitDownRule.feature

# Copyright (c) 2021 vesoft inc. All rights reserved.
#
# This source code is licensed under Apache 2.0 License,
# attached with Common Clause Condition 1.0, found in the LICENSES directory.
Feature: Push Limit down rule

  Background:
    Given a graph with space named "nba"

  Scenario: push limit down to GetNeighbors
    When profiling query:
      """
      GO 1 STEPS FROM "James Harden" OVER like REVERSELY |
      Limit 2
      """
    Then the result should be, in any order:
      | like._dst         |
      | "Dejounte Murray" |
      | "Luka Doncic"     |
    And the execution plan should be:

This file has been truncated. show original

github.com

vesoft-inc/nebula-graph/blob/master/tests/tck/features/optimizer/TopNRule.feature

# Copyright (c) 2021 vesoft inc. All rights reserved.
#
# This source code is licensed under Apache 2.0 License,
# attached with Common Clause Condition 1.0, found in the LICENSES directory.
Feature: TopN rule

  Background:
    Given a graph with space named "nba"

  Scenario: apply topn opt rule
    When profiling query:
      """
      GO 1 STEPS FROM "Marco Belinelli" OVER like
      YIELD like.likeness AS likeness |
      ORDER BY likeness |
      LIMIT 2
      """
    Then the result should be, in order:
      | likeness |
      | 50       |

This file has been truncated. show original

zhengshuai1030 · 2021 年7 月 5 日 02:20

现在我这个也是导入数据后，查询出现Storage Error: The leader has changed. Try again later ，这个是要手动balance leader 解决吗，还是nebulaGraph 会自动平衡

steam · 2021 年7 月 5 日 02:39

请勿一个问题多处分发浪费他人的回复精力，问题以用spark 导入数据后，查询数据出现 Storage Error: The leader has changed. Try again later 为主