When autoID is enabled, the preimport task estimates row distribution by
evenly dividing the total row count (numRows) across all vchannels:
`estimatedCount = numRows / vchannelNum`.
However, the actual import task hashes real auto-generated IDs to
determine
the target vchannel. This mismatch can lead to inaccurate row
distribution estimation
in such corner cases:
- Importing 1 row into 2 vchannels:
• Preimport: 1 / 2 = 0 → both v0 and v1 are estimated to have 0 rows
• Import: real autoID (e.g., 457975852966809057) hashes to v1
→ actual result: v0 = 0, v1 = 1
To resolve such corner case, we now allocate at least one segment for
each vchannel
when autoID is enabled, ensuring all vchannels are prepared to receive
data even
if no rows are estimated for them.
issue: https://github.com/milvus-io/milvus/issues/41759
---------
Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
issue: #37166
cause the misuse of timer.Reset, which cause dispatcher failed to send
msg to virtual channel buffer, and dispatcher do splitting again and
again, which hold the dispatcher manager's lock, block watching channel
progress.
This PR fix the misuse of timer.Reset
Signed-off-by: Wei Liu <wei.liu@zilliz.com>
The watch progress is always zero in CheckChannelOperationProgress
response, which is meaningless and confusing. This PR set progress value
in rpc response to fix this problem.
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
1. Move the common modules of streamingNode and dataNode to flushcommon
2. Add new GetVChannels interface for rootcoord
issue: https://github.com/milvus-io/milvus/issues/33285
---------
Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
XuanYang-cn
yihao.dai
congqixia
Zhen Ye
SimFG
wei liu
smellthemoon
CharlesFeng
jaime