issue: https://github.com/milvus-io/milvus/issues/41690
This commit implements partial search result functionality when query
nodes go down, improving system availability during node failures. The
changes include:
- Enhanced load balancing in proxy (lb_policy.go) to handle node
failures with retry support
- Added partial search result capability in querynode delegator and
distribution logic
- Implemented tests for various partial result scenarios when nodes go
down
- Added metrics to track partial search results in querynode_metrics.go
- Updated parameter configuration to support partial result required
data ratio
- Replaced old partial_search_test.go with more comprehensive
partial_result_on_node_down_test.go
- Updated proto definitions and improved retry logic
These changes improve query resilience by returning partial results to
users when some query nodes are unavailable, ensuring that queries don't
completely fail when a portion of data remains accessible.
---------
Signed-off-by: Wei Liu <wei.liu@zilliz.com>
Optimize session management by reducing the TTL (Time To Live) value for
service registration from 30 seconds to 10 seconds. This change improves
the system's ability to detect service failures more quickly and
enhances overall cluster responsiveness.
Changes include:
- Update default session TTL from 30s to 10s in milvus.yaml
- Adjust DefaultSessionTTL constant from 30 to 10 seconds
- Update SessionTTL default value from 60 to 10 seconds
- Maintain consistent TTL values across configuration files
This optimization reduces the time required for the system to detect
when services become unavailable, leading to faster failover and
improved cluster stability during node failures or network issues.
Signed-off-by: Wei Liu <wei.liu@zilliz.com>
1. Add global scheduler for datacoord.
2. Define and implement new CreateTask, QueryTask, DropTask interfaces.
3. Refine Import, Compaction, Stats, Index task.
issue: https://github.com/milvus-io/milvus/issues/41123
Co-authored-by: Cai Zhang <cai.zhang@zilliz.com>
issue: #41816
pr #37983 introduced an issue, if doesn't specified
`defaultRootPassword` in milvus.yaml, then `"Milvus"` will be used as
default password for root user, instead of `Milvus`.
This PR fix the unexpected password for root, and add comment for case
which use large numeric password requires double quotes.
Signed-off-by: Wei Liu <wei.liu@zilliz.com>
issue: #41544
- Implement in-memory shard manager to maintain the shard state at write
ahead.
- Remove all rpc and meta operation at write ahead, make the segment
assignment logic only use wal and memory.
- Refactor global stats management, add node-level flush policy.
- Fix the recovery storage inconsistency bug when graceful close.
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #41544
- simplify the proto message for flush and create segment.
- simplify the msg handler for flowgraph.
---------
Signed-off-by: chyezh <chyezh@outlook.com>
issue: https://github.com/milvus-io/milvus/issues/41435
this PR is based on https://github.com/milvus-io/milvus/pull/41436.
Improvements include:
- Lazy Load support for Storage v1
- Use Low/High watermark to control eviction
- Caching Layer related config changes
- Removed ChunkCache related configs and code in golang
- Add `PinAllCells` helper method to CacheSlot class
- Modified ValueAt, RawAt, PrimitiveRawAt to Bulk version, to reduce
caching layer overhead
- Removed some unclear templated bulk_subscript methods
- CachedSearchIterator to store PinWrapper when searching on
ChunkedColumn, and removed unused contrustor.
---------
Signed-off-by: Buqian Zheng <zhengbuqian@gmail.com>
issue: #40638
- Add `ChannelID` for streaming replica in future.
- Remove the pchannel count fair balance policy for streaming.
- Add Score based vchannel fair balance policy for streaming.
- Add pchannel stats manager to collect the stats of pchannel for
balancer.
- Add configuration and metrics for new balance policy
---------
Signed-off-by: chyezh <chyezh@outlook.com>
#35856
1. Add function-related configuration in milvus.yaml
2. Add null and empty value check to TextEmbeddingFunction
Signed-off-by: junjie.jiang <junjie.jiang@zilliz.com>
two point:
(1) reoder conjucts expr's subexpr, postpone heavy operations
sequence: int(column) -> index(column) -> string(column) -> light
conjuct
...... -> json(column) -> heavy conjuct -> two_column_compare
(2) support pre filter for expr execute, skip scan raw data that had
been skipped
because of preceding expr result.
#39869
Signed-off-by: luzhang <luzhang@zilliz.com>
Co-authored-by: luzhang <luzhang@zilliz.com>
See also #40558
Related to #35303 & #38066 as well
This PR:
- Add `BufferedForward` to limit memory usage forwarding stream delete
- Add `UseLoad` flag to determine `Delete` shall use `segment.Delete` or
`segment.LoadDelta`
- Fix delegator accidentally use always true candidate while load
streaming delta
---------
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
Introduce a batch subscription mechanism in msgdispatcher: the
msgdispatcher now includes a vchannel watch task queue, where all
vchannels in the queue will subscribe to the MQ only once and pull
messages from the oldest vchannel checkpoint to the latest.
issue: https://github.com/milvus-io/milvus/issues/39862
---------
Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
issue: #38399
- Make a timetick-commit-based write ahead buffer at write side.
- Add a switchable scanner at read side to transfer the state between
catchup and tailing read
Signed-off-by: chyezh <chyezh@outlook.com>
This PR limits the maximum number of consumers per pchannel to 10 for
each QueryNode and DataNode.
issue: https://github.com/milvus-io/milvus/issues/37630
---------
Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
Related to #39205
This PR merge `RLock` & `PinIfNotReleased` into `PinIf` function
preventing segment being released before any Read operation finished.
---------
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
