Merge RootCoord, DataCoord And QueryCoord into MixCoord
Make Session into one
issue : https://github.com/milvus-io/milvus/issues/37764
---------
Signed-off-by: Xianhui.Lin <xianhui.lin@zilliz.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>
issue: #40532
- balance should enable only when there's no proxy and datanode which
version is lower than 2.6.0
---------
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #40311
- better logging for grpc resolver
- remove the redundant streaming node manage client when streaming
service is disable
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
related PR: #39522
- Just implement exclusive broadcaster between broadcast message with
same resource key to keep same order in different wal.
- After simplify the broadcast model, original watch-based broadcast is
too complicated and redundant, remove it.
---------
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- add metrics for broadcaster component.
- add metrics for wal flusher component.
- add metrics for wal interceptors.
- add slow log for wal.
- add more label for some wal metrics. (local or remote/catcup or
tailing...)
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- fix the nil pointer bug
- limit the resource usage for streaming e2e
- enhance the go test
- fix: rootcoord block when graceful stop
---------
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- broadcast message can carry multi resource key now.
- implement event-based notification for broadcast messages
- broadcast message use broadcast id as a unique identifier in message
- broadcasted message on vchannels keep the broadcasted vchannel now.
- broadcasted message and broadcast message have a common broadcast
header now.
---------
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- The stats may be kept after wal closing if the growing segment is not
dirty.
- Change the error handling of wal open to avoid redundant manager api
call.
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- Embed the query node into streaming node to make delegator available
at streaming node.
- The embedded query node has a special server label
`QUERYNODE_STREAMING-EMBEDDED`.
- Change the balance strategy to make the channel assigned to streaming
node as much as possible.
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- make broadcast service available for msgstream by reusing the
architecture streaming service
---------
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- Add new rpc for transfer broadcast to streaming coord
- Add broadcast service at streaming coord to make broadcast message
sent automicly
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
We want to support broadcast operation for both streaming and msgstream.
But msgstream can be only sent message from rootcoord and proxy.
So this pr move the streamingcoord to rootcoord to make easier
implementation.
---------
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- move the lifetime implementation of common code out of the server
level lifetime implementation
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #33285
- move streaming related proto into pkg.
- add v2 message type and change flush message into v2 message.
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #33285
- implement streaming service client.
- implement producing and consuming service client by streaming coord
client and streaming node client.
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #33285
- register streaming coord service into datacoord.
- add new streaming node role.
- add global static switch to enable streaming service or not.
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #33285
- add two grpc resolver (by session and by streaming coord assignment
service)
- add one grpc balancer (by serverID and roundrobin)
- add lazy conn to avoid block by first service discovery
- add some utility function for streaming service
Signed-off-by: chyezh <chyezh@outlook.com>
