Datanode send `SaveBinlogPath` request after every segment flush finish
with the binlog paths and dml/ddl position. But the flush of segments is
not sorted. So we sort the segments according to segment id and find the
largest segment id with not nil dml position which is the position of
the msgstream to recover.

Signed-off-by: sunby <bingyi.sun@zilliz.com>

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

Signed-off-by: dragondriver <jiquan.long@zilliz.com>

* remove proxy service

Signed-off-by: yefu.chen <yefu.chen@zilliz.com>

* remove time sync

Signed-off-by: yefu.chen <yefu.chen@zilliz.com>

* remove proxy service

Signed-off-by: yefu.chen <yefu.chen@zilliz.com>

* remove proxy service

Signed-off-by: yefu.chen <yefu.chen@zilliz.com>

* remove proxy service

Signed-off-by: yefu.chen <yefu.chen@zilliz.com>

* remove proxy service from distributed/masterservice

Signed-off-by: yudong.cai <yudong.cai@zilliz.com>

* fix unittest

Signed-off-by: yudong.cai <yudong.cai@zilliz.com>

* fix static-check

Signed-off-by: yudong.cai <yudong.cai@zilliz.com>

Co-authored-by: yefu.chen <yefu.chen@zilliz.com>

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

Signed-off-by: dragondriver <jiquan.long@zilliz.com>

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

Signed-off-by: dragondriver <jiquan.long@zilliz.com>

Signed-off-by: sunby <bingyi.sun@zilliz.com>

Signed-off-by: dragondriver <jiquan.long@zilliz.com>

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

* DataNode stores segment msgpack positions

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

* Fix typo caused deadlock

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

* Use MsgPack EndPositions for flush pos

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

Signed-off-by: sunby <bingyi.sun@zilliz.com>

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

Signed-off-by: Xiangyu Wang <xiangyu.wang@zilliz.com>

Signed-off-by: sunby <bingyi.sun@zilliz.com>

* Complete Flush proceduer in DataNode

Resolves: #5220

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

* fix unittest

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

Signed-off-by: dragondriver <jiquan.long@zilliz.com>

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

Signed-off-by: sunby <bingyi.sun@zilliz.com>

Signed-off-by: sunby <bingyi.sun@zilliz.com>

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

Signed-off-by: sunby <bingyi.sun@zilliz.com>

We save channels registered in datanode in etcd and restore the cluster info after
restarting.

Signed-off-by: sunby <bingyi.sun@zilliz.com>

Pick up grpc calls to grpc_handler.go and refactor code format

Signed-off-by: sunby <bingyi.sun@zilliz.com>

SaveBinLogPaths saves stream positions at VChannel granularity

resolves #5396

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

Signed-off-by: zw <zw@milvus.io>

Co-authored-by: zw <zw@milvus.io>

Signed-off-by: Binbin Lv <binbin.lv@zilliz.com>

* Split segcore and plan proto for future feature

Signed-off-by: fluorinedog <fluorinedog@gmail.com>

* lint

Signed-off-by: fluorinedog <fluorinedog@gmail.com>

Signed-off-by: xige-16 <xi.ge@zilliz.com>
Signed-off-by: bigsheeper <yihao.dai@zilliz.com>

Co-authored-by: xige-16 <xi.ge@zilliz.com>
Co-authored-by: yudong.cai <yudong.cai@zilliz.com>

Signed-off-by: fluorinedog <fluorinedog@gmail.com>

Signed-off-by: yanliang567 <yanliang.qiao@zilliz.com>

Signed-off-by: fluorinedog <fluorinedog@gmail.com>

* [skip ci] Add test cases of connection interface

Signed-off-by: wangting0128 <ting.wang@zilliz.com>

* [skip ci] Update test code

Signed-off-by: wangting0128 <ting.wang@zilliz.com>

* [skip ci] Update test codes

Signed-off-by: wangting0128 <ting.wang@zilliz.com>

Signed-off-by: quicksilver <zhifeng.zhang@zilliz.com>

Signed-off-by: quicksilver <zhifeng.zhang@zilliz.com>

Signed-off-by: quicksilver <zhifeng.zhang@zilliz.com>

Signed-off-by: fishpenguin <kun.yu@zilliz.com>