Error occurred after version upgrade

[yangshiron]

This error occurred when I upgraded Springboot version to 3.1.6，But using version 3.1.5 does not have this issue, while the Java SDK version is 2.2.11
2023-12-06 15:28:19.190 [XNIO-1 task-2] ERROR io.milvus.client.AbstractMilvusGrpcClient - HasPartitionRequest RPC failed!
io.grpc.StatusRuntimeException: UNKNOWN
at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:271)
at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:252)
at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:165)
at io.milvus.grpc.MilvusServiceGrpc$MilvusServiceBlockingStub.hasPartition(MilvusServiceGrpc.java:4198)
at io.milvus.client.AbstractMilvusGrpcClient.hasPartition(AbstractMilvusGrpcClient.java:975)
at io.milvus.client.MilvusServiceClient.lambda$hasPartition$18(MilvusServiceClient.java:388)
at io.milvus.client.MilvusServiceClient.retry(MilvusServiceClient.java:259)
at io.milvus.client.MilvusServiceClient.hasPartition(MilvusServiceClient.java:388)
at com.zstech.milvusplus.util.MilvusUtil.hasPartition(MilvusUtil.java:189)
at com.zstech.milvusplus.util.MilvusUtil.getExistPartitionNames(MilvusUtil.java:415)
at com.zstech.milvusplus.util.MilvusUtil.search(MilvusUtil.java:508)

[xkaaaaaa]

我也遇到了，springboot 3.1.5 正常 3.1.6 和 3.2.0 就不正常了

[tzolov]

I can confirm it as well! Milvus Java client is unusable (for me) at the moment.
UPDATE: see my workaround below.

[xiaofan-luan]

/assign @yhmo
could you help on this one?
I guess this is due to some dependency issue

[tzolov]

Looks like the problem comes with the io.netty:netty-codec-http2 dependency!
By default Spring Boot 3.2.0 uses latest version: 4.1.101.Final. Later cause the milvus client to crash with the above error.

My workaround was to downgrade io.netty:netty-codec-http2 to 4.1.100.Final, by adding it explicitly to my pom:

    <dependency>
	    <groupId>io.netty</groupId>
	    <artifactId>netty-codec-http2</artifactId>
	    <version>4.1.100.Final</version>
    </dependency>

Additionally to avoid some security vulnerabilities caused by theoutdated milvus (grpc/netty) dependecies you can try this:

<dependency>
	<groupId>io.milvus</groupId>
	<artifactId>milvus-sdk-java</artifactId>
	<version>2.3.3</version>
	<exclusions>
		<exclusion>
			<groupId>io.netty</groupId>
			<artifactId>netty-codec</artifactId>
		</exclusion>
		<exclusion>
			<groupId>io.netty</groupId>
			<artifactId>netty-codec-http2</artifactId>
		</exclusion>
	</exclusions>
</dependency>

<dependency>
	<groupId>io.netty</groupId>
	<artifactId>netty-codec</artifactId>
	<version>4.1.101.Final</version>
</dependency>
<dependency>
	<groupId>io.netty</groupId>
	<artifactId>netty-codec-http2</artifactId>
	<version>4.1.100.Final</version>
</dependency>

hope this helps.

[yhmo]

To support TLS connection, java sdk introduces a dependency grpc-netty from v2.2.10: https://github.com/milvus-io/milvus-sdk-java/blob/master/src/main/java/io/milvus/client/MilvusServiceClient.java#L93

In the Java sdk pom.xml we can see:

        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-netty</artifactId>
            <version>${grpc.version}</version>
        </dependency>

The version of grpc-netty is consistent with the grpc lib version. Milvus is using grpc 1.46 to build sdk for client-side and api for server-side, so we can't change this version.

This error is caused by incompatible versions of user's pre-installed netty lib and the java sdk grpc-netty lib. So far I don't have a perfect solution to fix it. Thanks @tzolov for the workaround.

[yhmo]

Link to grpc/grpc-java#10665
The grpc-java 1.59.1 contains the fix: https://github.com/grpc/grpc-java/releases/tag/v1.59.1

[yhmo]

I have verified that upgrading the java sdk's grpc dependency from 1.46 to 1.59.1 can avoid these errors.
I need to do some testing. I will upgrade grpc version to 1.59.1 in the next sdk version if no compatible issues are found.

[yhmo]

The #713 and #713 has upgraded the grpc to 1.59.1

[ysr1127]

When is the next SDK version expected to be released

[yhmo]

When is the next SDK version expected to be released

2.3.4 already released