Issue with isExists in 3.0.1

Java SDK
1

While using isExists, we are getting this error in 3.0.1

GetMetaRequest failed with unexpected status code
StackTrace:
[com.couchbase.client.core.error.DefaultErrorUtil.keyValueStatusToException(DefaultErrorUtil.java:56), com.couchbase.client.java.kv.ExistsAccessor.lambda$exists$0(ExistsAccessor.java:42), java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:616), java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:591), java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488), java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1975), com.couchbase.client.core.msg.BaseRequest.succeed(BaseRequest.java:143), com.couchbase.client.core.io.netty.kv.KeyValueMessageHandler.decodeAndComplete(KeyValueMessageHandler.java:315), com.couchbase.client.core.io.netty.kv.KeyValueMessageHandler.decode(KeyValueMessageHandler.java:294), com.couchbase.client.core.io.netty.kv.KeyValueMessageHandler.channelRead(KeyValueMessageHandler.java:221), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355), com.couchbase.client.core.io.netty.kv.MemcacheProtocolVerificationHandler.channelRead(MemcacheProtocolVerificationHandler.java:84), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355), com.couchbase.client.core.deps.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:321), com.couchbase.client.core.deps.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:295), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355), com.couchbase.client.core.deps.io.netty.handler.flush.FlushConsolidationHandler.channelRead(FlushConsolidationHandler.java:152), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355), com.couchbase.client.core.deps.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377), com.couchbase.client.core.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363), com.couchbase.client.core.deps.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919), com.couchbase.client.core.deps.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163), com.couchbase.client.core.deps.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714), com.couchbase.client.core.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650), com.couchbase.client.core.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576), com.couchbase.client.core.deps.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493), com.couchbase.client.core.deps.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989), com.couchbase.client.core.deps.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74), com.couchbase.client.core.deps.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30), java.lang.Thread.run(Thread.java:748)]
2

@himanshu.mps thanks for the post, but we need more information to triage. Can you send us some logs and describe what you were doing exactly?

Also, can you please check if the issue still happens with 3.0.2? Thanks!

3

@daschl I have not tested it with 3.0.2 but this is what we were trying to do with isExists. We have replaced it with touch for now.

public Single<Boolean> isExists(String key, String traceId) {
        // Code throwing exception
        return RxJava2Adapter.monoToSingle(primaryReactiveCollection.exists(key).map(result -> result.exists()));
        // Replaced logic with touch
        return RxJava2Adapter.monoToSingle(primaryReactiveCollection
                .touch(key, Duration.ZERO)
                .map(mutationResult -> {return true;})
                .onErrorReturn(false)
        );
    }