In Kibana 7.7.1, often try create too many scroll contexts when query the index kibana_task_manager


[2020-10-09T21:08:38,776][WARN ][r.suppressed             ] [MyNode00] path: /.kibana_task_manager/_update_by_query, params: {ignore_unavailable=true, refresh=true, conflicts=proceed, index=.kibana_task_manager, max_docs=10}
org.elasticsearch.action.search.SearchPhaseExecutionException: all shards failed
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseFailure(AbstractSearchAsyncAction.java:551) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.executeNextPhase(AbstractSearchAsyncAction.java:309) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseDone(AbstractSearchAsyncAction.java:580) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.onShardFailure(AbstractSearchAsyncAction.java:393) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.access$100(AbstractSearchAsyncAction.java:68) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.search.AbstractSearchAsyncAction$1.onFailure(AbstractSearchAsyncAction.java:245) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.search.SearchExecutionStatsCollector.onFailure(SearchExecutionStatsCollector.java:73) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.ActionListenerResponseHandler.handleException(ActionListenerResponseHandler.java:59) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.action.search.SearchTransportService$ConnectionCountingHandler.handleException(SearchTransportService.java:402) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.TransportService$ContextRestoreResponseHandler.handleException(TransportService.java:1139) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.InboundHandler.lambda$handleException$2(InboundHandler.java:244) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.common.util.concurrent.EsExecutors$DirectExecutorService.execute(EsExecutors.java:225) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.InboundHandler.handleException(InboundHandler.java:242) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.InboundHandler.handlerResponseError(InboundHandler.java:234) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.InboundHandler.messageReceived(InboundHandler.java:137) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.InboundHandler.inboundMessage(InboundHandler.java:103) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.TcpTransport.inboundMessage(TcpTransport.java:676) [elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.transport.netty4.Netty4MessageChannelHandler.channelRead(Netty4MessageChannelHandler.java:62) [transport-netty4-client-7.7.1.jar:7.7.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:321) [netty-codec-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:295) [netty-codec-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.logging.LoggingHandler.channelRead(LoggingHandler.java:227) [netty-handler-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1470) [netty-handler-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1219) [netty-handler-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1266) [netty-handler-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:498) [netty-codec-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:437) [netty-codec-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:276) [netty-codec-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:615) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:578) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) [netty-transport-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) [netty-common-4.1.45.Final.jar:4.1.45.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.45.Final.jar:4.1.45.Final]
        at java.lang.Thread.run(Thread.java:832) [?:?]
Caused by: org.elasticsearch.ElasticsearchException: Trying to create too many scroll contexts. Must be less than or equal to: [10240]. This limit can be set by changing the [search.max_open_scroll_context] setting.
        at org.elasticsearch.search.SearchService.createContext(SearchService.java:673) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:631) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:428) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.search.SearchService.access$200(SearchService.java:135) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.search.SearchService$2.lambda$onResponse$0(SearchService.java:395) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.search.SearchService.lambda$runAsync$0(SearchService.java:411) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:44) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:692) ~[elasticsearch-7.7.1.jar:7.7.1]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-7.7.1.jar:7.7.1]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
        at java.lang.Thread.run(Thread.java:832) ~[?:?]

Hello There
I'm new in elk, Recently elastic often reports an warnning message, I tried to follow the prompts and
increased the search.max_open_scroll_context to 10240, but not work, it happened sometime in a day;
how can I limit the count of scrolls created by kibana?