java调用redis时,报 OOM command not allowed when used memory

what 发表于: 2023-09-18   最后更新时间: 2023-09-18 11:47:14   545 游览

java调用redis时候,报

OOM command not allowed when used memory > 'maxmemory'.

详细错误如下:

[2023-09-14 12:01:30] [ERROR] org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/].[dispatcherServlet] 182 -- [] Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: OOM command not allowed when used memory > 'maxmemory'.] with root cause
io.lettuce.core.RedisCommandExecutionException: OOM command not allowed when used memory > 'maxmemory'.
    at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:118) ~[lettuce-core-5.0.4.RELEASE.jar:na]
    at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:109) ~[lettuce-core-5.0.4.RELEASE.jar:na]
    at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:598) ~[lettuce-core-5.0.4.RELEASE.jar:na]
    at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:556) ~[lettuce-core-5.0.4.RELEASE.jar:na]
    at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:508) ~[lettuce-core-5.0.4.RELEASE.jar:na]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:647) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:582) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:499) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:461) ~[netty-transport-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884) ~[netty-common-4.1.25.Final.jar:4.1.25.Final]
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.25.Final.jar:4.1.25.Final]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_211]

我该如何解决?

发表于 2023-09-18

Redis的使用内存已经超过了所设置的最大内存限制。

查看你设置的:

你可以使用 CONFIG GET maxmemory 命令来查看当前的 maxmemory 。

redis-cli
127.0.0.1:6379> CONFIG GET maxmemory

调整:

在配置文件中找到 maxmemory 参数,你想将最大内存限制设置为 1 GB,可以这样:

maxmemory 1GB

你也可以使用其他单位,如 MB(兆字节)或 KB(千字节)。

重启 Redis:为了使新的 maxmemory 设置生效,你需要重启 Redis 服务器。

临时调整:

redis-cli
127.0.0.1:6379> CONFIG SET maxmemory 1GB

如果你的 Redis 部署使用了 Redis Sentinel 或 Redis Cluster,你可以在运行多个 Redis 节点的情况下动态调整内存限制,而无需重启整个集群。你可以逐个修改每个节点的配置,并确保它们保持同步。

你的答案

查看redis相关的其他问题或提一个您自己的问题