Oy! Could someone help me verify if I run into this issue https://stackoverflow.com/questions/54659355/flink-temp-jar-upload-directory-deleted? Our Flink 1.17 is deployed to Kubernetes, our Docker image uses official Flink image as base. I upload packaged JARs through the web interface (cURL through CLI) and sometimes get such an exception, the next time I redeploy, it succeeds.

ERROR: Failed to deploy. Error: Internal server error.
<Exception on server side:
java.util.concurrent.CompletionException: org.apache.flink.client.program.ProgramInvocationException: Error while opening jar file '/tmp/flink-web-3e5531d2-44f3-4491-ae9e-27bb9c3e0c5c/flink-web-upload'
	at org.apache.flink.runtime.webmonitor.handlers.utils.JarHandlerUtils$JarHandlerContext.toPackagedProgram(JarHandlerUtils.java:192)
	at org.apache.flink.runtime.webmonitor.handlers.utils.JarHandlerUtils$JarHandlerContext.applyToConfiguration(JarHandlerUtils.java:149)
	at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.handleRequest(JarRunHandler.java:100)
	at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.handleRequest(JarRunHandler.java:57)
	at org.apache.flink.runtime.rest.handler.AbstractRestHandler.respondToRequest(AbstractRestHandler.java:83)
	at org.apache.flink.runtime.rest.handler.AbstractHandler.respondAsLeader(AbstractHandler.java:196)
	at org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler.lambda$channelRead0$0(LeaderRetrievalHandler.java:83)
	at java.base/java.util.Optional.ifPresent(Unknown Source)
	at org.apache.flink.util.OptionalConsumer.ifPresent(OptionalConsumer.java:45)
	at org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler.channelRead0(LeaderRetrievalHandler.java:80)
	at org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler.channelRead0(LeaderRetrievalHandler.java:49)
	at org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
	at org.apache.flink.runtime.rest.handler.router.RouterHandler.routed(RouterHandler.java:115)
	at org.apache.flink.runtime.rest.handler.router.RouterHandler.channelRead0(RouterHandler.java:94)
	at org.apache.flink.runtime.rest.handler.router.RouterHandler.channelRead0(RouterHandler.java:55)
	at org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
	at org.apache.flink.shaded.netty4.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
	at org.apache.flink.runtime.rest.FileUploadHandler.channelRead0(FileUploadHandler.java:208)
	at org.apache.flink.runtime.rest.FileUploadHandler.channelRead0(FileUploadHandler.java:69)
	at org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
	at org.apache.flink.shaded.netty4.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)
	at org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:336)
	at org.apache.flink.shaded.netty4.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:308)
	at org.apache.flink.shaded.netty4.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
	at org.apache.flink.shaded.netty4.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at org.apache.flink.shaded.netty4.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
	at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
	at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
	at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
	at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
	at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
	at org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
	at org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.flink.client.program.ProgramInvocationException: Error while opening jar file '/tmp/flink-web-3e5531d2-44f3-4491-ae9e-27bb9c3e0c5c/flink-web-upload'
	at org.apache.flink.client.program.PackagedProgram.checkJarFile(PackagedProgram.java:617)
	at org.apache.flink.client.program.PackagedProgram.loadJarFile(PackagedProgram.java:465)
	at org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:135)
	at org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:65)
	at org.apache.flink.client.program.PackagedProgram$Builder.build(PackagedProgram.java:691)
	at org.apache.flink.runtime.webmonitor.handlers.utils.JarHandlerUtils$JarHandlerContext.toPackagedProgram(JarHandlerUtils.java:190)
	... 50 more
Caused by: java.io.IOException: Error while opening jar file '/tmp/flink-web-3e5531d2-44f3-4491-ae9e-27bb9c3e0c5c/flink-web-upload'
	at org.apache.flink.util.JarUtils.checkJarFile(JarUtils.java:56)
	at org.apache.flink.client.program.PackagedProgram.checkJarFile(PackagedProgram.java:615)
	... 55 more
Caused by: java.io.FileNotFoundException: /tmp/flink-web-3e5531d2-44f3-4491-ae9e-27bb9c3e0c5c/flink-web-upload (Is a directory)
	at java.base/java.io.RandomAccessFile.open0(Native Method)
	at java.base/java.io.RandomAccessFile.open(Unknown Source)
	at java.base/java.io.RandomAccessFile.<init>(Unknown Source)
	at java.base/java.io.RandomAccessFile.<init>(Unknown Source)
	at java.base/java.util.zip.ZipFile$Source.<init>(Unknown Source)
	at java.base/java.util.zip.ZipFile$Source.get(Unknown Source)
	at java.base/java.util.zip.ZipFile$CleanableResource.<init>(Unknown Source)
	at java.base/java.util.zip.ZipFile$CleanableResource.get(Unknown Source)
	at java.base/java.util.zip.ZipFile.<init>(Unknown Source)
	at java.base/java.util.zip.ZipFile.<init>(Unknown Source)
	at java.base/java.util.jar.JarFile.<init>(Unknown Source)
	at java.base/java.util.jar.JarFile.<init>(Unknown Source)
	at java.base/java.util.jar.JarFile.<init>(Unknown Source)
	at org.apache.flink.util.JarUtils.checkJarFile(JarUtils.java:52)
	... 56 more

Would setting a custom tmpdir solve the issue? Would Flink clean itself up then? Are there any other solutions to fix that?