如何摆脱MEM和SSD层的警告
我有两个层：MEM+SSD。 MEM层几乎总是满90％，有时SSD层也已满。 现在，这种（某种）消息有时是在垃圾邮件：
2022-06-14 07:11:43,607 WARN TieredBlockStore - Target tier: BlockStoreLocation{TierAlias=MEM, DirIndex=0, MediumType=MEM} has no available space to store 67108864 bytes for session: -4254416005596851101
2022-06-14 07:11:43,607 WARN BlockTransferExecutor - Transfer-order: BlockTransferInfo{TransferType=SWAP, SrcBlockId=36401609441282, DstBlockId=36240078405636, SrcLocation=BlockStoreLocation{TierAlias=MEM, DirIndex=0, MediumType=MEM}, DstLocation=BlockStoreLocation{TierAlias=SSD, DirIndex=0, MediumType=SSD}} failed. alluxio.exception.WorkerOutOfSpaceException: Failed to find space in BlockStoreLocation{TierAlias=MEM, DirIndex=0, MediumType=MEM} to move blockId 36240078405636
2022-06-14 07:11:43,607 WARN AlignTask - Insufficient space for worker swap space, swap restore task called.
我的设置有缺陷吗？我该怎么做才能摆脱这些警告？
I have two tiers: MEM+SSD. The MEM layer is almost always at 90% full and sometimes the SSD tier is also full.
Now this (kind of) message is sometimes spamming my log:
2022-06-14 07:11:43,607 WARN TieredBlockStore - Target tier: BlockStoreLocation{TierAlias=MEM, DirIndex=0, MediumType=MEM} has no available space to store 67108864 bytes for session: -4254416005596851101
2022-06-14 07:11:43,607 WARN BlockTransferExecutor - Transfer-order: BlockTransferInfo{TransferType=SWAP, SrcBlockId=36401609441282, DstBlockId=36240078405636, SrcLocation=BlockStoreLocation{TierAlias=MEM, DirIndex=0, MediumType=MEM}, DstLocation=BlockStoreLocation{TierAlias=SSD, DirIndex=0, MediumType=SSD}} failed. alluxio.exception.WorkerOutOfSpaceException: Failed to find space in BlockStoreLocation{TierAlias=MEM, DirIndex=0, MediumType=MEM} to move blockId 36240078405636
2022-06-14 07:11:43,607 WARN AlignTask - Insufficient space for worker swap space, swap restore task called.
Is my setup flawed? What can I do to get rid of these warnings?
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看起来Alluxio工人正在尝试移动/交换一些块，但是没有足够的空间来完成操作。我猜这可能是由SSD和MEM层都归因的。您尝试过这个属性吗？
alluxio.worker.tieredstore.free.ahead.bytes这可以帮助我们确定由于存储空间不足而导致的交换是否失败。looks like alluxio worker is trying to move/swap some blocks but there is no enough space to finish the operation. I guess it might be caused by both the ssd and mem tiers are full. Have you tried this property?
alluxio.worker.tieredstore.free.ahead.bytesThis can help us determine whether the swap failed due to insufficient storage space.