[SPARK-2307] SparkUI - storage tab displays incorrect RDDs #1249
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asfgit
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Jun 27, 2014
The issue here is that the `StorageTab` listens for updates from the `StorageStatusListener`, but when a block is kicked out of the cache, `StorageStatusListener` removes it from its list. Thus, there is no way for the `StorageTab` to know whether a block has been dropped. This issue was introduced in #1080, which was itself a bug fix. Here we revert that PR and offer a different fix for the original bug (SPARK-2144). Author: Andrew Or <[email protected]> Closes #1249 from andrewor14/storage-ui-fix and squashes the following commits: af019ce [Andrew Or] Fix SPARK-2307 (cherry picked from commit 21e0f77) Signed-off-by: Patrick Wendell <[email protected]>
asfgit
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Jul 4, 2014
**Problem.** The existing code in `ExecutorPage.scala` requires a linear scan through all the blocks to filter out the uncached ones. Every refresh could be expensive if there are many blocks and many executors. **Solution.** The proper semantics should be the following: `StorageStatusListener` should contain only block statuses that are cached. This means as soon as a block is unpersisted by any mean, its status should be removed. This is reflected in the changes made in `StorageStatusListener.scala`. Further, the `StorageTab` must stop relying on the `StorageStatusListener` changing a dropped block's status to `StorageLevel.NONE` (which no longer happens). This is reflected in the changes made in `StorageTab.scala` and `StorageUtils.scala`. ---------- If you have been following this chain of PRs like pwendell, you will quickly notice that this reverts the changes in #1249, which reverts the changes in #1080. In other words, we are adding back the changes from #1080, and fixing SPARK-2307 on top of those changes. Please ask questions if you are confused. Author: Andrew Or <[email protected]> Closes #1255 from andrewor14/storage-ui-fix-reprise and squashes the following commits: 45416fa [Andrew Or] Merge branch 'master' of github.com:apache/spark into storage-ui-fix-reprise a82ea25 [Andrew Or] Add tests for StorageStatusListener 8773b01 [Andrew Or] Update comment / minor changes 3afde3f [Andrew Or] Correctly report the number of blocks on SparkUI (cherry picked from commit 3894a49) Signed-off-by: Patrick Wendell <[email protected]>
asfgit
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Jul 4, 2014
**Problem.** The existing code in `ExecutorPage.scala` requires a linear scan through all the blocks to filter out the uncached ones. Every refresh could be expensive if there are many blocks and many executors. **Solution.** The proper semantics should be the following: `StorageStatusListener` should contain only block statuses that are cached. This means as soon as a block is unpersisted by any mean, its status should be removed. This is reflected in the changes made in `StorageStatusListener.scala`. Further, the `StorageTab` must stop relying on the `StorageStatusListener` changing a dropped block's status to `StorageLevel.NONE` (which no longer happens). This is reflected in the changes made in `StorageTab.scala` and `StorageUtils.scala`. ---------- If you have been following this chain of PRs like pwendell, you will quickly notice that this reverts the changes in #1249, which reverts the changes in #1080. In other words, we are adding back the changes from #1080, and fixing SPARK-2307 on top of those changes. Please ask questions if you are confused. Author: Andrew Or <[email protected]> Closes #1255 from andrewor14/storage-ui-fix-reprise and squashes the following commits: 45416fa [Andrew Or] Merge branch 'master' of github.com:apache/spark into storage-ui-fix-reprise a82ea25 [Andrew Or] Add tests for StorageStatusListener 8773b01 [Andrew Or] Update comment / minor changes 3afde3f [Andrew Or] Correctly report the number of blocks on SparkUI
xiliu82
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Sep 4, 2014
The issue here is that the `StorageTab` listens for updates from the `StorageStatusListener`, but when a block is kicked out of the cache, `StorageStatusListener` removes it from its list. Thus, there is no way for the `StorageTab` to know whether a block has been dropped. This issue was introduced in apache#1080, which was itself a bug fix. Here we revert that PR and offer a different fix for the original bug (SPARK-2144). Author: Andrew Or <[email protected]> Closes apache#1249 from andrewor14/storage-ui-fix and squashes the following commits: af019ce [Andrew Or] Fix SPARK-2307
xiliu82
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Sep 4, 2014
**Problem.** The existing code in `ExecutorPage.scala` requires a linear scan through all the blocks to filter out the uncached ones. Every refresh could be expensive if there are many blocks and many executors. **Solution.** The proper semantics should be the following: `StorageStatusListener` should contain only block statuses that are cached. This means as soon as a block is unpersisted by any mean, its status should be removed. This is reflected in the changes made in `StorageStatusListener.scala`. Further, the `StorageTab` must stop relying on the `StorageStatusListener` changing a dropped block's status to `StorageLevel.NONE` (which no longer happens). This is reflected in the changes made in `StorageTab.scala` and `StorageUtils.scala`. ---------- If you have been following this chain of PRs like pwendell, you will quickly notice that this reverts the changes in apache#1249, which reverts the changes in apache#1080. In other words, we are adding back the changes from apache#1080, and fixing SPARK-2307 on top of those changes. Please ask questions if you are confused. Author: Andrew Or <[email protected]> Closes apache#1255 from andrewor14/storage-ui-fix-reprise and squashes the following commits: 45416fa [Andrew Or] Merge branch 'master' of github.com:apache/spark into storage-ui-fix-reprise a82ea25 [Andrew Or] Add tests for StorageStatusListener 8773b01 [Andrew Or] Update comment / minor changes 3afde3f [Andrew Or] Correctly report the number of blocks on SparkUI
wangyum
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May 26, 2023
…ject expression is not deterministic (#1249)
mapr-devops
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May 8, 2025
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The issue here is that the
StorageTablistens for updates from theStorageStatusListener, but when a block is kicked out of the cache,StorageStatusListenerremoves it from its list. Thus, there is no way for theStorageTabto know whether a block has been dropped.This issue was introduced in #1080, which was itself a bug fix. Here we revert that PR and offer a different fix for the original bug (SPARK-2144).