- Oct 20, 2020
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Alberto Miranda authored
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- Jul 28, 2020
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The `ChunkStorage` backend class on the daemon was throwing `system_errors` without being caught, crashing the server in the process. `ChunkStorage` now uses a designated error class for errors that might occur. In addition the dependency to Argobots was removed which was used to trigger `ABT_eventuals`, laying ground work for future non-Argobots IO implementations. Further, the whole class was refactored for consistency and failure resistance. A new class `ChunkOperation` is introduced which wraps Argobots' IO task operations which allows the removal of IO queue specific code within RPC handlers, i.e., read and write handlers. The idea is to separate eventuals, tasks and their arguments from handler logic into a designated class. Therefore, an object of an inherited class of `ChunkOperation` is instantiated within the handlers that drives all IO tasks. The corresponding code was added to the read and write RPC handlers. Note, `ChunkOperation` is not thread-safe and is supposed to be called by a single thread. In addition, truncate was reworked for error handling (it crashed the server on error) and that it uses the IO queue as well since truncate causes a write operation and should not overtake IO tasks in the queue. The chunk stat rpc handler was refactored for error handling and to use error codes as well. Further minor changes: - dead chunk stat code has been removed - some namespaces were missing: `gkfs::rpc` - more flexible handler cleanup and response code - fixed a bug where the chunk dir wasn't removed when the metadata didn't exist on the same node
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- Apr 18, 2019
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Tommaso Tocci authored
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- Mar 05, 2019
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Tommaso Tocci authored
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- Oct 29, 2018
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Tommaso Tocci authored
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- Oct 28, 2018
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Tommaso Tocci authored
margo, argobots and mercury have been updated. The abt-snoozer dep required by margo it is not needed anymore. RocksDB has been also updated to the lastest release
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- May 09, 2018
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Tommaso Tocci authored
Acknowledge the main thread that the IO operation had terminate before to actually close the file. This is a "dirty" fix that waits to be refactored. WARNING: Error on close will not be reported to the client that issued the IO operation.
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Tommaso Tocci authored
Data operation has been grouped under a ChunkStorage class that will manage all the data backend operations. The instance of this object is stored into the ADAFS_DATA sigleton.
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