 react by writing some of its filled byte arrays to the worker’s local filesystem. After the content of a byte array is written to disk, it can be reused to process more data. Reading data back into memory is as simple as reading the binary data from the local filesystem. The following figure illustrates Flink’s memory management.</p>
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<img src="/img/blog/joins-memmgmt.png" style="width:90%;margin:15px">
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<p>This active memory management makes Flink extremely robust for processing very 