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Linux 5.14 Improving Its Distributed Lock Manager To Allow Message Re-Transmission

Written by Michael Larabel in Linux Storage on 4 July 2021 at 06:04 AM EDT. Add A Comment

The Linux kernel's Distributed Lock Manager as a general purpose DLM for kernel and user-space applications with cluster computing systems is seeing a useful reliability improvement with Linux 5.14.

The Distributed Lock Manager will now be able to handle message re-transmission so nodes can continue operating when network connections fail and then reconnect. Up to now DLM in this case didn't re-transmit messages and would treat them as lost and would be handled as a node failure.

This message re-transmission work for DLM was led by Red Hat's Alexander Aring. More details on this DLM update for Linux 5.14 via this pull request.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.