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Aug 23, 2021 · Databases

Resolving MySQL Error 1135: Can't Create New Thread by Adjusting Systemd TaskMax

The article explains how the MySQL "Can't create a new thread (errno 11)" error on SLES12SP5 was diagnosed as a TaskMax limit issue and resolved by increasing the system‑wide DefaultTasksMax or setting a per‑service TasksMax, followed by a MySQL restart to apply the changes.