Why does shared hosting keep hitting memory limits, even after you upgrade? Shared hosting pools CPU and RAM across every account on the same physical server. A plan upgrade within shared hosting usually buys you a higher quota on that shared pool, not a guaranteed, isolated allocation \u2014 so Docker containers still get OOM-killed and pages still load slowly once your actual usage bumps into the pool’s real ceiling. The fix in both cases is the same: move to infrastructure where the resources are exclusively yours.<\/p>\n\n\n\n
When a container exceeds its memory limit, the Linux kernel’s OOM (out-of-memory) killer terminates it \u2014 Docker reports this as exit code 137, and ` A higher shared-hosting tier typically raises your quota on the shared resource pool \u2014 more allowed CPU seconds, a bit more RAM headroom \u2014 but the pool itself is still shared with every other account on that physical server. If the server is busy, your “higher-tier” <\/a>account still competes for the same underlying cores and memory bandwidth as everyone else’s account. This is why a plan upgrade often produces no visible improvement: the bottleneck was never your quota, it was contention for a resource nobody on shared hosting fully controls.<\/p>\n\n\n\ndocker inspect --format='{{.State.OOMKilled}}'<\/code>` on the container confirms it. On a normal server, you’d raise the container’s memory limit or add RAM. On shared hosting, that option is often unavailable or already capped by the hosting account tier itself \u2014 the account has a fixed memory ceiling regardless of what a single container needs, and that ceiling exists precisely because dozens of other accounts share the same physical RAM.<\/p>\n\n\n\n\n
docker inspect --format='{{.State.OOMKilled}}' <container><\/code>` \u2014 exit code 137 alone can also mean a manual kill or an external timeout.<\/li>\n\n\n\ndocker stats<\/code>` to see live memory usage against the container’s limit before it fails.<\/li>\n\n\n\ndmesg | grep -i oom<\/code>` \u2014 a host-level OOM kill (not just a container-level one) is a strong sign the shared account’s overall RAM ceiling, not just Docker’s own settings, is the real constraint.<\/li>\n<\/ul>\n\n\n\nWhy Upgrading Your Shared Hosting Plan Doesn’t Fix Slow Load Times<\/h2>\n\n\n\n