[Bug]: job launch problem 2.75.0

[aprochko]

What happened?

Hi,

we have several dataflow jobs which are stucked after the start after updating to 2.75.0

The job is able to start, but is not able to process the records correctly and goes to 100% CPU load, then stops doing any progress.

There are no logs, only increased amount of messages likes

INFO 2026-07-16T16:35:59.254244700Z [213.238s][info][gc,phases ] GC(120) Post Compact 2.382ms
INFO 2026-07-16T16:35:59.254234010Z [213.235s][info][gc,phases,start] GC(120) Post Compact
INFO 2026-07-16T16:35:59.254230210Z [213.235s][info][gc,phases ] GC(120) Compaction Phase 248.772ms
INFO 2026-07-16T16:35:59.254226800Z [212.986s][info][gc,phases,start] GC(120) Compaction Phase
INFO 2026-07-16T16:35:59.254223760Z [212.986s][info][gc,phases ] GC(120) Adjust Pointers 518.781ms
INFO 2026-07-16T16:35:59.254220850Z [212.467s][info][gc,phases,start] GC(120) Adjust Pointers
INFO 2026-07-16T16:35:59.254216840Z [212.467s][info][gc,phases ] GC(120) Forward 71.019ms
INFO 2026-07-16T16:35:59.254213710Z [212.396s][info][gc,phases,start] GC(120) Forward
INFO 2026-07-16T16:35:59.254191910Z [212.396s][info][gc,phases ] GC(120) Summary Phase 0.024ms
INFO 2026-07-16T16:35:59.254188350Z [212.396s][info][gc,phases,start] GC(120) Summary Phase
INFO 2026-07-16T16:35:59.254183520Z [212.396s][info][gc,phases ] GC(120) Marking Phase 945.528ms
INFO 2026-07-16T16:35:59.254179840Z [211.451s][info][gc,phases,start] GC(120) Marking Phase
INFO 2026-07-16T16:35:59.254177050Z [211.451s][info][gc,start ] GC(120) Pause Full (Allocation Failure)
INFO 2026-07-16T16:35:59.254174130Z [211.231s][info][gc,cpu ] GC(119) User=3.41s Sys=0.01s Real=1.75s
INFO 2026-07-16T16:35:59.254171130Z [211.231s][info][gc ] GC(119) Pause Full (Allocation Failure) 1777M->1512M(2121M) 1750.276ms
INFO 2026-07-16T16:35:59.254168630Z [211.231s][info][gc,metaspace ] GC(119) Metaspace: 108557K(109504K)->108557K(109504K) NonClass: 98747K(99200K)->98747K(99200K) Class: 9810K(10304K)->9810K(10304K)
INFO 2026-07-16T16:35:59.254165700Z [211.231s][info][gc,heap ] GC(119) ParOldGen: 1549115K(1629184K)->1549047K(1629184K)
INFO 2026-07-16T16:35:59.254162980Z [211.231s][info][gc,heap ] GC(119) PSYoungGen: 271360K(542720K)->0K(542720K) Eden: 271360K(271360K)->0K(271360K) From: 0K(271360K)->0K(271360K)
INFO 2026-07-16T16:35:59.254160200Z [211.231s][info][gc,phases ] GC(119) Post Compact 2.306ms
INFO 2026-07-16T16:35:59.254156890Z [211.228s][info][gc,phases,start] GC(119) Post Compact
INFO 2026-07-16T16:35:59.254153680Z [211.228s][info][gc,phases ] GC(119) Compaction Phase 236.062ms
INFO 2026-07-16T16:35:59.254147580Z [210.992s][info][gc,phases,start] GC(119) Compaction Phase
INFO 2026-07-16T16:35:59.251831950Z [210.992s][info][gc,phases ] GC(119) Adjust Pointers 519.856ms
INFO 2026-07-16T16:35:59.251829300Z [210.472s][info][gc,phases,start] GC(119) Adjust Pointers
INFO 2026-07-16T16:35:59.251826350Z [210.472s][info][gc,phases ] GC(119) Forward 63.422ms

Does anyone else have such an issues? We have them in 3 / 10 jobs.

Issue Priority

Priority: 2 (default / most bugs should be filed as P2)

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