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Signed-off-by: Mark McLoughlin <markmc@redhat.com>

Currently, when requests are cancelled while executing their final
step, "completion" is handled based on normal stop processing (e.g.
length or stop token), so the abort has no effect. This is typically
not a problem, but when a kv connector is involved it thinks the
request completed successfully rather than being aborted.

This is problematic for disaggregated prefill which will free kv
cache blocks if the request was aborted but not if it completed
successfully—since the cancelled request will never be sent to
the decode side, kv cache blocks remain pinned until the fall-back
timeout expires. The problem is exacerbated when many requests
are cancelled and/or there are large prefills whose forward pass
takes a long time (since the window is bigger).

This PR fixes the problem by processing pending aborts
immediately prior to processing model output each step; we process
only aborts, not new requests, since it's preferable for latency to
process model outputs before new incoming requests.

Fixes #26400.
Signed-off-by: Nick Hill <nhill@redhat.com>

Signed-off-by: NickLucche <nlucches@redhat.com>
Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk>

Signed-off-by: angelayi <yiangela7@gmail.com>

Signed-off-by: Andrew Xia <axia@fb.com>
Signed-off-by: Andrew Xia <axia@meta.com>
Co-authored-by: Andrew Xia <axia@fb.com>

Signed-off-by: Mark McLoughlin <markmc@redhat.com>

Signed-off-by: Alec Solder <alecs@fb.com>
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Co-authored-by: Alec Solder <alecs@fb.com>
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Signed-off-by: yiliu30 <yi4.liu@intel.com>

Signed-off-by: Max Hu <hyoung2991@gmail.com>
Signed-off-by: Max Hu <maxhu@nvidia.com>
Co-authored-by: Max Hu <maxhu@nvidia.com>

Signed-off-by: ZhiweiYan-96 <zhiwei.yan@amd.com>

Signed-off-by: Shai Trinczer <strinczer@icloud.com>
Signed-off-by: strinczer <strinczer@icloud.com>

Signed-off-by: Andy Xie <andy.xning@gmail.com>

Signed-off-by: Ming Yang <minos.future@gmail.com>

Signed-off-by: Alec Solder <alecs@fb.com>
Signed-off-by: Alec S <10566873+alecsolder@users.noreply.github.com>
Co-authored-by: Alec Solder <alecs@fb.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: 22quinn <33176974+22quinn@users.noreply.github.com>

Signed-off-by: Yanan Cao <gmagogsfm@gmail.com>

[Frontend][Model] Add 'float16' to possible mamba cache dtype values, override mamba SSM cache dtype value for NemotronH (#29978)
Signed-off-by: amitz-nv <203509407+amitz-nv@users.noreply.github.com>

Signed-off-by: Jingchun Gao <gaojingchun1@huawei.com>
Signed-off-by: Jingchun Gao <63247409+gjc0824@users.noreply.github.com>
Co-authored-by: Jingchun Gao <gaojingchun1@huawei.com>

Signed-off-by: Laith Sakka <lsakka@meta.com>

Signed-off-by: QiuChunshuo <qiuchunshuo@huawei.com>
Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk>

Signed-off-by: hdlj-h <hubert@hcompany.ai>

Signed-off-by: Alexander Matveev <amatveev@redhat.com>

Signed-off-by: Laith Sakka <lsakka@meta.com>

Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>

[Bugfix] Missing tokens in `return_token_ids` when tool parsers is enabled in streaming mode (#29074)
Signed-off-by: Peng-YM <1048217874pengym@gmail.com>

Signed-off-by: Che Ruan <cr623@ic.ac.uk>
Signed-off-by: mengxingkongzhouhan <117415539+mengxingkongzhouhan@users.noreply.github.com>
Signed-off-by: Mercykid-bash <ruanche0218@gmail.com>
Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
Co-authored-by: Che Ruan <cr623@ic.ac.uk>
Co-authored-by: mengxingkongzhouhan <117415539+mengxingkongzhouhan@users.noreply.github.com>
Co-authored-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

[KVConnector] Remove v0-related kv connector components such as kv pipe and kv lookup buffer (#29705)
Signed-off-by: KuntaiDu <kuntai@uchicago.edu>

Signed-off-by: Jee Jee Li <pandaleefree@gmail.com>

Signed-off-by: taoyun <1069423820@qq.com>
Signed-off-by: Cyrus Leung <cyrus.tl.leung@gmail.com>
Co-authored-by: Cyrus Leung <cyrus.tl.leung@gmail.com>

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Signed-off-by: Woosuk Kwon <woosuk.kwon@berkeley.edu>

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Signed-off-by: Yongtao Huang <yongtaoh2022@gmail.com>

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

Signed-off-by: wang.yuqi <noooop@126.com>
Signed-off-by: wang.yuqi <yuqi.wang@daocloud.io>
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Signed-off-by: chaunceyjiang <chaunceyjiang@gmail.com>
Signed-off-by: Chauncey <chaunceyjiang@gmail.com>
Co-authored-by: Cyrus Leung <cyrus.tl.leung@gmail.com>

Signed-off-by: Andreas Karatzas <akaratza@amd.com>

Signed-off-by: Noa Neria <noa@run.ai>

Signed-off-by: Tianchen Ding <dtcccc@linux.alibaba.com>
Signed-off-by: dtc <dtcccc@linux.alibaba.com>
Co-authored-by: Nicolò Lucchesi <nicolo.lucchesi@gmail.com>

Signed-off-by: arpitkh101 <arpit5khandelwal@gmail.com>
Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk>