even when (v 2.7.0) ran on the box where the server is, so unlikely to be network issue or from my laptop (v 2.9.3) with ok but wifi with a weakish signal to the access point: $> ( set -e; for s in {1..100}; do rm -rf fbirn_phaseIII ; git clone http://datasets.datalad.org/nidm/fbirn_phaseIII/.git; done; ) Cloning into 'fbirn_phaseIII'... Checking connectivity... done. Cloning into 'fbirn_phaseIII'... error: Request for d53302dfc7ad13b786923927021039d21a10d5bd aborted error: Unable to find d53302dfc7ad13b786923927021039d21a10d5bd under http://datasets.datalad.org/nidm/fbirn_phaseIII/.git Cannot obtain needed tree d53302dfc7ad13b786923927021039d21a10d5bd while processing commit 22dd4c49417cad6f4082ac2aebef45da8b6e473d. error: fetch failed. even if I build fresh 2.10.0, discovered that we can trace now CURL calls $> export PATH=$HOME/proj/misc/git:$PATH $> git version git version 2.10.0 $> ( set -e; for s in {1..100}; do rm -rf fbirn_phaseIII ; GIT_TRACE_CURL=/tmp/git-trace-curl-failed.log git clone http://datasets.datalad.org/nidm/fbirn_phaseIII/.git && mv /tmp/git-trace-curl-failed.log /tmp/git-trace-curl-good.log || exit 1; done; ) Cloning into 'fbirn_phaseIII'... warning: templates not found /home/yoh/share/git-core/templates ... a few more ... Cloning into 'fbirn_phaseIII'... warning: templates not found /home/yoh/share/git-core/templates error: Request for d53302dfc7ad13b786923927021039d21a10d5bd aborted error: Unable to find d53302dfc7ad13b786923927021039d21a10d5bd under http://datasets.datalad.org/nidm/fbirn_phaseIII/.git Cannot obtain needed tree d53302dfc7ad13b786923927021039d21a10d5bd while processing commit 22dd4c49417cad6f4082ac2aebef45da8b6e473d. error: fetch failed. ( set -e; for s in {1..100}; do; rm -rf fbirn_phaseIII; GIT_TRACE_CURL= git ) 18.70s user 8.01s system 34% cpu 1:16.84 total NB - note that it is d53302dfc7ad13b786923927021039d21a10d5bd all the time! - that one corresponds to a tree $> git show d53302dfc7ad13b786923927021039d21a10d5bd tree d53302dfc7ad13b786923927021039d21a10d5bd 1ec/ da9/ - I do not see that object being reported as failed to be found on the server: $> grep d5/3302dfc7ad13b786923927021039d21a10d5bd /var/log/apache2/datasets.datalad.org-error.log $> grep d5/3302dfc7ad13b786923927021039d21a10d5bd /var/log/apache2/datasets.datalad.org-access.log 129.170.31.34 - - [09/Sep/2016:14:14:25 -0400] "GET /nidm/fbirn_phaseIII/.git/objects/d5/3302dfc7ad13b786923927021039d21a10d5bd HTTP/1.1" 200 72 ... - and the logs say that only "good" run had it requested: $> zgrep 3302dfc7ad13b786923927021039d21a10d5bd git-trace-curl-*.log.gz git-trace-curl-good.log.gz:18:09:13.749268 http.c:517 => Send header: GET /nidm/fbirn_phaseIII/.git/objects/d5/3302dfc7ad13b786923927021039d21a10d5bd HTTP/1.1 and here are those two GIT_TRACE_CURL traces from good and bad runs -- may be someone with a better clue could figure it out or any other information I should provide to help pin point why that "request for d5... aborted" ;) http://www.onerussian.com/tmp/git-trace-curl-good.log.gz http://www.onerussian.com/tmp/git-trace-curl-failed.log.gz Thanks in advance and please CC me in replies -- Yaroslav O. Halchenko Center for Open Neuroscience http://centerforopenneuroscience.org Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755 Phone: +1 (603) 646-9834 Fax: +1 (603) 646-1419 WWW: http://www.linkedin.com/in/yarik