I tried to add my own logs to qemu by using fprintf(stdout, "my own log") and qemu_log("my own log"), and then compiled the qemu from source code and started a VM by the following command:
/usr/bin/qemu-system-x86_64 \
-D /home/VM1-qemu-log.txt \
-d cpu_reset \
-enable-kvm \
-m 4096 \
-nic user,model=virtio \
-drive file=/var/lib/libvirt/images/VM1.qcow2,media=disk,if=virtio \
-nographic
There are CPU-related logs in VM1-qemu-log.txt, however, I cannot find where "my own log" is. Can anyone advise? Thanks!
qemu_log("my own log") works, I added it to the wrong place(i.e., beginning of the 'main()' in 'qemu/vl.c', where the logging has not been setup yet). By adding it to another place(e.g. in virtio_blk_get_request() under qemu/hw/block/virtio-blk.c), I will be able to see "my own log" in /home/VM1-qemu-log.txt. The VM is created by:
/usr/bin/qemu-system-x86_64 \
-D /home/VM1-qemu-log.txt \
-enable-kvm \
-m 4096 \
-nic user,model=virtio \
-drive file=/var/lib/libvirt/images/VM1.qcow2,media=disk,if=virtio \
-nographic
Related
I have a script for building a project that I need to upgrade from using configure to cmake. The original configure command is
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
--with-clang \
--prefix=$PREFIX \
--libdir=$PREFIX/lib${LIBDIRSUFFIX} \
--incdir=$PREFIX/include \
--mandir=$PREFIX/man/man1 \
--etcdir=$PREFIX/etc/root \
--docdir=/usr/doc/$PRGNAM-$VERSION \
--enable-roofit \
--enable-unuran \
--disable-builtin-freetype \
--disable-builtin-ftgl \
--disable-builtin-glew \
--disable-builtin-pcre \
--disable-builtin-zlib \
--disable-builtin-lzma \
$GSL_FLAGS \
$FFTW_FLAGS \
$QT_FLAGS \
--enable-shared \
--build=$ARCH-slackware-linux
I am not familiar enough with cmake to know how to do the equivalent. I would prefer a command line option but am open to modifying the CMakeLists.txt file as well.
When I train a DNN network using CaffeOnSpark with 2 Spark executors with Ethernet connection, I'm getting an error. I run the job as the example on the https://github.com/yahoo/CaffeOnSpark/wiki/GetStarted_yarn
export SPARK_WORKER_INSTANCES=2
export DEVICES=1
hadoop fs -rm -f hdfs:///mnist.model
hadoop fs -rm -r -f hdfs:///mnist_features_result
spark-submit --master yarn --deploy-mode cluster \
--num-executors 2 \
--files ${CAFFE_ON_SPARK}/data/lenet_memory_solver.prototxt,${CAFFE_ON_SPARK}/data/lenet_memory_train_test.prototxt \
--conf spark.driver.extraLibraryPath="${LD_LIBRARY_PATH}" \
--conf spark.executorEnv.LD_LIBRARY_PATH="${LD_LIBRARY_PATH}" \
--class com.yahoo.ml.caffe.CaffeOnSpark \
${CAFFE_ON_SPARK}/caffe-grid/target/caffe-grid-0.1-SNAPSHOT-jar-with-dependencies.jar \
-train \
-features accuracy,loss -label label \
-conf lenet_memory_solver.prototxt \
-devices 1 \
-connection ethernet \
-model hdfs:///mnist.model \
-output hdfs:///mnist_features_result
Here is the error I'm getting.
When I see the log of the datanode, the error is as below.
Log of datanode
Thank you very much for you answer.
I would like install 3 KVM guests automatically using kickstart.
I have no problem installing it manually using virt-install command.
virt-install \
-n dal \
-r 2048 \
--vcpus=1 \
--os-variant=rhel6 \
--accelerate \
--network bridge:br1,model=virtio \
--disk path=/home/dal_internal,size=128 --force \
--location="/home/kvm.iso" \
--nographics \
--extra-args="ks=file:/dal_kick.cfg console=tty0 console=ttyS0,115200n8 serial" \
--initrd-inject=/opt/dal_kick.cfg \
--virt-type kvm
I have 3 scripts like the one above - i would like to install all 3 at the same time, how can i disable the console? or running it in the background?
Based on virt-install man page:
http://www.tin.org/bin/man.cgi?section=1&topic=virt-install
--noautoconsole
Don't automatically try to connect to the guest console. The
default behaviour is to launch virt-viewer(1) to display the
graphical console, or to run the "virsh" "console" command to
display the text console. Use of this parameter will disable this
behaviour.
virt-install will connect console automatically. If you don't want,
just simply add --noautoconsole in your cmd like
virt-install \
-n dal \
-r 2048 \
--vcpus=1 \
--quiet \
--noautoconsole \
...... other options
We faced the same problem and at the end the only way we found was to create new threads with the &.
We also include the quiet option, not mandatory.
---quiet option (Only print fatal error messages).
virt-install \
-n dal \
-r 2048 \
--vcpus=1 \
--quiet \
--os-variant=rhel6 \
--accelerate \
--network bridge:br1,model=virtio \
--disk path=/home/dal_internal,size=128 --force \
--location="/home/kvm.iso" \
--nographics \
--extra-args="ks=file:/dal_kick.cfg console=tty0 console=ttyS0,115200n8 serial" \
--initrd-inject=/opt/dal_kick.cfg \
--virt-type kvm &
I know this is kind of old, but I wanted to share my thoughts.
I ran into the same problem, but due to the environment we work in, we need to use sudo with a password (compliance reasons). The solution I came up with was to use timeout instead of &. When we fork it right away, it would hang due to the sudo prompt never appearing. So using timeout with your example above: (we obviously did timeout 10 sudo virt-instal...)
timeout 15 virt-install \
-n dal \
-r 2048 \
--vcpus=1 \
--quiet \
--os-variant=rhel6 \
--accelerate \
--network bridge:br1,model=virtio \
--disk path=/home/dal_internal,size=128 --force \
--location="/home/kvm.iso" \
--nographics \
--extra-args="ks=file:/dal_kick.cfg console=tty0 console=ttyS0,115200n8 serial" \
--initrd-inject=/opt/dal_kick.cfg \
--virt-type kvm
This allowed us to interact with our sudo prompt and send the password over, and then start the build. The timeout doesnt kill the process, it will continue on and so can your script.
Removed the following files by mistake and as a result yum stopped working.
Any idea what rpms exactly we need to re-install?
./abrt_exception_handler.pyo
./abrt_exception_handler.pyc
./abrt.pth
./abrt_exception_handler.py
./yum/sqlitesack.pyo
./yum/rpmsack.pyo
./yum/packages.pyo
./yum/misc.pyo
./yum/metalink.pyo
./yum/__init__.pyo
./yum/history.pyo
./yum/depsolve.pyo
./rpmUtils/miscutils.pyo
./yum/yumRepo.pyo
./yum/yumRepo.pyc
./yum/yumRepo.py
./yum/update_md.pyo
./yum/update_md.pyc
./yum/update_md.py
./yum/transactioninfo.pyo
./yum/transactioninfo.pyc
./yum/transactioninfo.py
./yum/sqlutils.pyo
./yum/sqlutils.pyc
./yum/sqlutils.py
Ok, found the solution. Since I don't know exactly which python modules belongs to which rpm, I did a re-install of most of the dependent rpms. Here it goes.
#!/bin/bash
for file in \
elfutils-0.152-1.el6.x86_64.rpm \
elfutils-libs-0.152-1.el6.x86_64.rpm \
expat-2.0.1-11.el6_2.x86_64.rpm \
gmp-4.3.1-7.el6_2.2.x86_64.rpm \
libxml2-2.7.6-8.el6_3.4.x86_64.rpm \
libxml2-python-2.7.6-8.el6_3.4.x86_64.rpm \
m2crypto-0.20.2-9.el6.x86_64.rpm \
python-2.6.6-36.el6.x86_64.rpm \
python-iniparse-0.3.1-2.1.el6.noarch.rpm \
python-urlgrabber-3.9.1-8.el6.noarch.rpm \
readline-6.0-4.el6.x86_64.rpm \
rpm-4.8.0-32.el6.x86_64.rpm \
rpm-libs-4.8.0-32.el6.x86_64.rpm \
rpm-python-4.8.0-32.el6.x86_64.rpm \
sqlite-3.6.20-1.el6.x86_64.rpm \
yum-3.2.29-40.el6.centos.noarch.rpm \
yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
do wget http://mirror.centos.org/centos-6/6/os/x86_64/Packages/$file;
done
rpm -Uvh *.rpm --force
Google Analytics's new "Core Reporting API" (version 3.0) "recommend[s] using OAuth 2.0 to authorize requests" (citation). Its documentation, though, is very unclear about how to do that. (It says "When you create your application, you register it with Google" (citation), but does a shell script count as an "application"?? If so, I should register the bash script at the "APIs Console", which doesn't give any guidance on how to do so.) Using Analytics' version 2.3, I run a bash script:
#!/bin/bash
# generates an XML file
googleAuth="$(curl https://www.google.com/accounts/ClientLogin -s \
-d Email=foo \
-d Passwd=bar \
-d accountType=GOOGLE \
-d source=curl-dataFeed-v2 \
-d service=analytics \
| awk /Auth=.*/)"
# ...
feedUri="https://www.google.com/analytics/feeds/data\
?ids=$table\
&start-date=$SD\
&end-date=$ED\
&dimensions=baz\
&metrics=xyzzy\
&prettyprint=true"
# ...
curl $feedUri --silent \
--header "Authorization: GoogleLogin $googleAuth" \
--header "GData-Version: 2" \
| awk # ...
How would I do something like this — a script that grabs whatever login token I need and sends it back — for the new Analytics?
(Incidentally, yes, I realize the results will be JSON, not XML.)
Here is a sample script
googleAuth="$(curl https://www.google.com/accounts/ClientLogin -s \
-d Email=$USER_EMAIL \
-d Passwd=$USER_PASS \
-d accountType=GOOGLE \
-d source=curl-accountFeed-v1 \
-d service=analytics \
| grep "Auth=" | cut -d"=" -f2)"
feedUri="https://www.googleapis.com/analytics/v3/data/ga\
?start-date=$START_DATE\
&end-date=$END_DATE\
&ids=ga:$PROFILE_ID\
&dimensions=ga:userType\
&metrics=ga:users\
&max-results=50\
&prettyprint=false"
curl $feedUri -s --header "Authorization: GoogleLogin auth=$googleAuth"