I've successfully run h2o from R on a linux machine and wanted to install it in Windows too. h2o will not initialise for me. The full output is pasted below but the key seems to be the line
[1] "Failed to connect to 127.0.0.1 port 54321: Connection refused"
curl: (1) Protocol "'http" not supported or disabled in libcurl
Judging from this and this experience it might be something to do with single quotes v double quotes somewhere; but this seems unlikely because then no-one would be able to get h2o / R / Windows combination working and I gather that some people are. On the other hand, this question seems to suggest the problem will be that my curl installation may not have ssl enabled. So I downloaded curl from scratch from this wizard as recommended on the h2o page, selecting the 64 bit version, generic, and selected the version with both SSL and SSH enabled; downloaded it and added the folder it ended up in to my Windows PATH. But no difference.
I've just noticed my Java runtime environment is old and will update that as well. But on the face of it it's not obvious that that could be the problem.
Any suggestions welcomed.
> library(h2o)
> h2o.init()
H2O is not running yet, starting it now...
Note: In case of errors look at the following log files:
C:\Users\PETERE~1\AppData\Local\Temp\Rtmpa6G3WA/h2o_Peter_Ellis_started_from_r.out
C:\Users\PETERE~1\AppData\Local\Temp\Rtmpa6G3WA/h2o_Peter_Ellis_started_from_r.err
java version "1.7.0_75"
Java(TM) SE Runtime Environment (build 1.7.0_75-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.75-b04, mixed mode)
............................................................
ERROR: Unknown argument (Ellis_cns773)
Usage: java [-Xmx<size>] -jar h2o.jar [options]
(Note that every option has a default and is optional.)
-h | -help
Print this help.
-version
Print version info and exit.
-name <h2oCloudName>
Cloud name used for discovery of other nodes.
Nodes with the same cloud name will form an H2O cloud
(also known as an H2O cluster).
-flatfile <flatFileName>
Configuration file explicitly listing H2O cloud node members.
-ip <ipAddressOfNode>
IP address of this node.
-port <port>
Port number for this node (note: port+1 is also used).
(The default port is 0.)
-network <IPv4network1Specification>[,<IPv4network2Specification> ...]
The IP address discovery code will bind to the first interface
that matches one of the networks in the comma-separated list.
Use instead of -ip when a broad range of addresses is legal.
(Example network specification: '10.1.2.0/24' allows 256 legal
possibilities.)
-ice_root <fileSystemPath>
The directory where H2O spills temporary data to disk.
-log_dir <fileSystemPath>
The directory where H2O writes logs to disk.
(This usually has a good default that you need not change.)
-log_level <TRACE,DEBUG,INFO,WARN,ERRR,FATAL>
Write messages at this logging level, or above. Default is INFO.
-flow_dir <server side directory or HDFS directory>
The directory where H2O stores saved flows.
(The default is 'C:\Users\Peter Ellis\h2oflows'.)
-nthreads <#threads>
Maximum number of threads in the low priority batch-work queue.
(The default is 99.)
-client
Launch H2O node in client mode.
Cloud formation behavior:
New H2O nodes join together to form a cloud at startup time.
Once a cloud is given work to perform, it locks out new members
from joining.
Examples:
Start an H2O node with 4GB of memory and a default cloud name:
$ java -Xmx4g -jar h2o.jar
Start an H2O node with 6GB of memory and a specify the cloud name:
$ java -Xmx6g -jar h2o.jar -name MyCloud
Start an H2O cloud with three 2GB nodes and a default cloud name:
$ java -Xmx2g -jar h2o.jar &
$ java -Xmx2g -jar h2o.jar &
$ java -Xmx2g -jar h2o.jar &
[1] "127.0.0.1"
[1] 54321
[1] TRUE
[1] -1
[1] "Failed to connect to 127.0.0.1 port 54321: Connection refused"
curl: (1) Protocol "'http" not supported or disabled in libcurl
[1] 1
Error in h2o.init() : H2O failed to start, stopping execution.
In addition: Warning message:
running command 'curl 'http://localhost:54321'' had status 1
> sessionInfo()
R version 3.2.3 (2015-12-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1
locale:
[1] LC_COLLATE=English_New Zealand.1252 LC_CTYPE=English_New Zealand.1252 LC_MONETARY=English_New Zealand.1252
[4] LC_NUMERIC=C LC_TIME=English_New Zealand.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] h2o_3.6.0.8 statmod_1.4.22
loaded via a namespace (and not attached):
[1] tools_3.2.3 RCurl_1.95-4.7 jsonlite_0.9.19 bitops_1.0-6
