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28222db2e4
Seems to help with AT&T fiber router. (Actually it takes a longer delay to make a difference, like 10 seconds, but this patch makes the delay configurable.)
36 lines
1.0 KiB
Bash
36 lines
1.0 KiB
Bash
# This file can be sourced in order to directly run commands on
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# a group of VMs whose IPs are located in ips.txt of the directory in which
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# the command is run.
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pssh() {
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if [ -z "$TAG" ]; then
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>/dev/stderr echo "Variable \$TAG is not set."
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return
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fi
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HOSTFILE="tags/$TAG/ips.txt"
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[ -f $HOSTFILE ] || {
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>/dev/stderr echo "Hostfile $HOSTFILE not found."
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return
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}
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echo "[parallel-ssh] $@"
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# There are some routers that really struggle with the number of TCP
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# connections that we open when deploying large fleets of clusters.
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# We're adding a 1 second delay here, but this can be cranked up if
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# necessary - or down to zero, too.
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sleep ${PSSH_DELAY_PRE-1}
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$(which pssh || which parallel-ssh) -h $HOSTFILE -l ubuntu \
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--par ${PSSH_PARALLEL_CONNECTIONS-100} \
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--timeout 300 \
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-O LogLevel=ERROR \
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-O IdentityFile=tags/$TAG/id_rsa \
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-O UserKnownHostsFile=/dev/null \
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-O StrictHostKeyChecking=no \
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-O ForwardAgent=yes \
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"$@"
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}
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