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b29cb4ca82
The shutdown script should not abort if it can't write a log - it should continue to try and shut down impala. The entrypoint script should abort with an explicit error if the log directory isn't writable by the current user. Change-Id: If32d6eef75422b51f8877478bbfb1a709c02f756 Reviewed-on: http://gerrit.cloudera.org:8080/16237 Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Reviewed-by: Attila Jeges <attilaj@cloudera.com> Reviewed-by: Andrew Sherman <asherman@cloudera.com>
61 lines
2.0 KiB
Bash
Executable File
61 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# This script will send a signal to all impalad processes as identified by their name to
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# initiate a graceful shutdown. It will then wait for a configurable amount time to allow
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# the daemons to shutdown. The script will not forcefully terminate them, which is left to
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# the orchestration framework.
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set -euxo pipefail
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export IMPALA_HOME=${IMPALA_HOME:-"/opt/impala"}
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LOG_FILE="$IMPALA_HOME/logs/shutdown.log"
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function LOG() {
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# IMPALA-10006: append to LOG_FILE if possible, but don't fail if the log file isn't
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# writable.
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echo $* | tee -a $LOG_FILE || true
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}
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# Default grace timeout is the same as the default for Impala (-shutdown_grace_period_s),
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# plus some additional safety buffer.
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GRACE_TIMEOUT=$((120 + 10))
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if [[ $# -ge 1 ]]; then
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GRACE_TIMEOUT=$1
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fi
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LOG "Initiating graceful shutdown."
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for pid in $(pgrep impalad); do
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LOG "Sending signal to daemon with pid $pid"
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kill -SIGRTMIN $pid
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done
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LOG "Waiting for daemons to exit, up to $GRACE_TIMEOUT s."
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for ((i=0; i<$GRACE_TIMEOUT; ++i)); do
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pids=$(pgrep impalad || true)
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if [[ -z "$pids" ]]; then
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LOG "All daemons have exited after $i s."
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break
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else
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LOG "Daemons still running after $i s: $pids"
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fi
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sleep 1
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done
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LOG "Graceful shutdown process complete."
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