com.yahoo.vespa.model.admin.Logserver Maven / Gradle / Ivy
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.admin;
import com.yahoo.config.model.deploy.DeployState;
import com.yahoo.config.model.producer.TreeConfigProducer;
import com.yahoo.vespa.model.AbstractService;
import com.yahoo.vespa.model.PortAllocBridge;
import java.util.Optional;
/**
* Represents the Logserver. There is exactly one logserver in a Vespa system.
*
* @author gjoranv
* @author bjorncs
*/
public class Logserver extends AbstractService {
private static final String logArchiveDir = "$ROOT/logs/vespa/logarchive";
private String compressionType = "gzip";
public Logserver(TreeConfigProducer parent) {
super(parent, "logserver");
portsMeta.on(0).tag("logtp").tag("rpc");
portsMeta.on(1).tag("unused");
portsMeta.on(2).tag("unused");
portsMeta.on(3).tag("unused");
setProp("clustertype", "admin");
setProp("clustername", "admin");
}
@Override
public void initService(DeployState deployState) {
super.initService(deployState);
// TODO Vespa 9: Change default to zstd everywhere
this.compressionType = deployState.isHosted()
? deployState.featureFlags().logFileCompressionAlgorithm("zstd")
: deployState.featureFlags().logFileCompressionAlgorithm("gzip");
}
/**
* @return the startup command for the logserver
*/
@Override
public Optional getStartupCommand() {
return Optional.of("exec $ROOT/bin/vespa-logserver-start " + getMyJVMArgs() + " " + getJvmOptions());
}
/** Returns the jvm args to be used by the logserver. */
private String getMyJVMArgs() {
StringBuilder sb = new StringBuilder();
sb.append("--add-opens=java.base/java.io=ALL-UNNAMED");
sb.append(" ");
sb.append("-Dlogserver.rpcListenPort=").append(getRelativePort(0));
sb.append(" ");
sb.append("-Dlogserver.logarchive.dir=" + logArchiveDir);
sb.append(" ");
sb.append("-Dlogserver.logarchive.compression=" + compressionType);
return sb.toString();
}
/** Returns the desired base port for this service. */
public int getWantedPort() {
return 19080;
}
/**
* The desired base port is the only allowed base port.
*
* @return 'true' always
*/
public boolean requiresWantedPort() {
return true; // TODO Support dynamic port allocation for logserver
}
/** Returns the number of ports needed by the logserver. */
public int getPortCount() {
return 4;
}
@Override
public void allocatePorts(int start, PortAllocBridge from) {
int port = (start == 0) ? getWantedPort() : start;
from.requirePort(port++, "rpc");
from.requirePort(port++, "unused/1");
from.requirePort(port++, "unused/2");
from.requirePort(port++, "unused/3");
}
}