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Posted to commits@lucene.apache.org by ab...@apache.org on 2018/06/07 12:18:36 UTC
[18/18] lucene-solr:jira/solr-12438: SOLR-12438: Improvements to the
call forwarding. RefGuide doc changes.
SOLR-12438: Improvements to the call forwarding. RefGuide doc changes.
Project: http://git-wip-us.apache.org/repos/asf/lucene-solr/repo
Commit: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/53d9d081
Tree: http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/53d9d081
Diff: http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/53d9d081
Branch: refs/heads/jira/solr-12438
Commit: 53d9d081b39afdb6bca02c5e454da2ab1f9a180e
Parents: 3e72481
Author: Andrzej Bialecki <ab...@apache.org>
Authored: Thu Jun 7 14:14:08 2018 +0200
Committer: Andrzej Bialecki <ab...@apache.org>
Committed: Thu Jun 7 14:14:08 2018 +0200
----------------------------------------------------------------------
.../org/apache/solr/core/CoreContainer.java | 20 +-
.../handler/admin/MetricsHistoryHandler.java | 81 ++--
solr/solr-ref-guide/src/metrics-history.adoc | 382 +++++++++++--------
3 files changed, 287 insertions(+), 196 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53d9d081/solr/core/src/java/org/apache/solr/core/CoreContainer.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/core/CoreContainer.java b/solr/core/src/java/org/apache/solr/core/CoreContainer.java
index 5cbcab5..37a660f 100644
--- a/solr/core/src/java/org/apache/solr/core/CoreContainer.java
+++ b/solr/core/src/java/org/apache/solr/core/CoreContainer.java
@@ -739,6 +739,7 @@ public class CoreContainer {
status |= LOAD_COMPLETE | INITIAL_CORE_LOAD_COMPLETE;
}
+ // MetricsHistoryHandler supports both cloud and standalone configs
private void createMetricsHistoryHandler() {
PluginInfo plugin = cfg.getMetricsConfig().getHistoryHandler();
Map<String, Object> initArgs;
@@ -762,8 +763,13 @@ public class CoreContainer {
name = "localhost";
}
cloudManager = null;
- client = new EmbeddedSolrServer(this, CollectionAdminParams.SYSTEM_COLL);
- // enable local metrics
+ client = new EmbeddedSolrServer(this, CollectionAdminParams.SYSTEM_COLL) {
+ @Override
+ public void close() throws IOException {
+ // do nothing - we close the container ourselves
+ }
+ };
+ // enable local metrics unless specifically set otherwise
if (!initArgs.containsKey(MetricsHistoryHandler.ENABLE_NODES_PROP)) {
initArgs.put(MetricsHistoryHandler.ENABLE_NODES_PROP, true);
}
@@ -820,6 +826,12 @@ public class CoreContainer {
ExecutorUtil.shutdownAndAwaitTermination(coreContainerWorkExecutor);
replayUpdatesExecutor.shutdownAndAwaitTermination();
+
+ if (metricsHistoryHandler != null) {
+ IOUtils.closeQuietly(metricsHistoryHandler.getSolrClient());
+ metricsHistoryHandler.close();
+ }
+
if (metricManager != null) {
metricManager.closeReporters(SolrMetricManager.getRegistryName(SolrInfoBean.Group.node));
metricManager.closeReporters(SolrMetricManager.getRegistryName(SolrInfoBean.Group.jvm));
@@ -838,10 +850,6 @@ public class CoreContainer {
} catch (Exception e) {
log.warn("Error removing live node. Continuing to close CoreContainer", e);
}
- if (metricsHistoryHandler != null) {
- IOUtils.closeQuietly(metricsHistoryHandler.getSolrClient());
- metricsHistoryHandler.close();
- }
if (metricManager != null) {
metricManager.closeReporters(SolrMetricManager.getRegistryName(SolrInfoBean.Group.cluster));
}
http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53d9d081/solr/core/src/java/org/apache/solr/handler/admin/MetricsHistoryHandler.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/admin/MetricsHistoryHandler.java b/solr/core/src/java/org/apache/solr/handler/admin/MetricsHistoryHandler.java
index 89731d2..03b545f 100644
--- a/solr/core/src/java/org/apache/solr/handler/admin/MetricsHistoryHandler.java
+++ b/solr/core/src/java/org/apache/solr/handler/admin/MetricsHistoryHandler.java
@@ -24,6 +24,8 @@ import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.IOException;
import java.lang.invoke.MethodHandles;
+import java.net.MalformedURLException;
+import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@@ -46,6 +48,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.atomic.DoubleAdder;
import java.util.function.Function;
+import java.util.stream.Collectors;
import java.util.stream.Stream;
import com.google.common.annotations.VisibleForTesting;
@@ -112,30 +115,32 @@ import static org.apache.solr.common.params.CommonParams.ID;
public class MetricsHistoryHandler extends RequestHandlerBase implements PermissionNameProvider, Closeable {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
- public static final List<String> DEFAULT_CORE_COUNTERS = new ArrayList<String>() {{
- add("QUERY./select.requests");
- add("UPDATE./update.requests");
- }};
- public static final List<String> DEFAULT_CORE_GAUGES = new ArrayList<String>() {{
- add("INDEX.sizeInBytes");
- }};
- public static final List<String> DEFAULT_NODE_GAUGES = new ArrayList<String>() {{
- add("CONTAINER.fs.coreRoot.usableSpace");
- }};
- public static final List<String> DEFAULT_JVM_GAUGES = new ArrayList<String>() {{
- add("memory.heap.used");
- add("os.processCpuLoad");
- add("os.systemLoadAverage");
- }};
+ public static final List<String> DEFAULT_CORE_COUNTERS = new ArrayList<>();
+ public static final List<String> DEFAULT_CORE_GAUGES = new ArrayList<>();
+ public static final List<String> DEFAULT_NODE_GAUGES = new ArrayList<>();
+ public static final List<String> DEFAULT_JVM_GAUGES = new ArrayList<>();
public static final String NUM_SHARDS_KEY = "numShards";
public static final String NUM_REPLICAS_KEY = "numReplicas";
public static final String NUM_NODES_KEY = "numNodes";
- public static final List<String> DEFAULT_COLLECTION_GAUGES = new ArrayList<String>() {{
- add(NUM_SHARDS_KEY);
- add(NUM_REPLICAS_KEY);
- }};
+ public static final List<String> DEFAULT_COLLECTION_GAUGES = new ArrayList<>();
+
+ static {
+ DEFAULT_JVM_GAUGES.add("memory.heap.used");
+ DEFAULT_JVM_GAUGES.add("os.processCpuLoad");
+ DEFAULT_JVM_GAUGES.add("os.systemLoadAverage");
+
+ DEFAULT_NODE_GAUGES.add("CONTAINER.fs.coreRoot.usableSpace");
+
+ DEFAULT_CORE_GAUGES.add("INDEX.sizeInBytes");
+
+ DEFAULT_CORE_COUNTERS.add("QUERY./select.requests");
+ DEFAULT_CORE_COUNTERS.add("UPDATE./update.requests");
+
+ DEFAULT_COLLECTION_GAUGES.add(NUM_SHARDS_KEY);
+ DEFAULT_COLLECTION_GAUGES.add(NUM_REPLICAS_KEY);
+ }
public static final String COLLECT_PERIOD_PROP = "collectPeriod";
public static final String SYNC_PERIOD_PROP = "syncPeriod";
@@ -698,7 +703,8 @@ public class MetricsHistoryHandler extends RequestHandlerBase implements Permiss
List<Pair<String, Long>> lst = factory.list(rows);
lst.forEach(p -> {
SimpleOrderedMap<Object> data = new SimpleOrderedMap<>();
- data.add("lastModified", p.second());
+ // RrdDb always uses seconds - convert here for compatibility
+ data.add("lastModified", TimeUnit.SECONDS.convert(p.second(), TimeUnit.MILLISECONDS));
data.add("node", nodeName);
res.add(p.first(), data);
});
@@ -753,7 +759,7 @@ public class MetricsHistoryHandler extends RequestHandlerBase implements Permiss
rsp.add("success", "ok");
break;
}
- // when using in-memory DBs non-overseer node has no access to overseer DBs
+ // when using in-memory DBs non-overseer node has no access to overseer DBs - in this case
// forward the request to Overseer leader if available
if (!factory.isPersistent()) {
String leader = getOverseerLeader();
@@ -766,7 +772,7 @@ public class MetricsHistoryHandler extends RequestHandlerBase implements Permiss
SimpleOrderedMap<Object> apiState = new SimpleOrderedMap<>();
apiState.add("enableReplicas", enableReplicas);
apiState.add("enableNodes", enableNodes);
- apiState.add("mode", enable ? (factory.isPersistent() ? "index" : "memory") : "disabled");
+ apiState.add("mode", enable ? (factory.isPersistent() ? "index" : "memory") : "inactive");
if (!factory.isPersistent()) {
apiState.add("message", "WARNING: metrics history is not being persisted. Create .system collection to start persisting history.");
}
@@ -775,10 +781,20 @@ public class MetricsHistoryHandler extends RequestHandlerBase implements Permiss
}
private NamedList<Object> handleRemoteRequest(String nodeName, SolrQueryRequest req) {
- String url = Utils.getBaseUrlForNodeName(nodeName, overseerUrlScheme);
+ String baseUrl = Utils.getBaseUrlForNodeName(nodeName, overseerUrlScheme);
+ String url;
+ try {
+ URL u = new URL(baseUrl);
+ u = new URL(u.getProtocol(), u.getHost(), u.getPort(), "/api/cluster/metrics/history");
+ url = u.toString();
+ } catch (MalformedURLException e) {
+ log.warn("Invalid Overseer url '" + baseUrl + "', unable to fetch remote metrics history", e);
+ return null;
+ }
+ // always use javabin
ModifiableSolrParams params = new ModifiableSolrParams(req.getParams());
params.set(CommonParams.WT, "javabin");
- url = url + req.getPath() + "?" + params.toString();
+ url = url + "?" + params.toString();
try {
byte[] data = cloudManager.httpRequest(url, SolrRequest.METHOD.GET, null, null, HttpClientUtil.DEFAULT_CONNECT_TIMEOUT, true);
// response is always a NamedList
@@ -856,18 +872,17 @@ public class MetricsHistoryHandler extends RequestHandlerBase implements Permiss
if (format != Format.GRAPH) {
// add timestamps separately from values
long[] timestamps = fd.getTimestamps();
- str.setLength(0);
- for (int i = 0; i < timestamps.length; i++) {
- if (format == Format.LIST) {
- map.add("timestamps", timestamps[i]);
- } else {
+ if (format == Format.LIST) {
+ // Arrays.asList works only on arrays of Objects
+ map.add("timestamps", Arrays.stream(timestamps).boxed().collect(Collectors.toList()));
+ } else {
+ str.setLength(0);
+ for (int i = 0; i < timestamps.length; i++) {
if (i > 0) {
str.append('\n');
}
str.append(String.valueOf(timestamps[i]));
}
- }
- if (format == Format.STRING) {
map.add("timestamps", str.toString());
}
}
@@ -920,9 +935,7 @@ public class MetricsHistoryHandler extends RequestHandlerBase implements Permiss
values.add(name, str.toString());
break;
case LIST:
- for (int i = 0; i < vals.length; i++) {
- values.add(name, vals[i]);
- }
+ values.add(name, Arrays.stream(vals).boxed().collect(Collectors.toList()));
break;
}
}
http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/53d9d081/solr/solr-ref-guide/src/metrics-history.adoc
----------------------------------------------------------------------
diff --git a/solr/solr-ref-guide/src/metrics-history.adoc b/solr/solr-ref-guide/src/metrics-history.adoc
index 5dc1c3c..e39f66e 100644
--- a/solr/solr-ref-guide/src/metrics-history.adoc
+++ b/solr/solr-ref-guide/src/metrics-history.adoc
@@ -18,15 +18,16 @@
== Design
=== Round-robin databases
-When Solr runs in "cloud" mode it collects long-term history of certain key metrics. This information
-can be used for very simple monitoring and troubleshooting, but also some Solr Cloud components
-(eg. autoscaling) can use this data for making informed decisions based on long-term
-trends of selected metrics.
+Solr collects long-term history of certain key metrics both in SolrCloud and in standalone mode.
+This information can be used for very simple monitoring and troubleshooting, but also some
+Solr Cloud components (eg. autoscaling) can use this data for making informed decisions based on
+long-term trends of selected metrics.
[IMPORTANT]
====
-Metrics history is available ONLY in SolrCloud mode, it's not supported in standalone Solr. Also,
-the `.system` collection must exist if metrics history should be persisted.
+The `.system` collection must exist if metrics history should be persisted. If this collection
+is absent then metrics history will still be collected and kept in memory but it will be lost
+on node restart.
====
This data is maintained as multi-resolution time series, with a fixed total number of data points
@@ -61,14 +62,16 @@ update operations than storing each data point in a separate Solr document. Metr
detailed data from each database, including retrieval of all individual datapoints.
Databases are identified primarily by their corresponding metric registry name, so for databases that
-keep track of aggregated metrics this will be eg. `solr.jvm`, `solr.node`, `solr.collection.gettingstarted`,
-and for databases with non-aggregated metrics this will be eg. `solr.jvm.localhost:8983_solr`,
-`solr.node.localhost:7574_solr`, `solr.core.gettingstarted.shard1.replica_n1`.
+keep track of aggregated metrics this will be eg. `solr.jvm`, `solr.node`, `solr.collection.gettingstarted`.
+For databases with non-aggregated metrics the name consists of the registry name, optionally with a node name
+to identify databases with the same name coming from different nodes. For example, per-node databases are
+name like this: `solr.jvm.localhost:8983_solr`, `solr.node.localhost:7574_solr`, but per-replica names are
+already unique across the cluster so they are named like this: `solr.core.gettingstarted.shard1.replica_n1`.
=== Collected metrics
Currently the following selected metrics are tracked:
-* `solr.core` and `solr.collection` metrics:
+* Non-aggregated `solr.core` and aggregated `solr.collection` metrics:
** `QUERY./select.requests`
** `UPDATE./update.requests`
** `INDEX.sizeInBytes`
@@ -78,6 +81,7 @@ Currently the following selected metrics are tracked:
* `solr.node` metrics:
** `CONTAINER.fs.coreRoot.usableSpace`
** `numNodes` (aggregated, number of live nodes)
+
* `solr.jvm` metrics:
** `memory.heap.used`
** `os.processCpuLoad`
@@ -86,6 +90,10 @@ Currently the following selected metrics are tracked:
Separate databases are created for each of these groups, and each database keeps data for
all metrics listed in that group.
+NOTE: Currently this list is not configurable. Also, if you change this list in the code then
+all existing databases must be first removed from the `.system` collection because RRD4j doesn't allow
+adding new datasources once the database is created.
+
=== SolrRrdBackendFactory
This component is responsible for managing in-memory databases and periodically saving them
to the `.system` collection. If the `.system` collection is not available the updates to the
@@ -101,7 +109,8 @@ collecting and periodically updating the in-memory databases.
This handler also performs aggregation of metrics on per-collection level, and on a cluster level.
By default only these aggregated metrics are tracked - historic data from each node and each replica
in each collection is not collected separately. Aggregated databases are managed on the Overseer leader
-node.
+node but they are still accessible from other nodes even if they are not persisted - the handler redirects
+the call from originating node to the current Overseer leader.
The handler assumes that a simple aggregation (sum of partial metric values from each resource) is
sufficient. This happens to make sense for the default built-in sets of metrics. Future extensions will
@@ -135,6 +144,7 @@ databases.
`collectPeriod`:: integer, in seconds, default is 60. Metrics values will be collected and respective
databases updated every `collectPeriod` seconds.
+
[IMPORTANT]
====
Value of `collectPeriod` must be at least 1, and if it's changed then all previously existing databases
@@ -142,9 +152,9 @@ with their historic data must be manually removed (new databases will be created
====
`syncPeriod`:: integer, in seconds, default is 60. Data from modified databases will be saved to Solr
-every `syncPeriod` seconds. When accessing the databases via REST API the visibility of most recent
-data depends on this period, because requests accessing the data from other nodes see only the
-version of the data that is stored in the `.system` collection.
+every `syncPeriod` seconds. When accessing the databases via REST API in `index` mode the visibility of
+most recent data depends on this period, because requests accessing the data from other nodes see only
+the version of the data that is stored in the `.system` collection.
=== Example configuration
Example `/clusterprops.json` file with metrics history configuration that turns on the collection of
@@ -154,6 +164,7 @@ properties unrelated to metrics history API.
[source,json]
----
{
+...
"metrics" : {
"history" : {
"enable" : true,
@@ -161,42 +172,86 @@ properties unrelated to metrics history API.
"syncPeriod" : 300
}
}
+...
}
----
== Metrics History API
-Main entry point for accessing metrics history is `/admin/metrics/history` (or `/api/cluster/metrics/history` for
-v2 API).
+Main entry point for accessing metrics history is `/admin/metrics/history` (or `/api/cluster/metrics/history`
+for v2 API).
The following sections describe actions available in this API. All calls have at least one
required parameter `action`.
+All responses contain a section named `state`, which reports the current internal state of the API:
+
+`enableReplicas`:: boolean, corresponds to the `enableReplicas` configuration setting.
+`enableNodes`:: boolean, corresponds to the `enableNodes` configuration setting.
+`mode`:: one of the following values:
+* `inactive` - when metrics collection is disabled (but access to existing metrics history is still available).
+* `memory` - when metrics history is kept only in memory because `.system` collection doesn't exist. In this mode
+clients can access metrics history available on the node that received the reuqest and on the Overseer leader.
+* `index` - when metrics history is periodically stored in the `.system` collection. Data available in memory on
+the node that accepted the request is retrieved from memory, any other data is retrieved from the
+`.system` collection (so it's at least `syncPeriod` old).
+
+Also, the response header section (`responseHeader`) contains `zkConnected` boolean property that indicates
+whether the current node is a part of SolrCloud cluster.
+
=== List databases (`action=list`)
This call produces a list of available databases. It supports the following parameters:
-`rows`:: optional integer, default is 500. Maximum number of results to return
+`rows`:: optional integer, default is 500. Maximum number of results to return.
Example:
+In this SolrCloud example the API is in `memory` mode, and the request was made to a node that is
+not Overseer leader. The API transparently forwarded the request to Overseer leader.
[source,bash]
----
-curl http://localhost:8983/solr/admin/metrics/history?action=list&rows=10
+curl http://localhost:7574/solr/admin/metrics/history?action=list&rows=10
----
[source,json]
----
{
- "responseHeader": {
- "status": 0,
- "QTime": 16
+ "responseHeader": {
+ "zkConnected": true,
+ "status": 0,
+ "QTime": 9
+ },
+ "metrics": {
+ "solr.collection..system": {
+ "lastModified": 1528360138,
+ "node": "127.0.0.1:8983_solr"
+ },
+ "solr.collection.gettingstarted": {
+ "lastModified": 1528360138,
+ "node": "127.0.0.1:8983_solr"
+ },
+ "solr.jvm": {
+ "lastModified": 1528360138,
+ "node": "127.0.0.1:8983_solr"
},
- "metrics": [
- "solr.collection..system",
- "solr.collection.gettingstarted",
- "solr.jvm",
- "solr.node"
- ]
+ "solr.node": {
+ "lastModified": 1528360138,
+ "node": "127.0.0.1:8983_solr"
+ }
+ },
+ "state": {
+ "enableReplicas": false,
+ "enableNodes": false,
+ "mode": "memory"
+ }
}
----
+Note the presence of the `node` element in each section, which shows where the information is coming
+from - when API is in `memory` mode this indicates which results are local and which ones are retrieved
+from the Overseer leader node. When the API is in `index` mode this element always shows the node name that
+received the request (because the data is retrieved from the `.system` collection anyway).
+
+Each section also contains a `lastModified` element, which contains the last modification time when the
+database was update. All timestamps returned from this API correspond to Unix epoch time in seconds.
+
=== Database status (`action=status`)
This call provides detailed status of the selected database.
@@ -207,66 +262,71 @@ The following parameters are supported:
Example:
[source,bash]
----
-curl http://localhost:8983/solr/admin/metrics/history?action=status&name=solr.collection.gettingstarted
+curl http://localhost:7574/solr/admin/metrics/history?action=status&name=solr.collection.gettingstarted
----
[source,json]
----
{
- "responseHeader": {
- "status": 0,
- "QTime": 38
- },
- "metrics": [
- "solr.collection.gettingstarted",
- [
- "status",
- {
- "lastModified": 1527268438,
- "step": 60,
- "datasourceCount": 5,
- "archiveCount": 5,
- "datasourceNames": [
- "numShards",
- "numReplicas",
- "QUERY./select.requests",
- "UPDATE./update.requests",
- "INDEX.sizeInBytes"
- ],
- "datasources": [
- {
- "datasource": "DS:numShards:GAUGE:120:U:U",
- "lastValue": 2
- },
- {
- "datasource": "DS:QUERY./select.requests:COUNTER:120:U:U",
- "lastValue": 8786
- },
- ...
- ],
- "archives": [
- {
- "archive": "RRA:AVERAGE:0.5:1:240",
- "steps": 1,
- "consolFun": "AVERAGE",
- "xff": 0.5,
- "startTime": 1527254040,
- "endTime": 1527268380,
- "rows": 240
- },
- {
- "archive": "RRA:AVERAGE:0.5:10:288",
- "steps": 10,
- "consolFun": "AVERAGE",
- "xff": 0.5,
- "startTime": 1527096000,
- "endTime": 1527268200,
- "rows": 288
- },
- ...
- ]
- }
+ "responseHeader": {
+ "zkConnected": true,
+ "status": 0,
+ "QTime": 46
+ },
+ "metrics": {
+ "solr.collection.gettingstarted": {
+ "status": {
+ "lastModified": 1528318361,
+ "step": 60,
+ "datasourceCount": 5,
+ "archiveCount": 5,
+ "datasourceNames": [
+ "numShards",
+ "numReplicas",
+ "QUERY./select.requests",
+ "UPDATE./update.requests",
+ "INDEX.sizeInBytes"
+ ],
+ "datasources": [
+ {
+ "datasource": "DS:numShards:GAUGE:120:U:U",
+ "lastValue": 2
+ },
+ {
+ "datasource": "DS:numReplicas:GAUGE:120:U:U",
+ "lastValue": 4
+ },
+ ...
+ ],
+ "archives": [
+ {
+ "archive": "RRA:AVERAGE:0.5:1:240",
+ "steps": 1,
+ "consolFun": "AVERAGE",
+ "xff": 0.5,
+ "startTime": 1528303980,
+ "endTime": 1528318320,
+ "rows": 240
+ },
+ {
+ "archive": "RRA:AVERAGE:0.5:10:288",
+ "steps": 10,
+ "consolFun": "AVERAGE",
+ "xff": 0.5,
+ "startTime": 1528146000,
+ "endTime": 1528318200,
+ "rows": 288
+ },
+ ...
]
- ]
+ },
+ "node": "127.0.0.1:7574_solr"
+ }
+ },
+ "state": {
+ "enableReplicas": false,
+ "enableNodes": false,
+ "mode": "index"
+ }
}
----
@@ -286,7 +346,7 @@ values (because points from all datasources in a given time series share the sam
* `graph` - data is returned as PNG images, Base64-encoded, containing graphs of each time series values over time.
In each case the response is structured in a similar way: archive identifiers are keys in a JSON map,
-and timestamps / datapoints / graphs are values.
+all data is placed in a `data` element, with timestamps / datapoints / graphs as values in lists or maps.
==== Examples
This is the output using the default `list` format:
@@ -297,37 +357,49 @@ curl http://localhost:8983/solr/admin/metrics/history?action=get&name=solr.colle
[source,json]
----
{
- "responseHeader": {
- "status": 0,
- "QTime": 36
- },
- "metrics": [
- "solr.collection.gettingstarted",
- [
- "data",
- {
- "RRA:AVERAGE:0.5:1:240": {
- "timestamps":1527254460,
- "timestamps":1527254520,
- "timestamps":1527254580,
- ...
- "values": {
- "numShards": "NaN",
- "numShards": 2.0,
- "numShards": 2.0,
- ...
- "numReplicas": "NaN",
- "numReplicas": 4.0,
- "numReplicas": 4.0,
- ...
- "QUERY./select.requests": "NaN",
- "QUERY./select.requests": 123,
- "QUERY./select.requests": 456,
- ...
- }
- },
- "RRA:AVERAGE:0.5:10:288": {
-...
+ "responseHeader": {
+ "zkConnected": true,
+ "status": 0,
+ "QTime": 4
+ },
+ "metrics": {
+ "solr.collection.gettingstarted": {
+ "data": {
+ "RRA:AVERAGE:0.5:1:240": {
+ "timestamps": [
+ 1528304160,
+ 1528304220,
+ ...
+ ],
+ "values": {
+ "numShards": [
+ "NaN",
+ 2.0,
+ ...
+ ],
+ "numReplicas": [
+ "NaN",
+ 4.0,
+ ...
+ ],
+ ...
+ }
+ },
+ "RRA:AVERAGE:0.5:10:288": {
+ "timestamps": [
+ 1528145400,
+ 1528146000,
+ ...
+ "lastModified": 1528318606,
+ "node": "127.0.0.1:8983_solr"
+ }
+ },
+ "state": {
+ "enableReplicas": false,
+ "enableNodes": false,
+ "mode": "index"
+ }
+}
----
This is the output when using the `string` format:
@@ -338,25 +410,24 @@ curl http://localhost:8983/solr/admin/metrics/history?action=get&name=solr.colle
[source,json]
----
{
- "responseHeader": {
- "status": 0,
- "QTime": 11
- },
- "metrics": [
- "solr.collection.gettingstarted",
- [
- "data",
- {
- "RRA:AVERAGE:0.5:1:240": {
- "timestamps": "1527254820\n1527254880\n1527254940\n...",
- "values": {
- "numShards": "NaN\n2.0\n2.0\n2.0\n2.0\n2.0\n2.0\n...",
- "numReplicas": "NaN\n4.0\n4.0\n4.0\n4.0\n4.0\n4.0\n...",
- "QUERY./select.requests": "NaN\n123\n456\n789\n...",
- ...
- }
- },
- "RRA:AVERAGE:0.5:10:288": {
+ "responseHeader": {
+ "zkConnected": true,
+ "status": 0,
+ "QTime": 2
+ },
+ "metrics": {
+ "solr.collection.gettingstarted": {
+ "data": {
+ "RRA:AVERAGE:0.5:1:240": {
+ "timestamps": "1527254820\n1527254880\n1527254940\n...",
+ "values": {
+ "numShards": "NaN\n2.0\n2.0\n2.0\n2.0\n2.0\n2.0\n...",
+ "numReplicas": "NaN\n4.0\n4.0\n4.0\n4.0\n4.0\n4.0\n...",
+ "QUERY./select.requests": "NaN\n123\n456\n789\n...",
+ ...
+ }
+ },
+ "RRA:AVERAGE:0.5:10:288": {
...
----
@@ -368,29 +439,28 @@ curl http://localhost:8983/solr/admin/metrics/history?action=get&name=solr.colle
[source,json]
----
{
- "responseHeader": {
- "status": 0,
- "QTime": 2275
- },
- "metrics": [
- "solr.collection.gettingstarted",
- [
- "data",
- {
- "RRA:AVERAGE:0.5:1:240": {
- "values": {
- "numShards": "iVBORw0KGgoAAAANSUhEUgAAAkQAAA...",
- "numReplicas": "iVBORw0KGgoAAAANSUhEUgAAAkQA...",
- "QUERY./select.requests": "iVBORw0KGgoAAAANS...",
- ...
- }
- },
- "RRA:AVERAGE:0.5:10:288": {
- "values": {
- "numShards": "iVBORw0KGgoAAAANSUhEUgAAAkQAAA...",
- ...
- },
- ...
+ "responseHeader": {
+ "zkConnected": true,
+ "status": 0,
+ "QTime": 2
+ },
+ "metrics": {
+ "solr.collection.gettingstarted": {
+ "data": {
+ "RRA:AVERAGE:0.5:1:240": {
+ "values": {
+ "numShards": "iVBORw0KGgoAAAANSUhEUgAAAkQAAA...",
+ "numReplicas": "iVBORw0KGgoAAAANSUhEUgAAAkQA...",
+ "QUERY./select.requests": "iVBORw0KGgoAAAANS...",
+ ...
+ }
+ },
+ "RRA:AVERAGE:0.5:10:288": {
+ "values": {
+ "numShards": "iVBORw0KGgoAAAANSUhEUgAAAkQAAA...",
+ ...
+ },
+ ...
----
.Example 60 sec resolution history graph for `QUERY./select.requests` metric