e2e4c75844
This commit is part of the overall change to enable continuous config server stepdown and it includes improvements to logging and test validation. It does not actually enable the stepdown thread.
58 lines
2.0 KiB
JavaScript
58 lines
2.0 KiB
JavaScript
// Tests that merging chunks does not prevent cluster from doing other metadata ops
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(function() {
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'use strict';
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var st = new ShardingTest({ shards: 2 });
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var mongos = st.s0;
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var admin = mongos.getDB("admin");
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var shards = mongos.getCollection("config.shards").find().toArray();
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var coll = mongos.getCollection("foo.bar");
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assert.commandWorked(admin.runCommand({ enableSharding: coll.getDB() + "" }));
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st.ensurePrimaryShard(coll.getDB() + "", shards[0]._id);
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assert.commandWorked(admin.runCommand({ shardCollection: coll + "", key: { _id: 1 } }));
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st.printShardingStatus();
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// Split and merge the first chunk repeatedly
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jsTest.log("Splitting and merging repeatedly...");
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for (var i = 0; i < 5; i++) {
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assert.commandWorked(admin.runCommand({ split: coll + "", middle: { _id: i } }));
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assert.commandWorked(admin.runCommand({ mergeChunks: coll + "",
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bounds: [ { _id: MinKey }, { _id: MaxKey } ] }));
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printjson(mongos.getDB("config").chunks.find().toArray());
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}
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// Move the first chunk to the other shard
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jsTest.log("Moving to another shard...");
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assert.commandWorked(admin.runCommand({ moveChunk: coll + "",
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find: { _id: 0 },
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to: shards[1]._id }));
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// Split and merge the chunk repeatedly
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jsTest.log("Splitting and merging repeatedly (again)...");
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for (var i = 0; i < 5; i++) {
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assert.commandWorked(admin.runCommand({ split: coll + "", middle: { _id: i } }));
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assert.commandWorked(admin.runCommand({ mergeChunks: coll + "",
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bounds: [{ _id: MinKey }, { _id: MaxKey }] }));
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printjson(mongos.getDB("config").chunks.find().toArray());
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}
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// Move the chunk back to the original shard
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jsTest.log("Moving to original shard...");
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assert.commandWorked(admin.runCommand({ moveChunk: coll + "",
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find: { _id: 0 },
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to: shards[0]._id }));
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st.printShardingStatus();
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st.stop();
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})();
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